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Publications (10 of 560) Show all publications
Strömme, M. (2018). Be ready for new opportunities! Nanotechnology will change our way of living. In: The Swedsih Lunch 2018: . Paper presented at World Economic Forum. Davos 22-24/1 2018. The Swedish Lunch 2018.. .
Open this publication in new window or tab >>Be ready for new opportunities! Nanotechnology will change our way of living
2018 (English)In: The Swedsih Lunch 2018, 2018Conference paper, Oral presentation with published abstract (Refereed)
National Category
Nano Technology
Research subject
Engineering Science with specialization in Nanotechnology and Functional Materials
Identifiers
urn:nbn:se:uu:diva-339080 (URN)
Conference
World Economic Forum. Davos 22-24/1 2018. The Swedish Lunch 2018.
Available from: 2018-01-15 Created: 2018-01-15 Last updated: 2018-02-15Bibliographically approved
Strömme, M. (2018). Den stora ändringen i det lilla. Nanotenologin ändrar industrin. In: DnB (Ed.), Industrikonferansen 2018: Risk and Reward. Paper presented at Industrikonferansen 2018; Risk and Reward. Oslo Norway 16/1 2018.. .
Open this publication in new window or tab >>Den stora ändringen i det lilla. Nanotenologin ändrar industrin
2018 (Swedish)In: Industrikonferansen 2018: Risk and Reward / [ed] DnB, 2018Conference paper, Oral presentation with published abstract (Refereed)
National Category
Nano Technology
Research subject
Engineering Science with specialization in Nanotechnology and Functional Materials
Identifiers
urn:nbn:se:uu:diva-339079 (URN)
Conference
Industrikonferansen 2018; Risk and Reward. Oslo Norway 16/1 2018.
Available from: 2018-01-15 Created: 2018-01-15 Last updated: 2018-02-15Bibliographically approved
Basu, A., Heitz, K., Strömme, M., Welch, K. & Ferraz, N. (2018). Ion-crosslinked wood-derived nanocellulose hydrogels with tunable antibacterial properties: Candidate materials for advanced wound care applications. Carbohydrate Polymers, 181, 345-350.
Open this publication in new window or tab >>Ion-crosslinked wood-derived nanocellulose hydrogels with tunable antibacterial properties: Candidate materials for advanced wound care applications
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2018 (English)In: Carbohydrate Polymers, ISSN 0144-8617, E-ISSN 1879-1344, Vol. 181, p. 345-350Article in journal (Refereed) Published
Abstract [en]

Development of advanced dressings with antimicrobial properties for the treatment of infected wounds is an important approach in the fight against evolution of antibiotic resistant bacterial strains. Herein, the effects of ion-crosslinked nanocellulose hydrogels on bacteria commonly found in infected wounds were investigated in vitro. By using divalent calcium or copper ions as crosslinking agents, different antibacterial properties against the bacterial strains Staphylococcus epidermidis and Pseudomonas aeruginosa were obtained. Calcium crosslinked hydrogels were found to retard S. epidermidis growth (up to 266% increase in lag time, 36% increase in doubling time) and inhibited P. aeruginosa biofilm formation, while copper crosslinked hydrogels prevented S. epidermidis growth and were bacteriostatic towards P. aeruginosa (49% increase in lag time, 78% increase in doubling time). The wound dressing candidates furthermore displayed barrier properties towards both S. epidermidis and P. aeruginosa, hence making them interesting for further development of advanced wound dressings with tunable antibacterial properties.

Keyword
Nanofibrillated cellulose, Biofilm, Wound dressing, Infected wound
National Category
Nano Technology
Research subject
Engineering Science with specialization in Nanotechnology and Functional Materials
Identifiers
urn:nbn:se:uu:diva-333382 (URN)10.1016/j.carbpol.2017.10.085 (DOI)000418661000041 ()29253982 (PubMedID)
Funder
Swedish Research Council Formas
Available from: 2017-11-13 Created: 2017-11-13 Last updated: 2018-01-25Bibliographically approved
Strömme, M. (2018). Nanoteknologini framtida vård. : Möjligheter och hinder. In: Ramboll (Ed.), Rambolls sjukhuskonferens 2018:: Vårdmiljöer rustade för tekniksprång. Paper presented at Rambolls sjukhuskonferens 2018: Vårdmiljöer rustade för tekniksprång. Kulturhuset, Stockholm 6/2 2018.. Stockholm.
Open this publication in new window or tab >>Nanoteknologini framtida vård. : Möjligheter och hinder
2018 (Swedish)In: Rambolls sjukhuskonferens 2018:: Vårdmiljöer rustade för tekniksprång / [ed] Ramboll, Stockholm, 2018Conference paper, Oral presentation with published abstract (Other academic)
Place, publisher, year, edition, pages
Stockholm: , 2018
National Category
Nano Technology
Research subject
Engineering Science with specialization in Nanotechnology and Functional Materials
Identifiers
urn:nbn:se:uu:diva-341006 (URN)
Conference
Rambolls sjukhuskonferens 2018: Vårdmiljöer rustade för tekniksprång. Kulturhuset, Stockholm 6/2 2018.
Available from: 2018-02-05 Created: 2018-02-05 Last updated: 2018-02-05
Ruan, C., Strömme, M. & Lindh, J. (2018). Preparation of Porous 2,3-dialdehyde Cellulose Beads Crosslinked with Chitosan and their Application in Adsorption of Congo Red Dye. Carbohydrate Polymers, 181, 200-207.
Open this publication in new window or tab >>Preparation of Porous 2,3-dialdehyde Cellulose Beads Crosslinked with Chitosan and their Application in Adsorption of Congo Red Dye
2018 (English)In: Carbohydrate Polymers, ISSN 0144-8617, E-ISSN 1879-1344, Vol. 181, p. 200-207Article in journal (Refereed) Published
Abstract [en]

