Structural Studies of Selected DSPC-Surfactant Model Systems of Biological Membranes |
| K. Szpotkowski a, M. Kozak a, A. Kozak b, R. Zieliński c, D. Wieczorek c and S. Jurga a
a Department of Macromolecular Physics, Faculty of Physics, A. Mickiewicz University, Umultowska 85, 61-614 Poznań, Poland b Department of Water Protection, Faculty of Biology, A. Mickiewicz University, Umultowska 89, 61-614 Poznań, Poland c Department of Technology and Environmental Protection, Faculty of Commodity Science, Poznań University of Economics, al. Niepodlegości 10, 61-875 Poznań, Poland |
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| Fourier transform infrared spectroscopy was used to analyse the influence of a cationic surfactant from the group of morpholine derivatives on the conformational dynamics of CH2 group in acyl chain of DSPC. The presence of the surfactant causes a decrease in the DSPC phase transition temperature. This result suggests that the surfactant interactions with phospholipid molecules disturb the lipid layers. The Fourier transform infrared measurements were supplemented with tests of the environmental toxicity of the surfactant used. |
| DOI: 10.12693/APhysPolA.115.561 PACS numbers: 33.20.Ea, 47.55.dk, 87.14.Cc, 87.16.D- |