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  • 1.
    Ablikim, M.
    et al.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Achasov, M. N.
    GI Budker Inst Nucl Phys SB RAS BINP, Novosibirsk 630090, Russia..
    Ahmed, S.
    Helmholtz Inst Mainz, D-55099 Mainz, Germany..
    Ai, X. C.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Albayrak, O.
    Carnegie Mellon Univ, Pittsburgh, PA 15213 USA..
    Albrecht, M.
    Ruhr Univ Bochum, D-44780 Bochum, Germany..
    Ambrose, D. J.
    Univ Rochester, Rochester, NY 14627 USA..
    Amoroso, A.
    GI Budker Inst Nucl Phys SB RAS BINP, Novosibirsk 630090, Russia.;Helmholtz Inst Mainz, D-55099 Mainz, Germany.;Johannes Gutenberg Univ Mainz, D-55099 Mainz, Germany.;Chinese Acad Sci, Beijing 100049, Peoples R China.;Univ Hawaii, Honolulu, HI 96822 USA.;Univ Punjab, Lahore 54590, Pakistan.;Univ Turin, I-10125 Turin, Italy.;INFN, I-10125 Turin, Italy..
    An, F. F.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    An, Q.
    Univ Sci & Technol China, Hefei 230026, Peoples R China..
    Bai, J. Z.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Ferroli, R. Baldini
    INFN Lab Nazl Frascati, I-00044 I- Frascati, Italy..
    Ban, Y.
    Peking Univ, Beijing 100871, Peoples R China..
    Bennett, D. W.
    Indiana Univ, Bloomington, IN 47405 USA..
    Bennett, J. V.
    Carnegie Mellon Univ, Pittsburgh, PA 15213 USA..
    Berger, N. B.
    Johannes Gutenberg Univ Mainz, D-55099 Mainz, Germany..
    Bertani, M.
    INFN Lab Nazl Frascati, I-00044 I- Frascati, Italy..
    Bettoni, D.
    INFN, Sez Ferrara, I-44122 Ferrara, Italy..
    Bian, J. M.
    Univ Minnesota, Minneapolis, MN 55455 USA..
    Bianchi, F.
    Univ Turin, I-10125 Turin, Italy.;INFN, I-10125 Turin, Italy..
    Boger, E.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Boyko, I.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Briere, R. A.
    Carnegie Mellon Univ, Pittsburgh, PA 15213 USA..
    Cai, H.
    Wuhan Univ, Wuhan 430072, Peoples R China..
    Cai, X.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Cakir, O.
    Ankara Univ, TR-06100 Ankara, Turkey..
    Calcaterra, A.
    INFN Lab Nazl Frascati, I-00044 I- Frascati, Italy.;Johannes Gutenberg Univ Mainz, D-55099 Mainz, Germany.;Chinese Acad Sci, Beijing 100049, Peoples R China.;Univ Turin, I-10125 Turin, Italy.;INFN, I-10125 Turin, Italy..
    Cao, G. F.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Cetin, S. A.
    Istanbul Bilgi Univ, TR-34060 Istanbul, Turkey..
    Chang, J. F.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Chelkov, G.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Chen, G.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Chen, H. S.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Chen, H. Y.
    Beihang Univ, Beijing 100191, Peoples R China..
    Chen, J. C.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Chen, M. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Chen, S.
    Chinese Acad Sci, Beijing 100049, Peoples R China..
    Chen, S. J.
    Nanjing Univ, Nanjing 210093, Peoples R China..
    Chen, X.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Chen, X. R.
    Lanzhou Univ, Lanzhou 730000, Peoples R China..
    Chen, Y. B.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Cheng, H. P.
    Huangshan Coll, Huangshan 245000, Peoples R China..
    Chu, X. K.
    Peking Univ, Beijing 100871, Peoples R China..
    Cibinetto, G.
    INFN, Sez Ferrara, I-44122 Ferrara, Italy..
    Dai, H. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Dai, J. P.
    Shanghai Jiao Tong Univ, Shanghai 200240, Peoples R China..
    Dbeyssi, A.
    Helmholtz Inst Mainz, D-55099 Mainz, Germany..
    Dedovich, D.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Deng, Z. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Denig, A.
    Johannes Gutenberg Univ Mainz, D-55099 Mainz, Germany..
    Denysenko, I.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Destefanis, M.
    Univ Turin, I-10125 Turin, Italy.;INFN, I-10125 Turin, Italy..
    De Mori, F.
    Liaoning Univ, Shenyang 110036, Peoples R China..
    Ding, Y.
    Liaoning Univ, Shenyang 110036, Peoples R China..
    Dong, C.
    Nankai Univ, Tianjin 300071, Peoples R China..
    Dong, J.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Dong, L. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Dong, M. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Dou, Z. L.
    Nanjing Univ, Nanjing 210093, Peoples R China..
    Du, S. X.
    Zhengzhou Univ, Zhengzhou 450001, Peoples R China..
    Duan, P. F.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Fan, J. Z.
    Tsinghua Univ, Beijing 100084, Peoples R China..
    Fang, J.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Fang, S. S.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Fang, X.
    Univ Sci & Technol China, Hefei 230026, Peoples R China..
    Fang, Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Farinelli, R.
    INFN, Sez Ferrara, I-44122 Ferrara, Italy.;Univ Ferrara, I-44122 Ferrara, Italy..
    Fava, L.
    Univ Piemonte Orientale, I-15121 Alessandria, Italy.;INFN, I-10125 Turin, Italy..
    Fedorov, O.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Feldbauer, F.
    Johannes Gutenberg Univ Mainz, D-55099 Mainz, Germany..
    Felici, G.
    INFN Lab Nazl Frascati, I-00044 I- Frascati, Italy..
    Feng, C. Q.
    Univ Sci & Technol China, Hefei 230026, Peoples R China..
    Fioravanti, E.
    INFN, Sez Ferrara, I-44122 Ferrara, Italy..
    Fritsch, M.
    Helmholtz Inst Mainz, D-55099 Mainz, Germany.;Johannes Gutenberg Univ Mainz, D-55099 Mainz, Germany..
    Fu, C. D.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Gao, Q.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Gao, X. L.
    Univ Sci & Technol China, Hefei 230026, Peoples R China..
    Gao, X. Y.
    Beihang Univ, Beijing 100191, Peoples R China..
    Gao, Y.
    Tsinghua Univ, Beijing 100084, Peoples R China..
    Gao, Z.
    Univ Sci & Technol China, Hefei 230026, Peoples R China..
    Garzia, I.
    INFN, Sez Ferrara, I-44122 Ferrara, Italy..
    Goetzen, K.
    GSI Helmholtzcentre Heavy Ion Res GmbH, D-64291 Darmstadt, Germany..
    Gong, L.
    Nankai Univ, Tianjin 300071, Peoples R China..
    Gong, W. X.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Gradl, W.
    Johannes Gutenberg Univ Mainz, D-55099 Mainz, Germany..
    Greco, M.
    Univ Turin, I-10125 Turin, Italy.;INFN, I-10125 Turin, Italy..
    Gu, M. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Gu, Y. T.
    Guangxi Univ, Nanning 530004, Peoples R China..
    Guan, Y. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Guo, A. Q.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Guo, L. B.
    Nanjing Normal Univ, Nanjing 210023, Peoples R China..
    Guo, R. P.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Guo, Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Guo, Y. P.
    Johannes Gutenberg Univ Mainz, D-55099 Mainz, Germany..
    Haddadi, Z.
    Univ Groningen, KVI CART, NL-9747 AA Groningen, Netherlands..
    Hafner, A.
    Johannes Gutenberg Univ Mainz, D-55099 Mainz, Germany..
    Han, S.
    Wuhan Univ, Wuhan 430072, Peoples R China..
    Hao, X. Q.
    Henan Normal Univ, Xinxiang 453007, Peoples R China..
    Harris, F. A.
    Univ Hawaii, Honolulu, HI 96822 USA..
    He, K. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Heinsius, F. H.
    Ruhr Univ Bochum, D-44780 Bochum, Germany..
    Held, T.
    Ruhr Univ Bochum, D-44780 Bochum, Germany..
    Heng, Y. K.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Holtmann, T.
    Ruhr Univ Bochum, D-44780 Bochum, Germany..
    Hou, Z. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Hu, C.
    Nanjing Normal Univ, Nanjing 210023, Peoples R China..
    Hu, H. M.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Hu, J. F.
    Univ Turin, I-10125 Turin, Italy.;INFN, I-10125 Turin, Italy..
    Hu, T.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Hu, Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Huang, G. S.
    Univ Sci & Technol China, Hefei 230026, Peoples R China..
    Huang, J. S.
    Henan Normal Univ, Xinxiang 453007, Peoples R China..
    Huang, X. T.
    Shandong Univ, Jinan 250100, Peoples R China..
    Huang, X. Z.
    Nanjing Univ, Nanjing 210093, Peoples R China..
    Huang, Y.
    Nanjing Univ, Nanjing 210093, Peoples R China..
    Huang, Z. L.
    Liaoning Univ, Shenyang 110036, Peoples R China..
    Hussain, T.
    Univ Punjab, Lahore 54590, Pakistan..
    Ji, Q.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Ji, Q. P.
    Nankai Univ, Tianjin 300071, Peoples R China..
    Ji, X. B.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Ji, X. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Jiang, L. W.
    Wuhan Univ, Wuhan 430072, Peoples R China..
    Jiang, X. S.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Jiang, X. Y.
    Nankai Univ, Tianjin 300071, Peoples R China..
    Jiao, J. B.
    Shandong Univ, Jinan 250100, Peoples R China..
    Jiao, Z.
    Huangshan Coll, Huangshan 245000, Peoples R China..
    Jin, D. P.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Jin, S.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Johansson, T
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper.
    Julin, A.
    Univ Minnesota, Minneapolis, MN 55455 USA..
    Kalantar-Nayestanaki, N.
    Univ Groningen, KVI CART, NL-9747 AA Groningen, Netherlands..
    Kang, X. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Kang, X. S.
    Nankai Univ, Tianjin 300071, Peoples R China..
    Kavatsyuk, M.
    Univ Groningen, KVI CART, NL-9747 AA Groningen, Netherlands..
    Ke, B. C.
    Carnegie Mellon Univ, Pittsburgh, PA 15213 USA..
    Kiese, P.
    Johannes Gutenberg Univ Mainz, D-55099 Mainz, Germany..
    Kliemt, R.
    Helmholtz Inst Mainz, D-55099 Mainz, Germany..
    Kloss, B.
    Johannes Gutenberg Univ Mainz, D-55099 Mainz, Germany..
    Kolcu, O. B.
    Istanbul Bilgi Univ, TR-34060 Istanbul, Turkey..
    Kopf, B.
    Ruhr Univ Bochum, D-44780 Bochum, Germany..
    Kornicer, M.
    Univ Hawaii, Honolulu, HI 96822 USA..
    Kupsc, Andrzej
    Uppsala universitet, The Svedberg-laboratoriet. Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Fysiska sektionen, Institutionen för fysik och astronomi, Kärnfysik.
    Khn, W.
    Justus Liebig Univ Giessen, Phys Inst 2, D-35392 Giessen, Germany..
    Lange, J. S.
    Justus Liebig Univ Giessen, Phys Inst 2, D-35392 Giessen, Germany..
    Lara, M.
    Indiana Univ, Bloomington, IN 47405 USA..
    Larin, P.
    Helmholtz Inst Mainz, D-55099 Mainz, Germany..
    Leithoff, H.
    Johannes Gutenberg Univ Mainz, D-55099 Mainz, Germany..
    Leng, C.
    INFN, I-10125 Turin, Italy..
    Li, Cui
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Fysiska sektionen, Institutionen för fysik och astronomi, Kärnfysik.
    Li, Cheng
    Univ Sci & Technol China, Hefei 230026, Peoples R China..
    Li, D. M.
    Zhengzhou Univ, Zhengzhou 450001, Peoples R China..
    Li, F.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Li, F. Y.
    Peking Univ, Beijing 100871, Peoples R China..
    Li, G.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Li, H. B.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Li, H. J.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Li, J. C.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Li, Jin
    Seoul Natl Univ, Seoul 151747, South Korea..
    Li, K.
    Hangzhou Normal Univ, Hangzhou 310036, Peoples R China.;Shandong Univ, Jinan 250100, Peoples R China..
    Li, Lei
    Beijing Inst Petrochem Technol, Beijing 102617, Peoples R China..
    Li, P. R.
    Chinese Acad Sci, Beijing 100049, Peoples R China..
    Li, Q. Y.
    Shandong Univ, Jinan 250100, Peoples R China..
    Li, T.
    Shandong Univ, Jinan 250100, Peoples R China..
    Li, W. D.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Li, W. G.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Li, X. L.
    Shandong Univ, Jinan 250100, Peoples R China..
    Li, X. M.
    Guangxi Univ, Nanning 530004, Peoples R China..
    Li, X. N.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Li, X. Q.
    Nankai Univ, Tianjin 300071, Peoples R China..
    Li, Y. B.
    Beihang Univ, Beijing 100191, Peoples R China..
    Li, Z. B.
    Sun Yat Sen Univ, Guangzhou 510275, Guangdong, Peoples R China..
    Liang, H.
    Univ Sci & Technol China, Hefei 230026, Peoples R China..
    Liang, J. J.
    Guangxi Univ, Nanning 530004, Peoples R China..
    Liang, Y. F.
    Sichuan Univ, Chengdu 610064, Peoples R China..
    Liang, Y. T.
    Justus Liebig Univ Giessen, Phys Inst 2, D-35392 Giessen, Germany..
    Liao, G. R.
    Guangxi Normal Univ, Guilin 541004, Peoples R China..
    Lin, D. X.
    Helmholtz Inst Mainz, D-55099 Mainz, Germany..
    Liu, B.
    Shanghai Jiao Tong Univ, Shanghai 200240, Peoples R China..
    Liu, B. J.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Liu, C. X.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Liu, D.
    Univ Sci & Technol China, Hefei 230026, Peoples R China..
    Liu, F. H.
    Shanxi Univ, Taiyuan 030006, Peoples R China..
    Liu, Fang
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Liu, Feng
    Cent China Normal Univ, Wuhan 430079, Peoples R China..
    Liu, H. B.
    Guangxi Univ, Nanning 530004, Peoples R China..
    Liu, H. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;Henan Univ Sci & Technol, Luoyang 471003, Peoples R China..
    Liu, H. M.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Liu, J.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Liu, J. B.
    Univ Sci & Technol China, Hefei 230026, Peoples R China..
    Liu, J. P.
    Wuhan Univ, Wuhan 430072, Peoples R China..
    Liu, J. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Liu, K.
    Tsinghua Univ, Beijing 100084, Peoples R China..
    Liu, K. Y.
    Liaoning Univ, Shenyang 110036, Peoples R China..
    Liu, L. D.
    Peking Univ, Beijing 100871, Peoples R China..
    Liu, P. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Liu, Q.
    Chinese Acad Sci, Beijing 100049, Peoples R China..
    Liu, S. B.
    Univ Sci & Technol China, Hefei 230026, Peoples R China..
    Liu, X.
    Lanzhou Univ, Lanzhou 730000, Peoples R China..
    Liu, Y. B.
    Nankai Univ, Tianjin 300071, Peoples R China..
    Liu, Y. Y.
    Nankai Univ, Tianjin 300071, Peoples R China..
    Liu, Z. A.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Liu, Zhiqing
    Johannes Gutenberg Univ Mainz, D-55099 Mainz, Germany..
    Loehner, H.
    Univ Groningen, KVI CART, NL-9747 AA Groningen, Netherlands..
    Lou, X. C.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Lu, H. J.
    Huangshan Coll, Huangshan 245000, Peoples R China..
    Lu, J. G.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Lu, Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Lu, Y. P.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Luo, C. L.
    Nanjing Normal Univ, Nanjing 210023, Peoples R China..
    Luo, M. X.
    Zhejiang Univ, Hangzhou 310027, Zhejiang, Peoples R China..
    Luo, T.
    Univ Hawaii, Honolulu, HI 96822 USA..
    Luo, X. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Lyu, X. R.
    Chinese Acad Sci, Beijing 100049, Peoples R China..
    Ma, F. C.
    Liaoning Univ, Shenyang 110036, Peoples R China..
    Ma, H. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Ma, L. L.
    Shandong Univ, Jinan 250100, Peoples R China..
    Ma, M. M.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Ma, Q. M.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Ma, T.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Ma, X. N.