Micrometer sized 2,3-dialdehyde cellulose (DAC) beads were produced via a recently developed method relying on periodate oxidation of Cladophora nanocellulose. The produced dialdehyde groups and pristine hydroxyl groups provided the DAC beads with a vast potential for further functionalization. The sensitivity of the DAC beads to alkaline conditions, however, limits their possible functionalization and applications. Hence, alkaline-stable and porous cellulose beads were prepared via a reductive amination crosslinking reaction between 2,3-dialdehyde cellulose beads and chitosan. The produced materials were thoroughly characterized with different methods. The reaction conditions, including the amount of chitosan used, conditions for reductive amination, reaction temperature and time, were investigated and the maintained morphology of the beads after exposure to 1 M NaOH (aq.) was verified with SEM. Different washing and drying procedures were used and the results were studied by SEM and BET analysis. Furthermore, FTIR, TGA, EDX, XPS, DLS and elemental analysis were performed to characterize the properties of the prepared beads. Finally, the alkaline-stable porous chitosan cross-linked 2,3-dialdehyde cellulose beads were applied as adsorbent for the dye Congo red. The crosslinked beads displayed fast and high adsorption capacity at pH 2 and good desorption properties at pH 12, providing a promising sorption material.

Keyword
Cladophora nanocellulose, 2, 3-Dialdehyde cellulose beads Chitosan, Crosslink, Congo red dye
National Category
Nano Technology
Research subject
Engineering Science with specialization in Nanotechnology and Functional Materials
Identifiers
urn:nbn:se:uu:diva-334956 (URN)10.1016/j.carbpol.2017.10.072 (DOI)000418661000025 ()29253964 (PubMedID)
Available from: 2017-11-29 Created: 2017-11-29 Last updated: 2018-01-25Bibliographically approved
Emanuelsson, R., Sterby, M., Strømme, M. & Sjödin, M. (2017). An All-Organic Proton Battery. Journal of the American Chemical Society, 139(13), 4828-4834.
Open this publication in new window or tab >>An All-Organic Proton Battery
2017 (English)In: Journal of the American Chemical Society, ISSN 0002-7863, E-ISSN 1520-5126, Vol. 139, no 13, p. 4828-4834Article in journal (Refereed) Published
Abstract [en]

Rechargeable batteries that use organic matter as. the capacity-carrying material have previously been considered a technology for the future. Earlier batteries in which both the anode and cathode consisted of organic material required significant amounts of conductive additives and were often based on metal-ion electrolytes containing Li+ or Na+. However, we have used conducting poly(3,4-ethylenedioxythiophene) (PEDOT), functionalized with anthraquinone (PEDQT-AQ) or, benzonquinone (PEDOT-BQ) pendant groups as the negative and positive electrode materials, respectively, to make an all-organic proton battery devoid of metals. The electrolyte consists of a proton donor and acceptor slurry containing substituted pyridinium triflates and the corresponding pyridine base. This slurry allows the 2e(-)/2H(+) quinone/hydroquinone redox reactions while suppressing proton reduction in the battery cell. By using strong (acidic) proton donors, the formal potential of the quinone redox reactions is tuned into the potential region in which the PEDOT backbone is conductive, thus eliminating the need for conducting additives. In this all-organic proton battery cell, PEDOT-AQ and PEDOT-BQ deliver 103 and 120 mAh g(-1), which correspond to 78% and 75%, respectively, of the theoretical specific capacity of the materials at an average cell potential of 0.5 V. We show that PEDOT-BQ determines the cycling stability of the device while PEDOT-AQ provides excellent reversibility for at least 1000 cycles. This proof-of-concept shows the feasibility of assembling all organic proton batteries which require no conductive additives and also reveals where the challenges and opportunities lie on the path to producing plastic batteries.

