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  • 101.
    Linden, T., Ljunglöf, A., Kula, M-R. and Thömmes, J.
    Uppsala University, Centre for Surface Biotechnology.
    Visualizing two-component protein diffusion in porous adsorbents by confocal scanning laser microscopy1999In: Biotechnol. Bioeng., Vol. 65, no 2, p. 622-630Article in journal (Refereed)
  • 102.
    Ljunglöf, A. and Hjorth, R.
    Uppsala University, Centre for Surface Biotechnology.
    Confocal microscopy as a tool for studying protein adsorption to chromatographic matrices1996In: J. Chromatogr. A, Vol. 743, p. 75-83Article in journal (Refereed)
  • 103.
    Ljunglöf, A. and Thömmes, J.
    Uppsala University, Centre for Surface Biotechnology.
    Visualising intraparticle protein transport in porous adsorbents by confocal microscopy1998In: J. Chromatogr. A, Vol. 813, p. 387-395Article in journal (Refereed)
  • 104.
    Ljunglöf, A., Bergvall, P., Bhikhabhai, R. and Hjorth, R.
    Uppsala University, Centre for Surface Biotechnology.
    Direct visualization of plasmid DNA in individual chromatography adsorbent particles by confocal scanning laser microscopy1999In: J. Chromatogr. A, Vol. 844, p. 129-135Article in journal (Refereed)
  • 105.
    Lomniczi B., Wehmann E., Herczeg J., Ballagi-Pordany, A., Kaleta, E.F., Werner, O., Meulemans, G., Jorgensen, P.H., Mante, A.P., Gielkens, A.L., Capua, I., and Damoser, J.
    Uppsala University, Centre for Surface Biotechnology.
    Newcastle disease outbreaks in recent years in western Europe were caused by an old (VI) and a novel genotype (VII)1998In: Arch Virol, Vol. 143, no 1, p. 49-64Article in journal (Refereed)
  • 106.
    Luo, Q., Andrade, J.D. and Caldwell, K.D.
    Uppsala University, Centre for Surface Biotechnology.
    Thin Layer Ion-Exchange Chromatography of Proteins1998In: J. Chrom. A, Vol. 816, p. 97-105Article in journal (Refereed)
  • 107.
    Malmsten, M., Xing, K. and Ljunglöf, A.
    Uppsala University, Centre for Surface Biotechnology.
    Confocal microscopy studies of trypsin immobilization on porous glycidyl methacrylate beads1999In: J. Colloid Interface Sci., Vol. 220, p. 436-442Article in journal (Refereed)
  • 108.
    Manta, C
    et al.
    Uppsala University, Centre for Surface Biotechnology.
    Ovsejevi, K
    Betancor, L
    Grazu, V
    Batistoni, J
    Batista-Viera, F
    Carlsson, J
    Introduction of thiol-reactive structures on to soluble and insoluble proteins2000In: BIOTECHNOLOGY AND APPLIED BIOCHEMISTRY, ISSN 0885-4513, Vol. 31, p. 231-237Article in journal (Refereed)
    Abstract [en]

    When proteins containing disulphide groups were oxidized with magnesium monoperoxyphthalate at acidic pH, they acquired the property of binding thiol compounds. This was the case with the insoluble protein keratin, chosen for having a large number of disu