    Nankai Univ, Tianjin 300071, Peoples R China..
    Ma, X. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Ma, Y. M.
    Shandong Univ, Jinan 250100, Peoples R China..
    Maas, F. E.
    Helmholtz Inst Mainz, D-55099 Mainz, Germany..
    Maggiora, M.
    Univ Turin, I-10125 Turin, Italy.;INFN, I-10125 Turin, Italy..
    Malik, Q. A.
    Univ Punjab, Lahore 54590, Pakistan..
    Mao, Y. J.
    Peking Univ, Beijing 100871, Peoples R China..
    Mao, Z. P.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Marcello, S.
    Univ Turin, I-10125 Turin, Italy.;INFN, I-10125 Turin, Italy..
    Messchendorp, J. G.
    Univ Groningen, KVI CART, NL-9747 AA Groningen, Netherlands..
    Mezzadri, G.
    Univ Ferrara, I-44122 Ferrara, Italy..
    Min, J.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Mitchell, R. E.
    Indiana Univ, Bloomington, IN 47405 USA..
    Mo, X. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Mo, Y. J.
    Cent China Normal Univ, Wuhan 430079, Peoples R China..
    Morales, C. Morales
    Helmholtz Inst Mainz, D-55099 Mainz, Germany..
    Muchnoi, N. Yu.
    GI Budker Inst Nucl Phys SB RAS BINP, Novosibirsk 630090, Russia..
    Muramatsu, H.
    Univ Minnesota, Minneapolis, MN 55455 USA..
    Musiol, P.
    Ruhr Univ Bochum, D-44780 Bochum, Germany..
    Nefedov, Y.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Nerling, F.
    Helmholtz Inst Mainz, D-55099 Mainz, Germany..
    Nikolaev, I. B.
    GI Budker Inst Nucl Phys SB RAS BINP, Novosibirsk 630090, Russia..
    Ning, Z.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Nisar, S.
    COMSATS Inst Informat Technol, Lahore 54000, Pakistan..
    Niu, S. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Niu, X. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Olsen, S. L.
    Seoul Natl Univ, Seoul 151747, South Korea..
    Ouyang, Q.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Pacetti, S.
    INFN, I-06100 Perugia, Italy.;Univ Perugia, I-06100 Perugia, Italy..
    Pan, Y.
    Univ Sci & Technol China, Hefei 230026, Peoples R China..
    Patteri, P.
    INFN Lab Nazl Frascati, I-00044 I- Frascati, Italy..
    Pelizaeus, M.
    Ruhr Univ Bochum, D-44780 Bochum, Germany..
    Peng, H. P.
    Univ Sci & Technol China, Hefei 230026, Peoples R China..
    Peters, K.
    GSI Helmholtzcentre Heavy Ion Res GmbH, D-64291 Darmstadt, Germany..
    Pettersson, Jean
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - BMC, Analytisk kemi.
    Ping, J. L.
    Nanjing Normal Univ, Nanjing 210023, Peoples R China..
    Ping, R. G.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Poling, R.
    Univ Minnesota, Minneapolis, MN 55455 USA..
    Prasad, V.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Qi, H. R.
    Beihang Univ, Beijing 100191, Peoples R China..
    Qi, M.
    Nanjing Univ, Nanjing 210093, Peoples R China..
    Qian, S.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Qiao, C. F.
    Chinese Acad Sci, Beijing 100049, Peoples R China..
    Qin, L. Q.
    Shandong Univ, Jinan 250100, Peoples R China..
    Qin, N.
    Wuhan Univ, Wuhan 430072, Peoples R China..
    Qin, X. S.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Qin, Z. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Qiu, J. F.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Rashid, K. H.
    Univ Punjab, Lahore 54590, Pakistan..
    Redmer, C. F.
    Johannes Gutenberg Univ Mainz, D-55099 Mainz, Germany..
    Ripka, M.
    Johannes Gutenberg Univ Mainz, D-55099 Mainz, Germany..
    Rong, G.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Rosner, Ch.
    Helmholtz Inst Mainz, D-55099 Mainz, Germany..
    Ruan, X. D.
    Guangxi Univ, Nanning 530004, Peoples R China..
    Sarantsev, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Savrie, M.
    Univ Ferrara, I-44122 Ferrara, Italy..
    Schnier, C.
    Ruhr Univ Bochum, D-44780 Bochum, Germany..
    Schönning, Karin
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Fysiska sektionen, Institutionen för fysik och astronomi, Kärnfysik. Uppsala universitet, The Svedberg-laboratoriet.
    Schumann, S.
    Johannes Gutenberg Univ Mainz, D-55099 Mainz, Germany..
    Shan, W.
    Peking Univ, Beijing 100871, Peoples R China..
    Shao, M.
    Univ Sci & Technol China, Hefei 230026, Peoples R China..
    Shen, C. P.
    Beihang Univ, Beijing 100191, Peoples R China..
    Shen, P. X.
    Nankai Univ, Tianjin 300071, Peoples R China..
    Shen, X. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Sheng, H. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Shi, M.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Song, W. M.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Song, X. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Sosio, S.
    Univ Turin, I-10125 Turin, Italy.;INFN, I-10125 Turin, Italy..
    Spataro, S.
    Univ Turin, I-10125 Turin, Italy.;INFN, I-10125 Turin, Italy..
    Sun, G. X.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Sun, J. F.
    Henan Normal Univ, Xinxiang 453007, Peoples R China..
    Sun, S. S.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Sun, X. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Sun, Y. J.
    Univ Sci & Technol China, Hefei 230026, Peoples R China..
    Sun, Y. Z.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Sun, Z. J.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Sun, Z. T.
    Indiana Univ, Bloomington, IN 47405 USA..
    Tang, C. J.
    Sichuan Univ, Chengdu 610064, Peoples R China..
    Tang, X.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Tapan, I.
    Uludag Univ, TR-16059 Bursa, Turkey..
    Thorndike, E. H.
    Univ Rochester, Rochester, NY 14627 USA..
    Tiemens, M.
    Univ Groningen, KVI CART, NL-9747 AA Groningen, Netherlands..
    Uman, I.
    Near East Univ, Nicosia 10, Turkey..
    Varner, G. S.
    Univ Hawaii, Honolulu, HI 96822 USA..
    Wang, B.
    Nankai Univ, Tianjin 300071, Peoples R China..
    Wang, B. L.
    Chinese Acad Sci, Beijing 100049, Peoples R China..
    Wang, D.
    Peking Univ, Beijing 100871, Peoples R China..
    Wang, D. Y.
    Peking Univ, Beijing 100871, Peoples R China..
    Wang, K.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Wang, L. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Wang, L. S.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Wang, M.
    Shandong Univ, Jinan 250100, Peoples R China..
    Wang, P.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Wang, P. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Wang, S. G.
    Peking Univ, Beijing 100871, Peoples R China..
    Wang, W.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Wang, W. P.
    Univ Sci & Technol China, Hefei 230026, Peoples R China..
    Wang, X. F.
    Tsinghua Univ, Beijing 100084, Peoples R China..
    Wang, Y.
    Soochow Univ, Suzhou 215006, Peoples R China..
    Wang, Y. D.
    Helmholtz Inst Mainz, D-55099 Mainz, Germany..
    Wang, Y. F.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Wang, Y. Q.
    Johannes Gutenberg Univ Mainz, D-55099 Mainz, Germany..
    Wang, Z.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Wang, Z. G.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Wang, Z. H.
    Univ Sci & Technol China, Hefei 230026, Peoples R China..
    Wang, Z. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Weber, T.
    Johannes Gutenberg Univ Mainz, D-55099 Mainz, Germany..
    Wei, D. H.
    Guangxi Normal Univ, Guilin 541004, Peoples R China..
    Wei, J. B.
    Peking Univ, Beijing 100871, Peoples R China..
    Weidenkaff, P.
    Johannes Gutenberg Univ Mainz, D-55099 Mainz, Germany..
    Wen, S. P.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Wiedner, U.
    Ruhr Univ Bochum, D-44780 Bochum, Germany..
    Wolke, Magnus
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Fysiska sektionen, Institutionen för fysik och astronomi, Kärnfysik.
    Wu, L. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Wu, L. J.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Wu, Z.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Xia, L.
    Univ Sci & Technol China, Hefei 230026, Peoples R China..
    Xia, L. G.
    Tsinghua Univ, Beijing 100084, Peoples R China..
    Xia, Y.
    Hunan Univ, Changsha 410082, Peoples R China..
    Xiao, D.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Xiao, H.
    Univ South China, Hengyang 421001, Peoples R China..
    Xiao, Z. J.
    Nanjing Normal Univ, Nanjing 210023, Peoples R China..
    Xie, Y. G.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Xiu, Q. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Xu, G. F.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Xu, J. J.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Xu, L.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Xu, Q. J.
    Hangzhou Normal Univ, Hangzhou 310036, Peoples R China..
    Xu, Q. N.
    Chinese Acad Sci, Beijing 100049, Peoples R China..
    Xu, X. P.
    Soochow Univ, Suzhou 215006, Peoples R China..
    Yan, L.
    Univ Turin, I-10125 Turin, Italy.;INFN, I-10125 Turin, Italy..
    Yan, W. B.
    Univ Sci & Technol China, Hefei 230026, Peoples R China..
    Yan, W. C.
    Univ Sci & Technol China, Hefei 230026, Peoples R China..
    Yan, Y. H.
    Hunan Univ, Changsha 410082, Peoples R China..
    Yang, H. J.
    Shanghai Jiao Tong Univ, Shanghai 200240, Peoples R China..
    Yang, H. X.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Yang, L.
    Wuhan Univ, Wuhan 430072, Peoples R China..
    Yang, Y. X.
    Guangxi Normal Univ, Guilin 541004, Peoples R China..
    Ye, M.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Ye, M. H.
    China Ctr Adv Sci & Technol, Beijing 100190, Peoples R China..
    Yin, J. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Yu, B. X.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Yu, C. X.
    Nankai Univ, Tianjin 300071, Peoples R China..
    Yu, J. S.
    Lanzhou Univ, Lanzhou 730000, Peoples R China..
    Yuan, C. Z.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Yuan, W. L.
    Nanjing Univ, Nanjing 210093, Peoples R China..
    Yuan, Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Yuncu, A.
    Istanbul Bilgi Univ, TR-34060 Istanbul, Turkey..
    Zafar, A. A.
    Univ Punjab, Lahore 54590, Pakistan..
    Zallo, A.
    INFN Lab Nazl Frascati, I-00044 I- Frascati, Italy..
    Zeng, Y.
    Hunan Univ, Changsha 410082, Peoples R China..
    Zeng, Z.
    Univ Sci & Technol China, Hefei 230026, Peoples R China..
    Zhang, B. X.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhang, B. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhang, C.
    Nanjing Univ, Nanjing 210093, Peoples R China..
    Zhang, C. C.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhang, D. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhang, H. H.
    Sun Yat Sen Univ, Guangzhou 510275, Guangdong, Peoples R China..
    Zhang, H. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhang, J.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhang, J. J.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhang, J. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhang, J. Q.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhang, J. W.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhang, J. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhang, J. Z.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhang, K.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhang, L.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhang, S. Q.
    Nankai Univ, Tianjin 300071, Peoples R China..
    Zhang, X. Y.
    Shandong Univ, Jinan 250100, Peoples R China..
    Zhang, Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhang, Y. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhang, Y. N.
    Chinese Acad Sci, Beijing 100049, Peoples R China..
    Zhang, Y. T.
    Univ Sci & Technol China, Hefei 230026, Peoples R China..
    Zhang, Yu
    Chinese Acad Sci, Beijing 100049, Peoples R China..
    Zhang, Z. H.
    Cent China Normal Univ, Wuhan 430079, Peoples R China..
    Zhang, Z. P.
    Univ Sci & Technol China, Hefei 230026, Peoples R China..
    Zhang, Z. Y.
    Wuhan Univ, Wuhan 430072, Peoples R China..
    Zhao, G.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhao, J. W.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhao, J. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhao, J. Z.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhao, Lei
    Univ Sci & Technol China, Hefei 230026, Peoples R China..
    Zhao, Ling
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhao, M. G.
    Nankai Univ, Tianjin 300071, Peoples R China..
    Zhao, Q.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhao, Q. W.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhao, S. J.
    Zhengzhou Univ, Zhengzhou 450001, Peoples R China..
    Zhao, T. C.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhao, Y. B.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhao, Z. G.
    Univ Sci & Technol China, Hefei 230026, Peoples R China..
    Zhemchugov, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Zheng, B.
    Univ South China, Hengyang 421001, Peoples R China..
    Zheng, J. P.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zheng, W. J.
    Shandong Univ, Jinan 250100, Peoples R China..
    Zheng, Y. H.
    Chinese Acad Sci, Beijing 100049, Peoples R China..
    Zhong, B.
    Nanjing Normal Univ, Nanjing 210023, Peoples R China..
    Zhou, L.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhou, X.
    Wuhan Univ, Wuhan 430072, Peoples R China..
    Zhou, X. K.
    Univ Sci & Technol China, Hefei 230026, Peoples R China..
    Zhou, X. R.
    Univ Sci & Technol China, Hefei 230026, Peoples R China..
    Zhou, X. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhu, K.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhu, K. J.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhu, S.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhu, S. H.
    Univ Sci & Technol Liaoning, Anshan 114051, Peoples R China..
    Zhu, X. L.
    Tsinghua Univ, Beijing 100084, Peoples R China..
    Zhu, Y. C.
    Univ Sci & Technol China, Hefei 230026, Peoples R China..
    Zhu, Y. S.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhu, Z. A.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhuang, J.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zotti, L.
    Univ Turin, I-10125 Turin, Italy.;INFN, I-10125 Turin, Italy..
    Zou, B. S.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zou, J. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Amplitude analysis of D0 -> K -π+π+π-2017Ingår i: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 95, nr 7, artikel-id 072010Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    We present an amplitude analysis of the decay D-0 -> K- pi(+)pi(+)pi(-) based on a data sample of 2.93 fb(-1) acquired by the BESIII detector at the psi(3770) resonance. With a nearly background free sample of about 16000 events, we investigate the substructure of the decay and determine the relative fractions and the phases among the different intermediate processes. Our amplitude model includes the two-body decays D-0 -> (K) over bar*(0)rho(0), D-0 -> K- a(1)(+) (1260) and D-0 -> K-1(-)(1270)pi(+), the three-body decays D-0 -> K-1(-)*(0)pi(+)pi(-) and D-0 -> K- pi(+)rho(0), as well as the four-body nonresonant decay D-0 -> K- pi(+)pi(+)pi(-). The dominant intermediate process is D-0 -> K(-)a(1)(+)(1260)accounting for a fit fraction of 54.6%.