Keyword
rechargeable lithium batteries, li-ion batteries, electrode materials, energy-storage, cathode, anode, salt, electrochemistry, derivatives, polymer
National Category
Nano Technology
Research subject
Engineering Science with specialization in Nanotechnology and Functional Materials
Identifiers
urn:nbn:se:uu:diva-319048 (URN)10.1021/jacs.7b00159 (DOI)000398764000036 ()28293954 (PubMedID)
Funder
Swedish Foundation for Strategic Research Swedish Research CouncilCarl Tryggers foundation Swedish Energy AgencyEU, Horizon 2020, H2020/2014-2020 644631
Available from: 2017-03-30 Created: 2017-03-30 Last updated: 2017-05-16Bibliographically approved
Araujo, R. B., Banerjee, A., Panigrahi, P., Yang, L., Sjödin, M., Strömme, M., . . . Ahuja, R. (2017). Assessing Electrochemical Properties of Polypyridine and Polythiophene for Prospective Application in Sustainable Organic Batteries. Physical Chemistry, Chemical Physics - PCCP, 19(4), 3307-3314.
Open this publication in new window or tab >>Assessing Electrochemical Properties of Polypyridine and Polythiophene for Prospective Application in Sustainable Organic Batteries
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2017 (English)In: Physical Chemistry, Chemical Physics - PCCP, ISSN 1463-9076, E-ISSN 1463-9084, Vol. 19, no 4, p. 3307-3314Article in journal (Refereed) Published
Abstract [en]

Conducting polymers are being considered promising candidates for sustainable organic batteries mainly due to their fast electron transport properties and high recyclability. In this work, key properties of polythiophene and polypyridine have been assessed through a combined theoretical and experimental study focusing on such applications. A theoretical protocol has been developed to calculate redox potentials in solution within the framework of the density functional theory and using continuous solvation models. Here, the evolution of the electrochemical properties of solvated oligomers as a function of the length of the chain is analyzed and then the polymer properties are estimated via linear regressions using ordinary least square. The predicted values were verified against our electrochemical experiments. This protocol can now be employed to screen a large database of compounds in order to identify organic electrodes with superior properties.

National Category
Nano Technology
Research subject
Engineering Science with specialization in Nanotechnology and Functional Materials
Identifiers
urn:nbn:se:uu:diva-311276 (URN)10.1039/C6CP07435A (DOI)000394940400071 ()28091636 (PubMedID)
Funder
Swedish Foundation for Strategic Research Swedish Energy AgencyStandUpSwedish Research Council
Available from: 2016-12-22 Created: 2016-12-22 Last updated: 2017-10-19Bibliographically approved
Ruan, C., Gustafsson, S., Strømme, M., Mihranyan, A. & Lindh, J. (2017). Cellulose nanofibers prepared via pretreatment based on Oxone® oxidation. Molecules, 22(12), Article ID 2177.
Open this publication in new window or tab >>Cellulose nanofibers prepared via pretreatment based on Oxone® oxidation
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2017 (English)In: Molecules, ISSN 1420-3049, E-ISSN 1420-3049, Vol. 22, no 12, article id 2177Article in journal (Refereed) Published
Abstract [sv]

Softwood sulfite bleached cellulose pulp was oxidized with Oxone (R) and cellulose nanofibers (CNF) were produced after mechanical treatment with a high-shear homogenizer. UV-vis transmittance of dispersions of oxidized cellulose with different degrees of mechanical treatment was recorded. Scanning electron microscopy (SEM) micrographs and atomic force microscopy (AFM) images of samples prepared from the translucent dispersions showed individualized cellulose nanofibers with a width of about 10 nm and lengths of a few hundred nm. All results demonstrated that more translucent CNF dispersions could be obtained after the pretreatment of cellulose pulp by Oxone (R) oxidation compared with the samples produced without pretreatment. The intrinsic viscosity of the cellulose decreased after oxidation and was further reduced after mechanical treatment. Almost translucent cellulose films were prepared from the dispersions of individualized cellulose nanofibers. The procedure described herein constitutes a green, novel, and efficient route to access CNF.