  • 109.
    M.E., Schimpf and K.D. Caldwell
    Uppsala University, Centre for Surface Biotechnology.
    Electrical Field-Flow Fractionation for Colloid and Particle Analysis1995In: American Laboratory, p. 64-68Article in journal (Refereed)
  • 110.
    Neff, J. and Caldwell, K.D.
    Uppsala University, Centre for Surface Biotechnology.
    Surface Modification of Biomaterials.1999In: A. von Recum, (ed.), Handbook of Biomaterials, Taylor & Francis, Philadelphia , 1999, p. 201-226Chapter in book (Other scientific)
  • 111.
    Neff, J.A., Caldwell, K.D. and Tresco, P.A.
    Uppsala University, Centre for Surface Biotechnology.
    A Novel Method for Surface Modification to Direct Cell Behavior1998In: J. Biomed. Mat. Res., Vol. 40, p. 511-519Article in journal (Refereed)
  • 112.
    Nowotny N., Bascunana C.R., Ballagi-Pordany A., Gavier-Widen, D., Uhlen, M. and Belak, S.
    Uppsala University, Centre for Surface Biotechnology.
    Phylogenetic analysis of rabbit haemorrhagic disease and European brown hare syndrome viruses by comparison of sequences from the capsid protein gene1997In: Arch Virol, Vol. 142, no 4, p. 657-673Article in journal (Refereed)
  • 113.
    Oscarsson, S.
    Uppsala University, Centre for Surface Biotechnology.
    Surface Functionalisation, Orientation, Confirmation and Positioning of Macromolecules at the Nanometer Scale2002In: International Journal of Nonlinear Sciences and Numerical Simulations, p. 747-749Article in journal (Refereed)
  • 114.
    Oscarsson, S.
    et al.
    Uppsala University, Centre for Surface Biotechnology.
    Batista-Viera, F.
    Thiophilic Interaction Chromatography2002In: Biochromatography, Chapter 11, London and New York: Taylor and Francis , 2002, p. 295-306Chapter in book (Other scientific)
  • 115.
    Oscarsson.S,
    Uppsala University, Centre for Surface Biotechnology.
    Methods of Protheic Analysis by Chromatography and AFM1995In: 2: nd Meeting and Seminar on: Ceramics,Cells and Tissues, 1995, (Ed. A.Ravaglioli, and Krajewski,A.), Gruppo editoriale Faenza editrice., 1995, p. 146-153Conference paper (Other scientific)
  • 116.
    Ovsejevi, K., Brena, B., Batista-Viera, F. and Carlsson, J.
    Uppsala University, Centre for Surface Biotechnology.
    Immobilization of b-galactosidase on thiolsulfonate-agarose1995In: Enzyme and Microb. Technol., Vol. 17, p. 151-156Article in journal (Refereed)
  • 117.
    Pathmasiri, Wimal
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Pharmacy, Department of Medicinal Chemistry, Division of Pharmacognosy.
    el-Seedi, Hesham R
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Pharmacy, Department of Medicinal Chemistry, Division of Pharmacognosy.
    Han, Xiao
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Physical and Analytical Chemistry, Surface Biotechnology, Centre for Surface Biotechnology.
    Janson, Jan-Christer
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Physical and Analytical Chemistry, Surface Biotechnology, Centre for Surface Biotechnology.
    Huss, Ulrika
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Pharmacy, Department of Medicinal Chemistry, Division of Pharmacognosy.
    Bohlin, Lars
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Pharmacy, Department of Medicinal Chemistry, Division of Pharmacognosy.
    Aryl ketones from Acronychia pedunculata with cyclooxygenase-2 inhibitory effects2005In: Chemistry & biodiversity, ISSN 1612-1872, Vol. 2, no 4, p. 463-469Article in journal (Refereed)
    Abstract [en]

    1-[2,4-Dihydroxy-6-methoxy-3,5-bis(3-methylbut-2-en-1-yl)phenyl]ethanone (1), and a new aryl ketone, named acrovestenol (2), were isolated as cyclooxygenase-2 (COX-2) inhibitory principles from a CH2Cl2 extract of the bark of Acronychia pedunculata by a bioassay-guided fractionation procedure. Compound 2 inhibited COX-2 with an IC50 value of 142.0+/-2.15 microM, compared to the COX-2 inhibitory reference compound NS-398 with an IC50 value of 11.3+/-1.12 microM. Compound 1 inhibited COX-2-catalyzed PG biosynthesis with 68% at a concentration of 500 microM. The structures were determined by UV, IR, and 1D- and 2D-NMR, including TOCSY, HSQC-DEPT, and HMBC, and MS investigations.