  • 2.
    Bykov, I.
    et al.
    Royal Inst Technol KTH, Div Fus Plasma Phys, Stockholm, Sweden..
    Bergsåker, H.
    Royal Inst Technol KTH, Div Fus Plasma Phys, Stockholm, Sweden..
    Possnert, Göran
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, För teknisk-naturvetenskapliga fakulteten gemensamma enheter, Tandemlaboratoriet.
    Zhou, Y.
    Royal Inst Technol KTH, Div Fus Plasma Phys, Stockholm, Sweden..
    Heinola, K.
    Univ Helsinki, Dept Phys, POB 64, Helsinki 00560, Finland..
    Pettersson, Jean
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - BMC, Analytisk kemi.
    Conroy, Sean
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Fysiska sektionen, Institutionen för fysik och astronomi, Tillämpad kärnfysik.
    Likonen, J.
    VTT, POB 1000, Espoo 02044, Finland..
    Petersson, P.
    Royal Inst Technol KTH, Div Fus Plasma Phys, Stockholm, Sweden..
    Widdowson, A.
    EUROfus Consortium, JET, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England..
    Studies of Be migration in the JET tokamak using AMS with Be-10 marker2016Konferensbidrag (Refereegranskat)
    Abstract [en]

    The JET tokamak is operated with beryllium limiter tiles in the main chamber and tungsten coated carbon fiber composite tiles and solid W tiles in the divertor. One important issue is how wall materials are migrating during plasma operation. To study beryllium redistribution in the main chamber and in the divertor, a Be-10 enriched limiter tile was installed prior to plasma operations in 2011-2012. Methods to take surface samples have been developed, an abrasive method for bulk Be tiles in the main chamber, which permits reuse of the tiles, and leaching with hot HCl to remove all Be deposited at W coated surfaces in the divertor. Quantitative analysis of the total amount of Be in cm(2) sized samples was made with inductively coupled plasma atomic emission spectroscopy (ICP-AES). The Be-10/Be-9 ratio in the samples was measured with accelerator mass spectrometry (AMS). The experimental setup and methods are described in detail, including sample preparation, measures to eliminate contributions in AMS from the B-10 isobar, possible activation due to plasma generated neutrons and effects of diffusive isotope mixing. For the first time marker concentrations are measured in the divertor deposits. They are in the range 0.4-1.2% of the source concentration, with moderate poloidal variation.

