Elementary Processes of Electromass Transfer in Functional Materials, Polymeric and Biological Membranes

A special issue of Membranes (ISSN 2077-0375). This special issue belongs to the section "Membrane Analysis and Characterization".

Deadline for manuscript submissions: closed (30 September 2023) | Viewed by 5250

Special Issue Editors


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Guest Editor
Federal Research Center for Problems of Chemical Physics and Medicinal Chemistry RAS, 142432 Chernogolovka, Russia
Interests: magnetic resonance; biological membranes; ionic and molecular mobility; association; permeability

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Guest Editor
NMR Laboratory, Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka, Moscow Region, Russia
Interests: magnetic resonance; membrane processes; polymeric membranes; polymeric electrolytes; biological membranes; ionic and molecular mobility and association
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Special Issue Information

Dear Colleagues,

Ionic and molecular transport in polymer electrolytes and membrane channels controls the electrochemical properties of ion exchange membranes, lithium batteries and metabolism processes in living systems. Charge transfer and catalysis mechanisms in redox-active materials with a porous membrane-like structure and other functional systems should be understood. Revelation interconnection of the polymer structure, solvation particularities, and molecule and ion mobilities in different spatial scales is a key to transport mechanism understanding. The penetration of substances through cell membranes is an important fundamental task for the revelation of the principle of functioning of living systems. Biological active species are particularly attractive. Physics methods are very informative for these investigations. NMR became the method of choice. Solvent molecules, cation and anion diffusion in ion exchange polymeric membranes, polyelectrolytes for lithium batteries and model systems were revealed by pulsed field gradient NMR (PFG NMR). Water molecule and biologically active molecules permeability was estimated in erythrocyte, yeast and chlorella cells by PFG NMR. Now PFG NMR became a novel prospective application technique for synthetic and biological membranes.

This Special Issue «Elementary Processes of Electro mass Transfer in Functional Materials and Polymeric and Biological Membranes» of the journal Membranes seeks contributions of electro-mass transfer mechanism investigation in functional materials, which is necessary for new charge transport processes development and polymer electrolyte materials production. The issue is also devoted to biological system molecular exchange and association. Topics include, but are not limited to polymeric electrolyte materials and biological species. The main technique is NMR, but other experimental techniques, especially in aggregate with NMR, theoretical methods and approaches are very desirable. Authors are invited to submit their latest results; both original papers and reviews are welcome.

Dr. Irina Avilova
Prof. Dr. Vitaly I. Volkov
Guest Editors

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Keywords

  • polymeric electrolytes
  • polymer electrodes
  • membranes
  • pore systems
  • ionic channels
  • biological systems
  • cell membranes
  • permeability
  • molecular association
  • hydration
  • self-diffusion
  • molecular and ionic transport
  • solar cells
  • electron transfer

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Published Papers (2 papers)

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Research

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21 pages, 6887 KiB  
Article
New Network Polymer Electrolytes Based on Ionic Liquid and SiO2 Nanoparticles for Energy Storage Systems
by Kyunsylu G. Khatmullina, Nikita A. Slesarenko, Alexander V. Chernyak, Guzaliya R. Baymuratova, Alena V. Yudina, Mikhail P. Berezin, Galiya Z. Tulibaeva, Anna A. Slesarenko, Alexander F. Shestakov and Olga V. Yarmolenko
Membranes 2023, 13(6), 548; https://doi.org/10.3390/membranes13060548 - 24 May 2023
Cited by 3 | Viewed by 3533
Abstract
Elementary processes of electro mass transfer in the nanocomposite polymer electrolyte system by pulse field gradient, spin echo NMR spectroscopy and the high-resolution NMR method together with electrochemical impedance spectroscopy are examined. The new nanocomposite polymer gel electrolytes consisted of polyethylene glycol diacrylate [...] Read more.
Elementary processes of electro mass transfer in the nanocomposite polymer electrolyte system by pulse field gradient, spin echo NMR spectroscopy and the high-resolution NMR method together with electrochemical impedance spectroscopy are examined. The new nanocomposite polymer gel electrolytes consisted of polyethylene glycol diacrylate (PEGDA), salt LiBF4 and 1—ethyl—3—methylimidazolium tetrafluoroborate (EMIBF4) and SiO2 nanoparticles. Kinetics of the PEGDA matrix formation was studied by isothermal calorimetry. The flexible polymer–ionic liquid films were studied by IRFT spectroscopy, differential scanning calorimetry and temperature gravimetric analysis. The total conductivity in these systems was about 10−4 S cm−1 (−40 °C), 10−3 S cm−1 (25 °C) and 10−2 S cm−1 (100 °C). The method of quantum-chemical modeling of the interaction of SiO2 nanoparticles with ions showed the advantage of the mixed adsorption process, in which a negatively charged surface layer is formed from Li+ BF4 ions on silicon dioxide particles and then from ions of the ionic liquid EMI+ BF4. These electrolytes are promising for use both in lithium power sources and in supercapacitors. The paper shows preliminary tests of a lithium cell with an organic electrode based on a pentaazapentacene derivative for 110 charge–discharge cycles. Full article
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Review

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19 pages, 4301 KiB  
Review
Water and Molecular Exchange in Biological Cells Studied Using 1H Pulsed Field Gradient NMR
by Irina A. Avilova and Vitaly I. Volkov
Membranes 2023, 13(6), 567; https://doi.org/10.3390/membranes13060567 - 30 May 2023
Cited by 1 | Viewed by 1309
Abstract
This review presents the results of studies of molecular exchange processes in various biological systems (erythrocytes, yeast, liposomes, etc.) performed using pulsed field gradient NMR (PFG NMR). The main theory of processing necessary for the analysis of experimental data is briefly presented: the [...] Read more.
This review presents the results of studies of molecular exchange processes in various biological systems (erythrocytes, yeast, liposomes, etc.) performed using pulsed field gradient NMR (PFG NMR). The main theory of processing necessary for the analysis of experimental data is briefly presented: the extraction of self-diffusion coefficients, calculation of cell sizes, and permeability of cell membranes. Attention is paid to the results of assessing the permeability of biological membranes for water molecules and biologically active compounds. The results for other systems are also presented: yeast, chlorella, and plant cells. The results of studies of the lateral diffusion of lipid and cholesterol molecules in model bilayers are also presented. Full article
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