  • 118.
    Pavlovic, E.
    et al.
    Uppsala University, Centre for Surface Biotechnology.
    Quist, A. P.
    Gelius, U.
    Oscarsson, S.
    Development of a flow method for surface functionalization at room temperature and ambient pressure2002In: J. Colloid Interface Science, Vol. 254, p. 200-203Article in journal (Refereed)
  • 119.
    Persson, L.
    et al.
    Uppsala University, Centre for Surface Biotechnology.
    Whitlow, H. J.
    El Bouanani, M.
    Hult, M.
    Andersson, M.
    Bubb, I. F.
    Johnston, P. N.
    Walker, S. R.
    Cohen, D. D.
    Dytlewski, N.
    Zaring, C.
    Östling, M.
    Separation of mass overlapped recoil spectometry data using Ryan and Jamieson's dynamic analysis method2001In: Nuclear Instr. and Meth. B, Vol. 179, p. 403-411Article in journal (Refereed)
  • 120.
    Porath, Jerker
    Uppsala University, Centre for Surface Biotechnology.
    Strategy for Differential Protein Affinity Chromatrography2001In: IJBC, Vol. 6, no 1, p. 51-78Article in journal (Refereed)
  • 121.
    Pålsgard, Eva
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Physical and Analytical Chemistry, Surface Biotechnology, Centre for Surface Biotechnology.
    Dijksterhuis, G
    The sensory perception of flavor release as a function of texture and time: A time intensity study using flavored gels2000In: Journal of sensory studies, ISSN 0887-8250, E-ISSN 1745-459X, Vol. 15, no 3, p. 347-359Article in journal (Refereed)
    Abstract [en]

    The focus in this study was to study time intensity (TI) methodology and procedures of getting thesensory panel acquainted with this technique. By means of a descriptive profiling exercise effects ofaltering the structure of a beta-lactoglobulin gel, laced with banana aroma on the perception of bananaflavor were obtained and a suitable attribute for TI was selected. Samples made up by protein, without any fat are not ideal for a TI study of flavor release because of the fast release of aroma. However, although the concentration of banana aroma was identical in the four groups of gels the intensity was perceived as different. This was reflected in the descriptive profiling as well as in the dynamic study.The TI study showed that it is important to minimize distractive, noncrucial information during theexercise. The assessors had different abilities to connect with the dynamic data acquisition procedure and training made the assessments more congruent. The results also indicate a relationship betweenthe appearance of the TI-curve and the score of the total banana aftertaste.

  • 122.
    Pålsgård, Eva
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Physical and Analytical Chemistry, Surface Biotechnology, Centre for Surface Biotechnology.
    Lindh, U
    Roomans, G M
    Grime, G W
    Tetrahydrofuran Freeze-Substituted Pancreas Analysed by Nuclear Microscopy and X-ray Microanalysis1996In: Journal of trace and microprobe techniques (Print), ISSN 0733-4680, E-ISSN 1532-2270, Vol. 14, no 3, p. 615-631Article in journal (Refereed)
    Abstract [en]

    A new freeze-substitution method using tetrahydrofuran (THF) as organic solvent was tested in the preparation of pancreas for determination of elemental content and distribution. Particle induced X-rayemission (PIXE) allowed analysis at the cellular level and X-ray microanalysis (EPMA) at the subcellular level. Using PIXE allowed detection of Zn, Ca and Fe, not detectable in the EPMA spectra. The ratios of Cl and K to P and to S obtained from analysis using both PIXE and EPMA agreed well. A good preservation of the in vivo ionic content was manifested in high K to Na and K to Cl ratios.