  • 3.
    Ericzon, Christina
    et al.
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för fysikalisk och analytisk kemi, Analytisk kemi.
    Pettersson, Jean
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för fysikalisk och analytisk kemi, Analytisk kemi.
    Andersson, Marit
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för fysikalisk och analytisk kemi, Analytisk kemi.
    Olin, Åke
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för fysikalisk och analytisk kemi, Analytisk kemi.
    Determination and speciation of selenium in end products from a garbage incinerator1989Ingår i: Environmental Science and Technology, ISSN 0013-936X, E-ISSN 1520-5851, Environmental Science & Technology, Vol. 23, nr 12, s. 1524-1528Artikel i tidskrift (Refereegranskat)
  • 4. Ericzon, Christina
    et al.
    Pettersson, Jean
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - BMC, Analytisk kemi. Uppsala University.
    Olin, Åke
    Interference from iodide in the determination of trace level selenium1990Ingår i: Talanta: The International Journal of Pure and Applied Analytical Chemistry, ISSN 0039-9140, E-ISSN 1873-3573, Vol. 37, nr 7, s. 725-730Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The rate of the reaction between iodide and selenium(IV) at trace levels to form selenium and iodine has been determined in 1–6M hydrochloric acid. The reaction rate increases rapidly with acidity. When hydrochloric acid is added to reduce selenate to selenite prior to the determination of total selenium, some selenium may be lost by reduction to the element if iodide is present. A table of half-lives of the selenite—iodide reaction under various conditions is presented. A method for removal of iodide is suggested.

  • 5.
    Forsgard, Niklas
    et al.
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för fysikalisk och analytisk kemi, Analytisk kemi. Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för fysikalisk och analytisk kemi. Analytisk kemi.
    Nilsson, Eva
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för fysikalisk och analytisk kemi, Analytisk kemi. Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för fysikalisk och analytisk kemi. Analytisk kemi.
    Andersson, Marit
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för fysikalisk och analytisk kemi, Analytisk kemi. Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för fysikalisk och analytisk kemi. Analytisk kemi.
    Pettersson, Jean
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för fysikalisk och analytisk kemi, Analytisk kemi. Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för fysikalisk och analytisk kemi.
    Investigation of matrix effects in boron determination using organic solvents as modifiers for liquid chromatography coupled to ICP-MS2006Ingår i: Journal of Analytical Atomic Spectroscopy, nr 21, s. 305-310Artikel i tidskrift (Refereegranskat)
  • 6.
    Forsgard, Niklas
    et al.
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för fysikalisk och analytisk kemi.
    Sjöberg, Per
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för fysikalisk och analytisk kemi.
    Bylund, Dan
    Andersson, Marit
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för fysikalisk och analytisk kemi.
    Pettersson, Jean
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för fysikalisk och analytisk kemi.
    Screening and identification of aluminium-containing biomolecules by column-switched LC-ICP-MS and LC-ESI-MS/MS2007Ingår i: Journal of Analytical Atomic Spectrometry, ISSN 0267-9477, E-ISSN 1364-5544, Vol. 22, nr 11, s. 1397-1402Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Column-switching liquid chromatography followed by low resolution ICP-MS was evaluated as a tool for speciation analysis of aluminium-containing biomolecules. The strategy was applied on siderophores, small organic molecules (Mr < 1500) which normally act as strong iron chelators. The drawbacks normally encounterd with aluminium detection using low resolution ICP-MS are the formation of polyatomic ions causing isobaric overlaps and space-charge effects. When adding a carbon rich solvent, such as methanol or acetonitrile, the 13C14N+, 12C15N+ and 12C14N1H+ with the same mass as 27Al+ will form in the plasma. The nitrogen is either entrained from the surrounding atmosphere or added with the constituents in the mobile phase. These disadvantages were successfully counteracted by the use of nitrogen free organic modifier in the mobile phase and the use of cool plasma conditions. Detection limits for standard solutions of aluminium-chelated ferrichrome in sub-nanomolar range were obtained by monitoring the aluminium-27 isotope. The combined use of LC-ICP-MS and LC-ESI-MS/MS was also evaluated as a tool to identify unknown metal complexes, here siderophores, in field soil solution samples. Two aluminium-chelated siderophores, Al-desferrichrom and Al-desferricrocin, were identified and quantified. Both aluminium-siderophore complexes were present in the low nanomolar range (1.1 and 0.7 nM, respectively).

  • 7.
    Karunasekera, Hasanthi
    et al.
    Swedish Univ Agr Sci, Dept Forest Prod Wood Sci, Box 7008, SE-75007 Uppsala, Sweden.
    Pettersson, Jean
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - BMC, Analytisk kemi.
    Mi, Jia
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - BMC, Analytisk kemi.
    Bergquist, Jonas
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - BMC, Analytisk kemi.
    Daniel, Geoffrey
    Swedish Univ Agr Sci, Dept Forest Prod Wood Sci, Box 7008, SE-75007 Uppsala, Sweden.
    Copper tolerance of the soft-rot fungus Phialophora malorum grown in-vitro revealed by microscopy and global protein expression2019Ingår i: International Biodeterioration & Biodegradation, ISSN 0964-8305, E-ISSN 1879-0208, Vol. 137, s. 147-152Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    In this study, we used proteomics in conjunction with microscopy to study differences in the proteome and hyphal morphology of the copper tolerant soft rot fungus Phialophora malorum grown in media containing 0.064, 0.64% Cu as CuSO4. Unique proteins were found in the control and the copper-treated (0.064% CuSO4) samples. Of five unique proteins found in the 0.064% CuSO4 treated cultures, ATP synthase subunit alpha is considered to play an important role in copper tolerance as it is involved in the biosynthesis of fatty acids and steroids and may relate to morphological changes associated with hyphal cell walls of the fungus when grown in the presence of copper. ICP-AES analyses showed total mycelial Cu to increase with media Cu with 5246- and 16535 mu g Cu/g dry wt mycelia respectively found in 0.064 and 0.64% Cu-cultures after 6 weeks growth. Rubeanic acid staining of 0.064% mycelia showed Cu bound in intracellular bodies while most Cu was found as extracellular precipitates on the surfaces of hyphae in 0.64% Cu. SEM showed hyphal surfaces enrobed in fibrillar polysaccharides to which Cu was bound.

