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000834109 1001_ $$0P:(DE-HGF)0$$aGorshkova, Yu. E.$$b0$$eCorresponding author
000834109 245__ $$aStructure and phase transitions of DMPC multilamellar vesicles in the presence of Ca2+ ions
000834109 260__ $$aMoscow$$bMAIK Nauka/Interperiodics Publ.$$c2017
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000834109 520__ $$aResults obtained via small-angle neutron scattering studies of the influence of calcium ions on the structure and phase transitions of phospholipid membranes are presented. The main phase transition temperature of 1,2-dimyristoyl-sn-glycero-3-phosphatidylcholine (1 wt %) multilamellar vesicles is demonstrated to increase by more than 1°C even when the calcium-ion content of the solution is low (0.1 mM). Detailed analysis of the multilamellar vesicles transition between “bound” and “unbound” state indicates the continuous character of the investigated process in both liquid and gel phases. The critical Ca2+ ion concentrations which initiate the destruction of the multilamellar structures and the formation of unilamellar vesicles are found to be ~0.3 mM in the gel and ~0.4–0.5 mM in the liquid-crystal phases during heating and ~0.5 mM in the phases under study upon cooling.
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000834109 7001_ $$0P:(DE-HGF)0$$aKuklin, A. I.$$b1
000834109 7001_ $$0P:(DE-Juel1)131964$$aGordeliy, Valentin$$b2$$ufzj
000834109 773__ $$0PERI:(DE-600)2389417-9$$a10.1134/S1027451016050499$$n1$$p27–37$$tJournal of surface investigation$$v11$$x1027-4510$$y2017
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