  • 123.
    Pålsgård, Eva
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Physical and Analytical Chemistry, Surface Biotechnology, Centre for Surface Biotechnology.
    Ugarte, M
    Rajta, I
    Grime, GW
    The role of zinc in the dark-adapted retina studied directly using microPIXE2001In: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, ISSN 0168-583X, E-ISSN 1872-9584, Vol. 181, p. 489-492Article in journal (Refereed)
    Abstract [en]

    Zinc deficiency is known to cause night blindness, which can be reverted by the administration of zinc.The exact function of zinc is not understood but it is likely that zinc plays a unique role in thephototransduction process and/or photoreceptor/retinal pigment interaction. The localisation of free (histochemically reactive) zinc within the photoreceptors changes with light stimulation [Exp. Eye Res. (1999) 459]. In the dark-adapted retina chelatable zinc can be visualised primarily in the perikarya, whereas after photostimulation free zinc is mainly associated with the inner segments. This variation might be due to (1) a translocation of zinc from the perikarya to the inner segments, (2) a change in thestate of zinc (from a free to a bound form, histochemically and non-histochemically reactive, respectively), or (3) zinc influx and/or efflux across the plasma membrane. MicroPIXE was used to analyse the total (free and bound) zinc distribution in each retinal layer and a difference was found between light- and dark-adapted retinas (preliminary data). Following light stimulation the most pronounced difference in the zinc concentration was found in the inner segments of the photoreceptors and the layer containing the photoreceptors perikarya (outer nuclear layer).

  • 124.
    Q. Zhao, I. Gottschalk, J. Carlsson, L.-E. Arvidsson, S. Oscarsson, A. Medin, B. Ersson and J.-C. Janson
    Uppsala University, Centre for Surface Biotechnology.
    Preparation and Purification of an End to End Coupled mEGF-Dextran Conjugate1997In: Bioconjugate Chemistry, Vol. 8, no 6, p. 927-934Article in journal (Refereed)
  • 125.
    Q. Zhao, V. Tolmachev, J. Carlsson, H. Lundqvist, J. Sundin, J.-C. Janson and A. Sundin
    Uppsala University, Centre for Surface Biotechnology.
    Influence of conjugation to dextran on the pharmacokinetics of mouse epidermal growth factor (EGF)1998In: Tumor Biology, Vol. 19, no 2, p. 45-Article in journal (Refereed)
  • 126.
    R. Parsons, V. Yue, X. Tong, P. Cardot, A. Bernard, J.P. Andreux, and K.D. Caldwell
    Uppsala University, Centre for Surface Biotechnology.
    A Comparative Study of Human Red Blood Cell Analysis with Three Different Field-Flow Fractionation Systems1996In: J. Chromatogr. B, Vol. 686, p. 177-187Article in journal (Refereed)
  • 127.
    Rosengren, Å.
    et al.
    Uppsala University, Centre for Surface Biotechnology. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Physical and Analytical Chemistry.
    Pavlovic, E.
    Uppsala University, Centre for Surface Biotechnology. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Physical and Analytical Chemistry.
    Oscarsson, S.
    Uppsala University, Centre for Surface Biotechnology. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Physical and Analytical Chemistry.
    Krajewski, A.
    Ravaglioli, A.
    Piancastelli, A.
    Plasma protein adsorption pattern on characterized ceramic biomaterials2002In: Biomaterials, Vol. 23, p. 1237-1247Article in journal (Refereed)
  • 128.
    Rosengren, Å.
    et al.
    Uppsala University, Centre for Surface Biotechnology.
    Pavlovic, E.
    Oscarsson, S.
    Ravaglioli, A.
    Krajewski, A.
    Piancastelli, A.
    In vitro studies of the interface between human plasma proteins and bone graft substitutes2001In: Proceedings 7th Seminar and Meetings; Biomimetic Engineering June 13-15, 2001, Faenza, Italy, Gruppo editoriale faenza editrice s.p.a. , 2001, p. 169-171Conference paper (Refereed)
  • 129.
    Rosengren, Åsa
    et al.
    Uppsala University, Centre for Surface Biotechnology. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Physical and Analytical Chemistry.
    Oscarsson, Sven
    Uppsala University, Centre for Surface Biotechnology. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Physical and Analytical Chemistry.
    Protein adsorption onto biomaterials after exposure to human serum1997In: 4: th Meeting and Seminars on Ceramic - Polymer Composites, May 22 - 24, 1997. Faenza, Italy. (Ed. Ravaglioli, A. and Krajewski, A.).Gruppo editoriale faenza editrice s.p.a., 1997, p. 207-211Conference paper (Other scientific)
  • 130.
    Rosengren, Åsa
    et al.
    Uppsala University, Centre for Surface Biotechnology. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Physical and Analytical Chemistry.
    Oscarsson, Sven
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Physical and Analytical Chemistry.
    Protein adsorption onto biomaterials after exposure to human serum1998In: 5: th Meeting and Seminars on Ceramics, Cells and Tissues. Oct. 1-3, 1998, Faenza, Italy (Ed. Ravaglioli, A. and Krajewski, A.).Gruppo editoriale faenza editrice s.p.a., 1998Conference paper (Other scientific)
  • 131.
    Rundström, Gerd
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Surface Biotechnology.
    Jonsson, Ann
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Physical and Analytical Chemistry, Surface Biotechnology, Centre for Surface Biotechnology.
    Mårtensson, Ola
    Mendel-Hartvig, Ib
    Venge, Per
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Clinical Chemistry.
    Lateral Flow Immunoassay Using Europium (III) Chelate Microparticles and Time-Resolved Fluorescence for Eosinophils and Neutrophils in Whole Blood2007In: Clinical Chemistry, ISSN 0009-9147, E-ISSN 1530-8561, Vol. 53, no 2, p. 342-348Article in journal (Refereed)
    Abstract [en]