  • 8.
    Korvela, Marcus
    et al.
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - BMC, Analytisk kemi.
    Andersson, Marit
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - BMC, Analytisk kemi.
    Pettersson, Jean
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - BMC, Analytisk kemi.
    Internal standards in inductively coupled plasma mass spectrometry using kinetic energy discrimination and dynamic reaction cells2018Ingår i: Journal of Analytical Atomic Spectrometry, ISSN 0267-9477, E-ISSN 1364-5544, Vol. 33, nr 10, s. 1770-1776Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    ICP-MS is a sensitive element analysis technique used for analyzing several different sample types. This can result in difficult matrixes which can affect both physical parameters and create overlaps of analyte elements. Some of the possible overlaps can be reduced by the use of reaction and/or collision cells, while the use of internal standards can help with reducing the physical interferences caused by a matrix. While both internal standardization and the use of cells have been studied separately, their effects on each other have not been investigated earlier. In this study ICP-MS was used to analyze Mg-24, Al-27, Ti-47, Ti-49, V-51, Cr-52, Cr-53, Mn-55, Fe-57, Co-59, Ni-60, Ni-61, Ni-62, Cu-63, Cu-65, Zn-66, Zn-67, As-75, Se-78, Se-82, Cd-111, and Pb-208 with Be-9, Y-89, Ga-69, Rh-103, In-115, Ir-193, and Tl-205 as internal standards with high concentrations of either HNO3, PBS-buffer, or Triton X-100 as the matrix, in reaction-, collision- and standard-cell modes. This was done to investigate which internal standards would compensate matrix effects in different cell modes. All internal standards, except Be, compensated fairly well (relative sensitivity RSD < 10%) even for severe matrix effects for most elements regardless of similarity in mass in the different cell modes. For Zn, As and Se no proper internal standard could be found, of the ones investigated.

  • 9.
    Liljegren, Gustav
    et al.
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Kemiska institutionen. Institutionen för materialkemi, Oorganisk kemi. Analytisk kemi.
    Forsgard, Niklas
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Kemiska institutionen. Institutionen för materialkemi, Oorganisk kemi. Analytisk kemi.
    Zettersten, Camilla
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Kemiska institutionen. Institutionen för materialkemi, Oorganisk kemi. Analytisk kemi.
    Pettersson, Jean
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Kemiska institutionen. Institutionen för materialkemi, Oorganisk kemi. Analytisk kemi.
    Svedberg, Malin
    Herranen, Merja
    Institutionen för materialkemi, Oorganisk kemi. Oorganisk kemi.
    Nyholm, Leif
    Institutionen för materialkemi, Oorganisk kemi. Oorganisk kemi.
    On-line electrochemically controlled solid-phase extraction interfaced to electrospray and inductively coupled plasma mass spectrometry2005Ingår i: The Analyst, nr 130, s. 1358-1368Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Electrochemically controlled solid-phase extractions of anions were interfaced on-line to electrospray mass spectrometry (ESI-MS) and inductively coupled plasma mass spectrometry (ICP-MS), using polypyrrole coated electrodes and a thin-layer electrochemical (EC) flow cell. The results indicate that electrochemically controlled solid-phase extraction (EC-SPE) can be used as a versatile potential controlled sample preparation technique for a range of anions and that the properties of the polypyrrole coatings can be modified by altering the electrodeposition conditions. In the present study, the influence of interfering anions (i.e., fluoride and sulfate), and the anion used during the electropolymerisation, on the bromide extraction recovery was investigated for EC-SPE interfaced to ICP-MS. The results of these experiments show that the interference due to the presence of similar concentrations of sulfate can be reduced when using a polypyrrole coating electropolymerised in the presence of bromide ions. Scanning electron microscopy (SEM) and atomic force microscopy (AFM) measurements were also used to study the morphology of the coatings, as well as the variations in the film thickness within the coatings. The effect of different desorption techniques on the bromide preconcentration factor in the ICP-MS on-line flow system was also examined. Stopped-flow desorption was found to give rise to significantly increased preconcentration factors in comparison with desorptions in flowing solutions. While the desorption efficiency depends on the type of desorption electrolyte (the electrolyte in which the desorption takes place), due to the competing influx of cations, the influence of the pH on the switching charge of the polypyrrole coating was found to be small, at constant ionic strength. To study the applicability of the EC-SPE technique with respect to real samples, investigations were also made with tap water samples spiked with different bromide concentrations. The results of these experiments, which were carried out using a modified thin-layer EC flow cell allowing in situ polymerisation of polypyrrole yielding a polymer plug covering the cross section of the channel, demonstrate that 3 uM concentrations of bromide could be detected in the tap water sample. This demonstrates that the extraction technique allows extractions of low concentrations of ions in the presence of significantly higher concentrations of other similar ions. The fact that the extraction and desorption steps are electrochemically controlled makes EC-SPE particularly well suited for inclusion in miniaturised lab-on-a-chip systems.

  • 10.
    Moberg, My
    et al.
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Kemiska institutionen, Avdelningen för analytisk kemi.
    Nilsson, Eva M.
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Kemiska institutionen, Avdelningen för analytisk kemi.
    Holmström, Sara J. M.
    Lundström, Ulla S.
    Pettersson, Jean
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Kemiska institutionen, Avdelningen för analytisk kemi.
    Markides, Karin E.
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Kemiska institutionen, Avdelningen för analytisk kemi.
    Fingerprinting metal-containing biomolecules after reductive displacement of iron by gallium and subsequent column-switched LC-ICPMS analysis applied on siderophores2004Ingår i: Analytical Chemistry, ISSN 0003-2700, E-ISSN 1520-6882, Vol. 76, nr 9, s. 2618-2622Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Column-switching liquid chromatography followed by low-resolution ICPMS was evaluated as a tool for speciation analysis of metal-containing biomolecules. The strategy was applied on siderophores, strong iron chelators of low molecular weight (M(w) < 1500). Prior to the LC-ICPMS analysis, reductive displacement of iron by gallium was performed using ascorbate as the reducing agent to increase the sensitivity. Different experimental conditions during the exchange reaction were tested using ferrichrysin and ferrichrome for evaluation. A reaction time of 30 min and a pH of 3.9 gave an exchange yield of 27 and 83% for ferrichrysin and ferrichrome, respectively. A gradient elution profile was also developed to separate gallium-chelated siderophores on a PGC column. Detection limits for standard solutions of ferrichrysin and ferrichrome in the low-nanomolar range were obtained by monitoring the gallium-69 isotope. The combined use of LC-ICPMS and LC-ESI-MS/MS was also evaluated as a tool to identify unknown metal complexes, here siderophores, in field soil solution samples.

  • 11.
    Morell, Arvid
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Radiologi.
    Lennmyr, Fredrik
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Anestesiologi och intensivvård.
    Jonsson, Ove
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Thoraxkirurgi.
    Tovedal, Thomas
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Anestesiologi och intensivvård.
    Pettersson, Jean
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - BMC, Analytisk kemi.
    Bergquist, Jonas
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - BMC, Analytisk kemi.
    Zemgulis, Vitas
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Thoraxkirurgi.
    Myrdal Einarsson, Gunnar
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Thoraxkirurgi.
    Thelin, Stefan
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Thoraxkirurgi.
    Ahlström, Håkan
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Radiologi.
    Bjørnerud, Atle
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Radiologi.
    Influence of blood/tissue differences in contrast agent relaxivity on tracer based MR perfusion measurements2015Ingår i: Magnetic Resonance Materials in Physics, Biology and Medicine, ISSN 0968-5243, E-ISSN 1352-8661, Vol. 28, nr 2, s. 135-147Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    PURPOSE:

    Perfusion assessment by monitoring the transport of a tracer bolus depends critically on conversion of signal intensity into tracer concentration. Two main assumptions are generally applied for this conversion; (1) contrast agent relaxivity is identical in blood and tissue, (2) change in signal intensity depends only on the primary relaxation effect. The purpose of the study was to assess the validity and influence of these assumptions.

    MATERIALS AND METHODS:

    Blood and cerebral tissue relaxivities r1, r2, and r2* for gadodiamide were measured in four pigs at 1.5 T. Gadolinium concentration was determined by inductively coupled plasma atomic emission spectroscopy. Influence of the relaxivities, secondary relaxation effects and choice of singular value decomposition (SVD) regularization threshold was studied by simulations.

    RESULTS:

    In vivo relaxivities relative to blood concentration [in s-1 mM-1 for blood, gray matter (GM), white matter (WM)] were for r1 (2.614 ± 1.061, 0.010 ± 0.001, 0.004 ± 0.002), r2 (5.088 ± 0.952, 0.091 ± 0.008, 0.059 ± 0.014), and r2* (13.292 ± 3.928, 1.696 ± 0.157, 0.910 ± 0.139). Although substantial, by a nonparametric test for paired samples, the differences were not statistically significant. The GM to WM blood volume ratio was estimated to 2.6 ± 0.9 by r1, 1.6 ± 0.3 by r2, and 1.9 ± 0.2 by r2*. Secondary relaxation was found to reduce the tissue blood flow, as did the SVD regularization threshold.

    CONCLUSION:

    Contrast agent relaxivity is not identical in blood and tissue leading to substantial errors. Further errors are introduced by secondary relaxation effects and the SVD regularization.

