%0 Journal Article
%A Dubnichkova, M.
%A Yaradaykin, S.
%A Lacko, I.
%A Devinsky, F.
%A Gordeliy, I. L.
%A Balgovy, P.
%T Effects of germini surfactants on egg phosphatidylcholine bilayers in the fluid lamellar phase
%J Colloids and surfaces / B
%V 34
%@ 0927-7765
%C Amsterdam [u.a.]
%I Elsevier Science
%M PreJuSER-40334
%P 161 - 164
%D 2004
%Z Record converted from VDB: 12.11.2012
%X The influence of 1,4-butanediamonium-N,N'-dialkyl-N,N,N',N'-tetramethyl dibromides (CmA, m = 7-16 is the number of alkyl carbons) on the egg yolk phosphatidylcholine (EYPC) bilayer thickness and lipid surface area at the bilayer-aqueous phase interface is studied using X-ray diffraction on fluid lamellar CmA + EYPC + H2O phases as a function of CmA:EYPC and H2O:EYPC molar ratios and the alkyl chain length m. At the constant CmA:EYPC = 0.4 and H2O:EYPC = 18 molar ratios, the CmA induced bilayer thickness decrease shows a minimum and the lipid surface area increase a maximum at the alkyl chain length m = 9. The obtained results are discussed in the context of a structural perturbation model of the cut-off effect in biological potencies of surfactants which occurs when increasing the alkyl substituent chain length above the critical value.
%K Egg Yolk: metabolism
%K Lipid Bilayers: chemistry
%K Lipids: chemistry
%K Liposomes: chemistry
%K Models, Chemical
%K Models, Statistical
%K Phosphatidylcholines: chemistry
%K Scattering, Radiation
%K X-Ray Diffraction
%K Lipid Bilayers (NLM Chemicals)
%K Lipids (NLM Chemicals)
%K Liposomes (NLM Chemicals)
%K Phosphatidylcholines (NLM Chemicals)
%K J (WoSType)
%F PUB:(DE-HGF)16
%9 Journal Article
%$ pmid:15261069
%U <Go to ISI:>//WOS:000220691000003
%R 10.1016/j.colsurfb.2003.12.009
%U https://juser.fz-juelich.de/record/40334