    Background: A simple point-of-care method for measuring leukocyte counts in a doctor’s office or emergency room could be of great importance. We developed a protocol for measuring cell count by disrupting the cell membrane and analyzing specific proteins within the cells and used it to analyze proteins from eosinophils and neutrophils.

    Methods: Lateral immunochromatographic (ICR) assays have been developed for eosinophil protein X (EPX) and human neutrophil lipocalin (HNL) as measures of the concentration of eosinophils and neutrophils. The correlation between the lateral ICR assays and cell counting of eosinophils and neutrophils was performed manually and with an automated cell counter. RIA assays measuring the same analytes were also compared with the results from cell counting and lateral ICR assays.

    Results: The optimized assays showed analytical detection limits below the clinical ranges of 3.36 µg/L and 2.05 µg/L for EPX and HNL, respectively. The recovery was 114.8%–122.8% for EPX and 94.5%–96.9% for HNL. The imprecision was 3%–17% CV for EPX over the whole range and 5%–16% CV for HNL. The correlation coefficients between manually counted cells and lateral ICR assays were 0.9 and 0.83 for EPX and HNL, respectively.

    Conclusion: The numbers of eosinophils and neutrophils in small amounts of blood can be estimated in the point-of-care setting by means of fast lateral ICR assays of EPX and HNL.

  • 132.
    Sandberg, T
    et al.
    Uppsala University, Centre for Surface Biotechnology.
    Nestor, M
    Pahlson, C
    Shi, L
    Caldwell, KD
    Mucin as surface protectant against bacterial adhesion.2000In: ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, Vol. 220, p. 35-COLL -Other (Other scientific)
  • 133.
    S.-C. Huang, K.D. Caldwell, J.-N. Lin, and J.N. Herron
    Uppsala University, Centre for Surface Biotechnology.
    Site-Specific Immobilization of Monoclonal Antibodies using Spacer-Mediated Antibody Attachment1996In: Langmuir, Vol. 12, p. 4292-4298Article in journal (Refereed)
  • 134.
    S.-C. Huang, M.D. Stump, R. Weiss, and K.D. Caldwell
    Uppsala University, Centre for Surface Biotechnology.
    Binding of Biotinylated DNA to Streptavidin-Coated Polystyrene Latex: Effects of Chain Length and Particle Size1996In: Anal. Biochem., Vol. 237, p. 115-122Article in journal (Refereed)
  • 135.
    Schulz, A
    et al.
    Uppsala University, Centre for Surface Biotechnology.
    Rex, M
    Harris, NRP
    Braathern, GO
    Reimer, E
    Alfier, R
    Kilbane-Dawe, I
    Eckermann, S
    Allaart, M
    Alpers, M
    Bojkov, B
    Cisneros, J
    Claude, H
    Cuevas, E
    Davies, J
    De, Backer H
    Dier, H
    Dorokhov, V
    Fast, H
    Godin, S
    Johnson, B
    Kois, B
    Kondo, Y
    Kosmidis, E
    Arctic ozone loss in threshold conditions: Match observations in 1997/1998 and 1998/19992001In: JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, ISSN 0747-7309, Vol. 106, no D7, p. 7495-7503Article in journal (Refereed)
    Abstract [en]