  • 12. Olsson, P.
    et al.
    Black, M.
    Capala, J.
    Coderre, Jeffrey
    Hartman, T.
    Makar, Michael
    Malmquist, J.
    Pettersson, J.
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Kemiska institutionen.
    Tilly, Nina
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för onkologi, radiologi och klinisk immunologi.
    Sjöberg, S.
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Kemiska institutionen.
    Carlsson, J.
    Uptake, toxicity and radiation effects of the boron compounds DAAC-1 and DAC-1 in cultured human glioma cells1998Ingår i: International Journal of Radiation Biology, ISSN 0955-3002, E-ISSN 1362-3095, Vol. 73, nr 1, s. 103-112Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    PURPOSE: To study the uptake, toxicity and radiation effects in vitro of a diol-amino acid-carborane (DAAC-1) and make comparisons with the previously studied diol-amine-carborane (DAC-1). MATERIALS AND METHODS: Toxicity and radiation effects were studied with clonogenic survival, uptake by measuring the cellular boron content and the subcellular distribution was investigated after organelle separation with centrifugation. The studied cell line was human glioma U343. RESULTS: DAAC-1 showed an accumulation of 1-1.5 times, compared with the culture medium, and was non-toxic up to 47 microg boron/ml. The accumulation of DAC-1 was about 90 times, but toxic effects were detectable already at the concentration 5 microg boron/ml. None of the compounds was localized in the cell nucleus. Following irradiation with thermal neutrons, DAC-1 was about 2.5 times more effective than DAAC-1 and about 4.9 times more effective than neutrons alone, at the survival level 0.2. The dose modifying factors, when compared with the neutron beam alone, were for both DAAC-1 and DAC-1 about 1.5 and about 5 when compared with 60Co-gamma-radiation. CONCLUSIONS: DAAC-1 was less toxic than DAC-1 but gave less accumulation of boron. Both substances gave significant boron-dependent cell inactivation when the test cells were exposed to thermal neutrons.

  • 13.
    Paraskova, Julia V.
    et al.
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - BMC.
    Jorgensen, Charlotte
    Reitzel, Kasper
    Pettersson, Jean
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - BMC, Analytisk kemi.
    Rydin, Emil
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - BMC.
    Sjöberg, Per J. R.
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - BMC, Analytisk kemi.
    Speciation of Inositol Phosphates in Lake Sediments by Ion-Exchange Chromatography Coupled with Mass Spectrometry, Inductively Coupled Plasma Atomic Emission Spectroscopy, and P-31 NMR Spectroscopy2015Ingår i: Analytical Chemistry, ISSN 0003-2700, E-ISSN 1520-6882, Vol. 87, nr 5, s. 2672-2677Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    A method for the detection and speciation of inositol phosphates (InsP(n)) in sediment samples was tested, utilizing oxalateoxalic acid extraction followed by determination by high-performance liquid chromatography coupled with tandem mass spectrometry (HPLCMS/MS) using electrospray ionization (ESI) in negative mode. The chromatographic separation was carried out using water and ammonium bicarbonate as mobile phase in gradient mode. Data acquisition under MS/MS was attained by multiple reaction monitoring. The technique provided a sensitive and selective detection of InsP(n) in sediment samples. Several forms of InsPn in the oxalateoxalic acid extracted sediment were identified. InsP(6) was the dominating form constituting 0.250 mg P/g DW (dry weight); InsP(5) and InsP(4) constituted 0.045 and 0.014 mg P/g DW, respectively. The detection limit of the LCESI-MS/MS method was 0.03 mu M InsPn, which is superior to the currently used method for the identification of InsPn, P-31 nuclear magnetic resonance spectroscopy (P-31 NMR). Additionally sample handling time was significantly reduced.

  • 14.
    Paraskova, Julia V.
    et al.
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - BMC.
    Jørgensen, Charlotte
    University of Southern Denmark.
    Reitzel, Kasper
    University of Southern Denmark.
    Pettersson, Jean
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - BMC.
    Rydin, Emil
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - BMC.
    Sjöberg, Per J.R.
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - BMC.
    Speciation of inositol phosphates in lake sediments by ion-exchange chromatography coupled with mass spectrometry, ICP-AES and 31P NMR spectroscopyManuskript (preprint) (Övrigt vetenskapligt)
  • 15.
    Pettersson, Jean
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - BMC, Analytisk kemi. Uppsala University.
    Procedure for the determination of n-octanol/water partition of boron-organic compounds1999Ingår i: ICP Information Newsletter, Vol. 25, s. 183-186Artikel i tidskrift (Refereegranskat)
  • 16.
    Pettersson, Mattias
    et al.
    Umea Univ, Dept Odontol, Prosthet Dent, Fac Med, Umea, Sweden.
    Pettersson, Jean
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - BMC, Analytisk kemi.
    Johansson, Anders
    Umea Univ, Dept Odontol, Mol Periodontol, Fac Med, Umea, Sweden.
    Molin Thorén, Margareta
    Umea Univ, Dept Odontol, Prosthet Dent, Fac Med, Umea, Sweden.
    Titanium release in peri-implantitis2019Ingår i: Journal of Oral Rehabilitation, ISSN 0305-182X, E-ISSN 1365-2842, Vol. 46, nr 2, s. 179-188Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Objectives: The aim of this study was to investigate the titanium (Ti) content of biopsies from patients with severe peri-implantitis or controls without Ti exposure.

    Background: Peri-implantitis is considered to be an infectious disease, but recent studies have shown that Ti can aggravate inflammation in combination with bacterial products. The Ti content of peri-implantitis and periodontitis (controls) tissue is unknown.

    Methods: Thirteen patients referred for peri-implantitis and eleven for periodontitis treatment were included in the study. Disease severity was obtained from dental records. Biopsies were taken from both groups and chemically analysed with inductively coupled plasma mass spectrometry for Ti content. Additionally, two patients with peri-implantitis and two with periodontitis were recruited and their biopsies were analysed microscopically with light microscopy, transmission electron microscopy and scanning electron microscopy with element analysis to investigate the presence of particulate Ti.

    Results: All patients lost one or more implants despite undergoing peri-implant or treatment. Peri-implantitis tissue contained significantly higher concentrations of Ti than control samples with a mean +/- SD of 98.7 +/- 85.6 and 1.2 +/- 0.9 mu g/g, respectively. Particulate metal was identified in peri-implantitis and control biopsies, but element analyses could confirm only the presence of Ti in peri-implantitis tissue.

    Conclusion: We showed that high contents of particulate and submicron Ti were present in peri-implantitis tissue. These high Ti contents in peri-implant mucosa can potentially aggravate inflammation, which might reduce the prognosis of treatment interventions.

  • 17.
    Pettersson, Mattias
    et al.
    Umea Univ, Prosthet Dent, Umea, Sweden.
    Pettersson, Jean
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - BMC, Analytisk kemi.
    Thoren, Margareta Molin
    Umea Univ, Prosthet Dent, Umea, Sweden.
    Johansson, Anders
    Umea Univ, Fac Med, Dept Odontol, Mol Periodontol, Umea, Sweden.
    Effect of cobalt ions on the interaction between macrophages and titanium2018Ingår i: Journal of Biomedical Materials Research. Part A, ISSN 1549-3296, E-ISSN 1552-4965, Vol. 106, nr 9, s. 2518-2530Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Inflammation and bone reduction around dental implants are described as peri-implantitis and can be caused by an inflammatory response against bacterial products and toxins. Titanium (Ti) forms aggregates with serum proteins, which activate and cause release of the cytokine interleukin (IL-1) from human macrophages. It was hypothesized that cobalt (Co) ions can interact in the formation of pro-inflammatory aggregates, formed by titanium. To test this hypothesis, we differentiated THP-1 cells into macrophages and exposed them to Ti ions alone or in combination with Co ions to investigate if IL-1 release and cytotoxicity were affected. We also investigated aggregate formation, cell uptake and human biopsies with inductively coupled plasma atomic emission spectroscopy and electron microscopy. Co at a concentration of 100 mu M neutralized the IL-1 release from human macrophages and affected the aggregate formation. The aggregates formed by Ti could be detected in the cytosol of macrophages. In the presence of Co, the Ti-induced aggregates were located in the cytosol of the cultured macrophages, but outside the lysosomal structures. It is concluded that Co can neutralize the Ti-induced activation and release of active IL-1 from human macrophages in vitro. Also, serum proteins are needed for the formation of metal-protein aggregates in cell medium. Furthermore, the structures of the aggregates as well as the localisation after cellular uptake differ if Co is present in a Ti solution. Phagocytized aggregates with a similar appearance seen in vitro with Ti present, were also visible in a sample from human peri-implant tissue.

  • 18.
    Recknagel, Sebastian
    et al.
    BAM Bundesanstalt für Materialforschung und -prüfung, Berlin, Germany.
    Richter, Silke
    BAM Bundesanstalt für Materialforschung und -prüfung, Berlin, Germany.
    Reinholdsson, Fredrik
    Ovako Hofors AB, Hofors, Sweden.
    Pettersson, Jean
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - BMC, Analytisk kemi.
    Gustavsson, Ingemar
    Gustavsson Consulting, Stockholm, Sweden.
    An Intercomparison Study of Analytical Methods for the Determination of Magnesium in Low Alloy Steel2012Ingår i: Steel Research International, ISSN 1611-3683, E-ISSN 1869-344X, Vol. 83, nr 2, s. 146-149Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    In an intercomparison study three low alloy steel materials were analyzed on their content of the trace element Mg, and five different analytical techniques were used, namely spark-OES, inductively coupled plasma optical emission spectrometry (ICP-OES), inductively coupled plasma time of flight mass spectrometry (ICP-TOFMS), inductively coupled plasma quadrupole mass spectrometry (ICP-QMS), and glow discharge mass spectrometry (GD-MS). Solid steel discs were used for analysis with spark-OES and GD-MS. For the analyses with ICP-OES, ICP-TOFMS, and ICP-QMS steel chips were wet-digested in aqua regia, and the wet-digestion was performed either in polypropylene tubes placed in a heating block or in Teflon pressure vessels using a microwave assisted system. The Mg concentrations obtained for the three steel materials were: 2.0, 2.8, and 10.3 mu gg-1, respectively, and the spread in results was acceptable, giving RSD values in the range of 20-30%.

