Ripple phase behavior in mixtures of DPPC/POPC lipids: SAXS and SANS studies

0391901 - ÚMCH 2014 RIV GB eng J - Článek v odborném periodiku
Soloviov, D. V. - Gorshkova, Yu. E. - Ivankov, O. I. - Zhigunov, Alexander - Bulavin, L. A. - Gordeliy, V. I. - Kuklin, A. I.
Ripple phase behavior in mixtures of DPPC/POPC lipids: SAXS and SANS studies.
Journal of Physics: Conference Series. Roč. 351, č. 1 (2012), 012010_1-012010_7. ISSN 1742-6588. E-ISSN 1742-6596
Výzkumný záměr: CEZ:AV0Z40500505
Klíčová slova: DPPC/POPC * SAXS * SANS
Kód oboru RIV: CD - Makromolekulární chemie

Multilayer membranes of DPPC (1,2-dipalmitoyl-sn-glycero-3-phosphatidylcholine) and mixture DPPC/POPC (1-palmitoyl-2-oleoyl-sn-glycero-3-phosphatidylcholine) in excess of water were investigated by small angle X-ray scattering and neutron small angle scattering. Structural parameters of lipid bilayers were determined in a wide temperature range. It was shown that addition of the POPC to the DPPC/H2O does not change the temperature of the DPPC main phase transition T-m. The observed phase separation occurs for the system DPPC/POPC/H2O up to the pre-transition temperature T-r (gel phase - ripple phase) of the DPPC multilayers.
Trvalý link: http://hdl.handle.net/11104/0230329