    Chemical ozone loss rates inside the Arctic polar vortex were determined in early 1998 and early 1999 by using the Match technique based on coordinated ozonesonde measurements. These two winters provide the only opportunities in recent years to investigat

  • 136.
    Shi, L
    et al.
    Uppsala University, Centre for Surface Biotechnology.
    Ardehali, R
    Caldwell, K.D
    Valint, P
    Mucin Coating on Polymeric Material Surfaces to Suppress Bacterial Adhesion2000In: Colloids and Surfaces B:Biointerfaces, Vol. 17, p. 229-239Article in journal (Refereed)
  • 137.
    Shi, L
    et al.
    Uppsala University, Centre for Surface Biotechnology.
    Caldwell, K.D
    Mucin Adsorption to Hydrophobic Surfaces2000In: J. Coll. Interface Sci., Vol. 224, p. 372-381Article in journal (Refereed)
  • 138.
    Shi, L
    et al.
    Uppsala University, Centre for Surface Biotechnology.
    Miller, C
    Caldwell, K.D
    Valint, P
    Effects of Mucin Addition on the Stability of Oil-Water Emulsions1999In: Colloids and Surfaces B:Biointerfaces, Vol. 15, p. 303-312Article in journal (Refereed)
  • 139.
    Shi, Lei
    et al.
    Uppsala University, Centre for Surface Biotechnology.
    Ardehali, Reza
    Valint, Paul
    Caldwell, Karin D
    Bacterial adhesion to model surface with self-generated protection coating of mucin via jacalin2001Article in journal (Refereed)
  • 140.
    Smith, M. P., Bulmer, M., Hjorth, R., and Titchener-Hooker, N. J.
    Uppsala University, Centre for Surface Biotechnology.
    A comparative engineering study of the use of expanded bed and packed bed routes for the recovery of labile proteins from crude feedstocks1996In: 5th World Congress of Chemical Engineering (San Diego), 1996, p. 565-570Conference paper (Other scientific)
  • 141.
    Stadejek T., Vilcek S., Lowings J.P., Ballagi-Pordany, A., Paton, D.J. and Belak, S.
    Uppsala University, Centre for Surface Biotechnology.
    Genetic heterogeneity of classical swine fever virus in Central Europe1997In: Virus Res, Vol. 52, no 2, p. 195-204Article in journal (Refereed)
  • 142.
    Stewart, R.
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Physical and Analytical Chemistry, Surface Biotechnology, Centre for Surface Biotechnology.
    Caldwell, K.D.
    Ho, C.H.
    Limberis, L.
    Metal-Chelating Surfactant2000Patent (Other (popular scientific, debate etc.))
  • 143.
    Tan, J.S., Harrison, C.A., Li, J.-T. and Caldwell, K.D.
    Uppsala University, Centre for Surface Biotechnology.
    Characterization of Soluble Polyelectrolyte-Gelatin Complexes by Differential Size Exclusion Chromatography and Flow Field-Flow Fractionation1998In: J. Polymer Sci : Part B: Polymer Physics, Vol. 36, p. 537-542Article in journal (Refereed)
  • 144.
    Thisted Lambertz S., Ballagi-Pordany A., Lindqvist R.
    Uppsala University, Centre for Surface Biotechnology.
    A mimic as internal standard to monitor PCR analysis of food-borne pathogens1998In: Lett Appl Microbiol, Vol. 26, no 1, p. 009-011Article in journal (Refereed)
  • 145.
    Thisted Lambertz S., Ballagi-Pordany A., Nilsson A., Norberg, P. and Danielsson-Tham, M.L.
    Uppsala University, Centre for Surface Biotechnology.
    A comparison between a PCR method and a conventional culture method for detecting pathogenic Yersinia enterocolitica in food1996In: J Appl Bacteriol, Vol. 81, no 3, p. 303-308Article in journal (Refereed)
  • 146.
    Tingey, K., Sibrell, K., Dobaj, K., Caldwell, K., Fafard, M., and Schreiber, H.P.
    Uppsala University, Centre for Surface Biotechnology.
    Surface restructuring of Polyurethanes and its Control by Plasma Treatment1997In: J. Adhesion, Vol. 60, p. 27-38Article in journal (Refereed)
  • 147.
    Tong, X., Ash, J.F. and Caldwell, K.D
    Uppsala University, Centre for Surface Biotechnology.
    Rapid Swelling of a CHO-K1 Aspartate-Glutamate Transport Mutant in Hypo-Osmotic Medium1997In: J. Membrane Biol., Vol. 156, p. 131-139Article in journal (Refereed)
  • 148.
    Tri, N
    et al.
    Uppsala University, Centre for Surface Biotechnology.
    Caldwell, K
    Beckett, R
    Development of electrical field-flow fractionation2000In: ANALYTICAL CHEMISTRY, ISSN 0003-2700, Vol. 72, no 8, p. 1823-1829Article in journal (Refereed)
    Abstract [en]