  • 19.
    Rehnlund, David
    et al.
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - Ångström, Oorganisk kemi.
    Lindgren, Fredrik
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - Ångström, Strukturkemi.
    Bohme, Solveig
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - Ångström, Oorganisk kemi.
    Nordh, Tim
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - Ångström, Strukturkemi. Uppsala Univ, Angstrom Lab, Dept Chem, Box 538, SE-75121 Uppsala, Sweden..
    Zou, Yiming
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - Ångström, Oorganisk kemi.
    Pettersson, Jean
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - BMC, Analytisk kemi.
    Bexell, Ulf
    Dalarna Univ, Sch Technol & Business Studies Mat Technol, Falun, Sweden..
    Boman, Mats
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - Ångström, Oorganisk kemi.
    Edström, Kristina
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - Ångström, Strukturkemi.
    Nyholm, Leif
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - Ångström, Oorganisk kemi.
    Lithium trapping in alloy forming electrodes and current collectors for lithium based batteries2017Ingår i: Energy & Environmental Science, ISSN 1754-5692, E-ISSN 1754-5706, Vol. 10, nr 6, s. 1350-1357Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Significant capacity losses are generally seen for batteries containing high-capacity lithium alloy forming anode materials such as silicon, tin and aluminium. These losses are generally ascribed to a combination of volume expansion effects and irreversible electrolyte reduction reactions. Here, it is shown, based on e.g. elemental analyses of cycled electrodes, that the capacity losses for tin nanorod and silicon composite electrodes in fact involve diffusion controlled trapping of lithium in the electrodes. While an analogous effect is also demonstrated for copper, nickel and titanium current collectors, boron-doped diamond is shown to function as an effective lithium diffusion barrier. The present findings indicate that the durability of lithium based batteries can be improved significantly via proper electrode design or regeneration of the used electrodes.

  • 20.
    Rehnlund, David
    et al.
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - Ångström, Oorganisk kemi.
    Lindgren, Fredrik
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Fysiska sektionen, Institutionen för fysik och astronomi, Molekyl- och kondenserade materiens fysik.
    Pettersson, Jean
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - BMC, Analytisk kemi.
    Edström, Kristina
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - Ångström, Strukturkemi.
    Nyholm, Leif
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - Ångström, Oorganisk kemi.
    Lithium Trapping in Alloy forming Electrodes and Current Collectors for Lithium based Batteries2018Konferensbidrag (Övrigt vetenskapligt)
    Abstract [en]

    The next generation of lithium based batteries can be expected to be based on lithium alloy forming anode materials which can store up to ten times more charge than the currently used graphite anodes. This increase in the charge storage capability has motivated significant research towards the commercialization of anode materials such as Si, Sn and Al. These alloy forming anode materials are, however, known to exhibit significant capacity losses during cycling. This is typically ascribed to the volume expansion associated with the formation of the lithium alloys (the volume expansion is e.g. about 280 % for Li3.75Si) resulting in electrode pulverization as well as continuous solid electrolyte interphase (SEI) layer formation [1-3]. While significant progress has been made to decrease the volume expansion problems by the use of e.g. nanoparticles, nanorods and thin films, and/or capacity limitations [1-3], capacity losses are still generally seen [4,5]. This and previously published data suggest that the phenomenon may be due to another effect and that this in fact could stem from lithium trapping in the electrodes [6-8].

    In the present work it is demonstrated (based on e.g. elemental analyses of cycled Sn, Al and Si electrodes) that lithium trapping can account for the capacity losses seen when alloy forming anode materials are cycled versus lithium electrodes, see Figure 1. It is shown that small amounts of elemental lithium are trapped within the electrode material during the cycling as a result of a two-way diffusion process [8] causing the lithium to move into the bulk material even during the delithiation step. This phenomenon, which can be explained by the lithium concentration profiles in the electrodes, makes a complete delithiation process very time consuming. As a result of the lithium trapping effect, the lithium concentration in the electrode increases continuously during the cycling. The experimental results also show that a similar effect can be seen also for commonly used current collector metals such as Cu, Ni and Ti. The latter means that these metals are unsuitable as current collector materials for lithium alloy forming materials in the absence of a thin layer of boron doped diamond serving as a lithium diffusion barrier layer [8].

    References

    1    M. N. Obrovac and V. L. Chevrier, Chem. Rev., 2014, 114, 11444.

    2    X. Su, Q. Wu, J. Li, X. Xiao, A. Lott, W. Lu, B. W. Sheldon and J. Wu, Adv. Energy Mater., 2014, 4, 1300882.

    3    J. R. Szczech and S. Jin, Energy Environ. Sci., 2011, 4, 56.

    4    G. Zheng, S. W. Lee, Z. Liang, H-W. Lee, K. Yan, H. Yao, H. Wang, W. Li, S. Chu and Y. Cui, Nat. Nanotechnol., 2014, 9, 618.

    5    K. Yan, H-W. Lee, T. Gao, G. Zheng, H. Yao, H. Wang, Z. Lu, Y. Zhou, Z. Liang, Z. Liu, S. Chu and Y. Cui, Nano Letters, 2014, 14, 6016.

    6    G. Oltean, C-W. Tai, K. Edström and L. Nyholm, J. Power Sources, 2014, 269, 266.

    7    A. L. Michan, G. Divitini, A. J. Pell, M. Leskes, C. Ducati and C. P. Grey, J. Am. Chem. Soc., 2016, 138, 7918.

    8    D. Rehnlund, F. Lindgren, S. Böhme, T. Nordh, Y. Zou, J. Pettersson, U. Bexell, M. Boman, K. Edström and L. Nyholm, Energy Environ. Sci., 10 (2017) 1350.

     

  • 21.
    Rehnlund, David
    et al.
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - Ångström, Oorganisk kemi.
    Pettersson, Jean
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - BMC, Analytisk kemi.
    Edström, Kristina
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - Ångström, Strukturkemi.
    Nyholm, Leif
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - Ångström, Oorganisk kemi.
    Lithium trapping in microbatteries based on lithium- and Cu2O-coated copper nanorods2018Ingår i: ChemistrySelect, E-ISSN 2365-6549, Vol. 3, nr 8, s. 2311-2314Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Microbatteries based on three-dimensional (3D) electrodes composed of thin films of Li and Cu2O coated on Cu nanorod current collectors by electrodeposition and spontaneous oxidation, respectively, are described and characterised electrochemically. High-resolution scanning electron microscopy (HR-SEM) data indicate that the Li electrodeposition resulted in a homogenous coverage of the Cu nanorods and elemental analyses were also used to determine the amount of lithium in the Li-coated electrodes. The results show that 3D Cu2O/Cu electrodes can be cycled versus 3D Li/Cu electrodes but that the capacity decreased during the cycling due to Li trapping in the Cu current collector of the 3D Li/Cu electrode. These findings highlight the problem of using copper current collectors together with metallic lithium as the formation of a solid solution yields considerable losses of electroactive lithium and hence capacity.

  • 22. Sikk, K.
    et al.
    Haldre, S.
    Aquilonius, Sten-Magnus
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för neurovetenskap, Neurologi.
    Asser, A.
    Paris, M.
    Roose, A.
    Pettersson, Jean
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - BMC, Analytisk kemi.
    Eriksson, S. -L
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - BMC, Analytisk kemi.
    Bergquist, Jonas
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - BMC, Analytisk kemi.
    Taba, P.
    Manganese-induced parkinsonism in methcathinone abusers: bio-markers of exposure and follow-up2013Ingår i: European Journal of Neurology, ISSN 1351-5101, E-ISSN 1468-1331, Vol. 20, nr 6, s. 915-920Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Background and purpose Methcathinone abuse is a new cause of manganism. The psychostimulant is prepared from pseudoephedrine using potassium permanganate as an oxidant. We describe the clinical, biological, neuroimaging characteristics and follow-up results in a large Estonian cohort of intravenous methcathinone users. Methods During 20062012 we studied 38 methcathinone abusers with a mean age of 33years. Subjects were rated by the Unified Parkinson's Disease Rating Scale (UPDRS), Hoehn and Yahr (HY), and Schwab and England (SE) rating scales. Twenty-four cases were reassessed 970 (20 +/- 15)months after the initial evaluation. Manganese (Mn) in plasma and hair was analysed by inductively coupled plasma-atom emission spectrometry. Magnetic resonance imaging (MRI) was performed in 11, and single-photon emission computed tomography (SPECT) with iodobenzamide (IBZM) in eight subjects. Results The average total UPDRS score was 43 +/- 21. The most severely affected domains in UPDRS Part III were speech and postural stability, the least affected domain was resting tremor. At follow-up there was worsening of HY and SE rating scales. Subjects had a higher mean level of Mn in hair (2.9 +/- 3.8ppm) than controls (0.82 +/- 1.02ppm), P=0.02. Plasma Mn concentrations were higher (11.5 +/- 6.2ppb) in active than in former users (5.6 +/- 1.8ppb), P=0.006. Active methcathinone users had increased MRI T1-signal intensity in the globus pallidus, substantia nigra and periaquaductal gray matter. IBZM-SPECT showed normal symmetric tracer uptake in striatum. Conclusion Methcathinone abusers develop a distinctive hypokinetic syndrome. Though the biomarkers of Mn exposure are characteristic only of recent abuse, the syndrome is not reversible.

