Kazan (Volga region) Federal University, KFU
KAZAN
FEDERAL UNIVERSITY
 
INTERACTION OF POLYACRYLIC ACID WITH LIPID BILAYERS: EFFECT OF POLYMER MASS
Form of presentationArticles in international journals and collections
Year of publication2013
Языканглийский
  • Gnezdilov Oleg Ivanovich, author
  • Filippov Andrey Vasilevich, author
  • Bibliographic description in the original language Munavirov B, Gnezdilov O, Rudakova M, Interaction of polyacrylic acid with lipid bilayers: Effect of polymer mass//Magnetic Resonance in Chemistry. - 2013. - Vol.51, Is.11. - P.750-755.
    Annotation Polyanion-coated lipid vesicles are proposed to have an appreciable potential for drug delivery because of their ability to control the permeability of lipid bilayers by environmental parameters such as pH and temperature. However, details of the interaction of this class of polymers with lipids and theirmechanisms of induced permeability are still being debated. In thiswork,we applied 1H NOESY to study details of the interaction of polyacrylic acid (PAA) fractions of molecular weights 5 and 240 kDa with dimyristoylphosphatidylcholine vesicles.We showed that PAA of two differentmolecularmassesmodifies lipid bilayers increasing disorder and probability of close contact between polar and hydrophobic groups. PAA molecules adsorb near the interface of lipid bilayers but do not penetrate into the hydrophobic core of the bilayer and, thus, cannot participate in formation of transbilayer channels, proposed in earlier works.
    Keywords Interaction, polyacrylic acid, lipid bilayers, polymer mass, NMR
    The name of the journal Magnetic Resonance in Chemistry
    URL https://www.scopus.com/inward/record.uri?eid=2-s2.0-84885130275&partnerID=40&md5=848dd2bb59023b023c22ee5bc3cdf0d0
    Please use this ID to quote from or refer to the card https://repository.kpfu.ru/eng/?p_id=162912&p_lang=2

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