Place, publisher, year, edition, pages
MDPI AG, 2017
National Category
Nano Technology
Research subject
Engineering Science with specialization in Nanotechnology and Functional Materials
Identifiers
urn:nbn:se:uu:diva-328387 (URN)10.3390/molecules22122177 (DOI)000419242400142 ()
Available from: 2017-08-23 Created: 2017-08-23 Last updated: 2018-02-19Bibliographically approved
Wang, Z., Tammela, P., Strömme, M. & Nyholm, L. (2017). Cellulose-based Supercapacitors: Material and Performance Considerations. Advanced Energy Materials, 7(18), Article ID 1700130.
Open this publication in new window or tab >>Cellulose-based Supercapacitors: Material and Performance Considerations
2017 (English)In: Advanced Energy Materials, ISSN 1614-6832, Vol. 7, no 18, article id 1700130Article in journal (Refereed) Published
Abstract [en]

One of the biggest challenges we will face over the next few decades is finding a way to power the future while maintaining strong socioeconomic growth and a clean environment. A transition from the use of fossil fuels to renewable energy sources is expected. Cellulose, the most abundant natural biopolymer on earth, is a unique, sustainable, functional material with exciting properties: it is low-cost and has hierarchical fibrous structures, a high surface area, thermal stability, hydrophilicity, biocompatibility, and mechanical flexibility, which makes it ideal for use in sustainable, flexible energy storage devices. This review focuses on energy storage applications involving different forms of cellulose (i.e., cellulose microfibers, nanocellulose fibers, and cellulose nanocrystals) in supercapacitors, with particular emphasis on new trends and performance considerations relevant to these fields. Recent advances and approaches to obtaining high capacity devices are evaluated and the limitations of cellulose-based systems are discussed. For the first time, a combination of device-specific factors such as electrode structures, mass loadings, areal capacities, and volumetric properties are taken into account, so as to evaluate and compare the energy storage performance and to better assess the merits of cellulose-based materials with respect to real applications.

Place, publisher, year, edition, pages
WILEY: Wiley-VCH Verlagsgesellschaft, 2017
Keyword
cellulose, supercapacitor
National Category
Materials Chemistry Polymer Chemistry Engineering and Technology
Research subject
Chemistry; Engineering Science with specialization in Nanotechnology and Functional Materials
Identifiers
urn:nbn:se:uu:diva-333373 (URN)10.1002/aenm.201700130 (DOI)000411182500029 ()
Funder
Swedish Foundation for Strategic Research , RMA110012Stiftelsen Olle Engkvist ByggmästareSwedish Energy AgencyCarl Tryggers foundation
Available from: 2017-11-12 Created: 2017-11-12 Last updated: 2017-12-20Bibliographically approved
Sterby, M., Emanuelsson, R., Huang, X., Gogoll, A., Strömme, M. & Sjödin, M. (2017). Characterization of PEDOT-Quinone Conducting Redox Polymers for Water Based Secondary Batteries. Electrochimica Acta, 235, 356-364.
Open this publication in new window or tab >>Characterization of PEDOT-Quinone Conducting Redox Polymers for Water Based Secondary Batteries
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2017 (English)In: Electrochimica Acta, ISSN 0013-4686, E-ISSN 1873-3859, Vol. 235, p. 356-364Article in journal (Refereed) Published
Abstract [en]

Lithium-ion technologies show great promise to meet the demands that the transition towards renewable energy sources and the electrification of the transport sector put forward. However, concerns regarding lithium-ion batteries, including limited material resources, high energy consumption during production, and flammable electrolytes, necessitate research on alternative technologies for electrochemical energy storage. Organic materials derived from abundant building blocks and with tunable properties, together with water based electrolytes, could provide safe, inexpensive and sustainable alternatives. In this study, two conducting redox polymers based on poly(3,4-ethylenedioxythiophene) (PEDOT) and a hydroquinone pendant group have been synthesized and characterized in an acidic aqueous electrolyte. The polymers were characterized with regards to kinetics, pH dependence, and mass changes during oxidation and reduction, as well as their conductance. Both polymers show redox matching, i.e. the quinone redox reaction occurs within the potential region where the polymer is conducting, and fast redox conversion that involves proton cycling during pendant group redox conversion. These properties make the presented materials promising candidates as electrode materials for water based all-organic batteries.

Keyword
Conducting Redox Polymer, Quinone, Organic Batteries, Proton Batteries, Redox Matching
National Category
Nano Technology
Research subject
Engineering Science with specialization in Nanotechnology and Functional Materials
Identifiers
urn:nbn:se:uu:diva-319049 (URN)10.1016/j.electacta.2017.03.068 (DOI)000398330200042 ()
Funder
Swedish Foundation for Strategic Research Swedish Research CouncilCarl Tryggers foundation Swedish Energy AgencyEU, Horizon 2020, 644631
Available from: 2017-03-30 Created: 2017-03-30 Last updated: 2017-05-12Bibliographically approved
Organisations
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0002-5496-9664

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