  • 23. Sikk, K.
    et al.
    Haldre, S.
    Aquilonius, Sten-Magnus
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för neurovetenskap, Neurologi.
    Petterson, Jean
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - BMC, Analytisk kemi.
    Eriksson, S. -L
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - BMC.
    Bergquist, Jonas
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - BMC, Analytisk kemi.
    Tonnov, A.
    Taba, P.
    Manganese-induced parkinsonism in methcathinone abusers: biomarkers of exposure and follow-up2012Ingår i: European Journal of Neurology, ISSN 1351-5101, E-ISSN 1468-1331, Vol. 19, s. 667-667Artikel i tidskrift (Övrigt vetenskapligt)
  • 24.
    Xu, Xingxing
    et al.
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Fasta tillståndets elektronik.
    Makaraviciute, Asta
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Fasta tillståndets elektronik.
    Pettersson, Jean
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - BMC, Analytisk kemi.
    Zhang, Shi-Li
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Fasta tillståndets elektronik.
    Nyholm, Leif
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - Ångström, Oorganisk kemi.
    Zhang, Zhen
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Fasta tillståndets elektronik.
    Revisiting the factors influencing gold electrodes prepared using cyclic voltammetry2019Ingår i: Sensors and actuators. B, Chemical, ISSN 0925-4005, E-ISSN 1873-3077, Vol. 283, s. 146-153Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Gold is widely used as the electrode material in different chemi- and biosensing applications while cyclic voltammetry (CV) in sulfuric acid solutions is a commonly employed method for gold surface preparation and characterization. However, as shown herein, chloride leakage from the Ag/AgCl/sat. KCl reference electrode and platinum dissolution from the platinum counter electrode can severely compromise the reproducibility and hence the reliability of the prepared gold electrodes. The aim of this work is to obtain a comprehensive understanding of the separate and interdependent effects of the aforementioned factors on the voltammetric behavior of microfabricated polycrystalline gold electrodes. It is shown that the leakage of chloride gives rise to etching of both the gold working and the platinum counter electrodes and that the chloride concentration has a strong influence on the ratio between the obtained gold and platinum concentrations in the electrolyte. The dissolved gold and platinum are then re-deposited on the gold electrode on the cathodic voltammetric scan, changing the structure and properties of the electrode. It is also demonstrated that the changes in the properties of the gold electrode are determined by the ratio between the co-deposited platinum and gold rather than the absolute amount of platinum deposited on the gold electrode. In addition, the chloride and sulfate adsorption behavior on the gold electrode is carefully investigated. It is proposed that redox peaks due to the formation ofthe corresponding Au(I) complexes can be seen in the double layer region of the voltammogram. The results show that the chloride leakage from the reference electrode needs to be carefully controlled and that platinum counter electrodes should be avoided when developing gold sensing electrodes. The present comprehensive understanding of the electrochemical performance of gold electrodes prepared using CV should be of significant importance in conjunction with both fundamental investigations and practical applications.

  • 25.
    Xu, Xingxing
    et al.
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Fasta tillståndets elektronik. Uppsala University.
    Makaraviciute, Asta
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Fasta tillståndets elektronik.
    Pettersson, Jean
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - BMC, Analytisk kemi.
    Zhang, Shi-Li
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Fasta tillståndets elektronik.
    Zhang, Zhen
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Fasta tillståndets elektronik.
    Considerations for the Cyclic Voltammetry of Gold in Sulfuric Acid Solutions2018Konferensbidrag (Övrigt vetenskapligt)
    Abstract [en]

    A comprehensive understanding of the cyclic voltammetry (CV) for gold surfaces is essential for advanced applications. In the present study, a series of experiments were designed to investigate CV for gold under different experimental conditions when using a conventional configuration of a Ag/AgCl/sat. KCl reference electrode and a platinum wire counter electrode. The interferences introduced by the configuration were reflected in the three fingerprint regions of the voltammograms. It was found that the shape of the voltammograms was less reproducible at a lower sample volume when the cycle number was increased. This observation could be explained by different concentrations of Cl- leaking from the reference electrode and platinum dissolved from the counter electrode. The reproducibility of the gold oxidation and reduction (Ox/Re) region in the voltammograms was improved when gold dissolution and re-deposition caused by Cl- leakage was eliminated by using a bridge. In the hydrogen evolution and oxidation reactions (HER/HOR) region the catalytic performance of the gold electrode could be minimized by replacing the platinum counter electrode with a graphite rod. Alternatively, it could be enhanced by increasing the surface ratio of the co-deposited platinum to gold. In the electric double layer (EDL) region, peaks dependent on the concentrations of Cl- and SO42- were observed. To account for the occurrence of these peaks, a new mechanism based on the formation of neutral gold (I) complexes at very low Au+ concentrations, was proposed. 

  • 26.
    Zanni, Giulia
    et al.
    Karolinska Univ Hosp, Karolinska Inst, Dept Womens & Childrens Hlth, Stockholm, Sweden.;Univ Gothenburg, Sahlgrenska Acad, Ctr Brain Repair & Rehabil, Inst Neurosci & Physiol, Gothenburg, Sweden..
    Michno, Wojciech
    Univ Gothenburg, Sahlgrenska Acad, Inst Neurosci & Physiol, Dept Psychiat & Neurochem, Molndal, Sweden.;Sahlgrens Univ Hosp, Clin Neurochem Lab, Molndal, Sweden..
    Di Martino, Elena
    Karolinska Univ Hosp, Karolinska Inst, Dept Womens & Childrens Hlth, Stockholm, Sweden..
    Tjärnlund-Wolf, Anna
    Univ Gothenburg, Sahlgrenska Acad, Ctr Brain Repair & Rehabil, Inst Neurosci & Physiol, Gothenburg, Sweden..
    Pettersson, Jean
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - BMC, Analytisk kemi.
    Mason, Charlotte Elizabeth
    Karolinska Univ Hosp, Karolinska Inst, Dept Womens & Childrens Hlth, Stockholm, Sweden..
    Hellspong, Gustaf
    Karolinska Univ Hosp, Karolinska Inst, Dept Womens & Childrens Hlth, Stockholm, Sweden..
    Blomgren, Klas
    Karolinska Univ Hosp, Karolinska Inst, Dept Womens & Childrens Hlth, Stockholm, Sweden.;Karolinska Univ Hosp, Dept Pediat Oncol, Stockholm, Sweden..
    Hanrieder, Jorg
    Univ Gothenburg, Sahlgrenska Acad, Inst Neurosci & Physiol, Dept Psychiat & Neurochem, Molndal, Sweden.;Sahlgrens Univ Hosp, Clin Neurochem Lab, Molndal, Sweden.;Chalmers, Dept Chem & Chem Engn, Gothenburg, Sweden.;UCL, Inst Neurol, Dept Mol Neurosci, London WC1E 6BT, England..
    Lithium Accumulates in Neurogenic Brain Regions as Revealed by High Resolution Ion Imaging2017Ingår i: Scientific Reports, ISSN 2045-2322, E-ISSN 2045-2322, Vol. 7, artikel-id 40726Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Lithium (Li) is a potent mood stabilizer and displays neuroprotective and neurogenic properties. Despite extensive investigations, the mechanisms of action have not been fully elucidated, especially in the juvenile, developing brain. Here we characterized lithium distribution in the juvenile mouse brain during 28 days of continuous treatment that result in clinically relevant serum concentrations. By using Time-of-Flight Secondary Ion Mass Spectrometry-(ToF-SIMS) based imaging we were able to delineate temporospatial lithium profile throughout the brain and concurrent distribution of endogenous lipids with high chemical specificity and spatial resolution. We found that Li accumulated in neurogenic regions and investigated the effects on hippocampal neurogenesis. Lithium increased proliferation, as judged by Ki67-immunoreactivity, but did not alter the number of doublecortin-positive neuroblasts at the end of the treatment period. Moreover, ToF-SIMS revealed a steady depletion of sphingomyelin in white matter regions during 28d Li-treatment, particularly in the olfactory bulb. In contrast, cortical levels of cholesterol and choline increased over time in Li-treated mice. This is the first study describing ToF-SIMS imaging for probing the brain-wide accumulation of supplemented Li in situ. The findings demonstrate that this technique is a powerful approach for investigating the distribution and effects of neuroprotective agents in the brain.

  • 27.
    Zhou, Y.
    et al.
    Royal Inst Technol, Sch Elect Engn, Dept Fus Plasma Phys, S-10405 Stockholm, Sweden..
    Bergsaker, H.
    Royal Inst Technol, Sch Elect Engn, Dept Fus Plasma Phys, S-10405 Stockholm, Sweden..
    Bykov, I.
    Royal Inst Technol, Sch Elect Engn, Dept Fus Plasma Phys, S-10405 Stockholm, Sweden..
    Petersson, P.
    Royal Inst Technol, Sch Elect Engn, Dept Fus Plasma Phys, S-10405 Stockholm, Sweden..
    Possnert, Göran
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, För teknisk-naturvetenskapliga fakulteten gemensamma enheter, Tandemlaboratoriet. Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Fysiska sektionen, Institutionen för fysik och astronomi, Tillämpad kärnfysik.
    Likonen, J.
    VTT Tech Res Ctr Finland, POB 1000, FIN-02044 Espoo, Finland..
    Pettersson, Jean
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - BMC, Analytisk kemi. Culham Sci Ctr, CCFE, Abingdon OX14 3DB, Oxon, England..
    Koivuranta, S.
    VTT Tech Res Ctr Finland, POB 1000, FIN-02044 Espoo, Finland..
    Widdowson, A. M.
    Proceedings 25th IAEA Fus Energy Conf 2014, St Petersburg, Russia..
    Microanalysis of deposited layers in the inner divertor of JET with ITER-like wall2017Ingår i: NUCLEAR MATERIALS AND ENERGY, ISSN 2352-1791, Vol. 12, nr SI, s. 412-417Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    In JET with ITER-like wall, beryllium eroded in the main chamber is transported to the divertor and deposited mainly at the horizontal surfaces of tiles 1 and 0 (high field gap closure, HFGC). These surfaces are tungsten coated carbon fibre composite (CFC). Surface sampleswere collected following the plasma operations in 2011-2012 and 2013-2014 respectively. The surfaces, as well as polished cross sections of the deposited layers at the surfaces have been studied with micro ion beam analysis methods (mu-IBA). Deposition of Beand other impurities, and retention of D is microscopically inhomogeneous. Impurities and trapped deuterium accumulate preferentially in cracks, pits and depressed regions, and at the sides of large pits in the substrate (e.g. arc tracks where the W coating has been removed). With careful overlaying of mu-NRA elemental maps with optical microscopy images, it is possible to separate surface roughness effects from depth profiles at microscopically flat surface regions.

1 - 27 av 27
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