    Electrical field-now fractionation (EIFFF) results for a series of polystyrene latex beads are presented. To first approximation, retention behavior can be related to conventional FFF theory, modified to account for a particle-wall repulsion effect. Size

  • 149.
    Ullsten, Sara
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry, Analytical Chemistry.
    Söderberg, Lennart
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Physical and Analytical Chemistry, Surface Biotechnology, Centre for Surface Biotechnology.
    Folestad, Staffan
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry, Analytical Chemistry.
    Markides, Karin
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry, Analytical Chemistry.
    Quaternary ammonium substituted agarose as surface coating in capillary electrophoresis2004In: The Analyst, ISSN 0003-2654, E-ISSN 1364-5528, Vol. 129, p. 410-415Article in journal (Refereed)
    Abstract [en]

    A novel positively charged polymer of quaternary ammonium substituted agarose (Q-agarose) has been synthesized and explored for use as a coating in capillary electrophoresis. The fast and simple coating procedure is based on a multi-site electrostatic interaction between the polycationic agarose polymer and the negatively charged fused-silica surface. By simply flushing fused-silica capillaries with hot polymer solution a positively charged, hydrophilic deactivation layer is achieved. The polymer surface provides an intermediate electroosmotic flow of reversed direction, over a range of pH 2-11, compared to unmodified fused-silica. The coating procedure was highly reproducible with an RSD of 4%, evaluated as the electroosmotic flow mobility for 30 capillaries prepared at 10 different occasions. The application of Q-agarose coated capillaries in separation science was investigated using a set of basic drugs and model proteins and peptides. Due to the intermediate electroosmotic flow generated, the resolution of basic drugs could be increased, compared to using bare fused-silica capillaries. Moreover, the coating enabled separation of proteins and peptides with efficiencies up to 300.000 plates m(-1).

  • 150.
    Vilcek S., Stadejek T., Ballagi-Pordany A., Lowings, J.P., Paton, D.J. and Belak, S.
    Uppsala University, Centre for Surface Biotechnology.
    Genetic variability of classical swine fever virus1996In: Virus Res, Vol. 43, no 2, p. 137-147Article in journal (Refereed)
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