Abstract:Properties of biomembranes are modified in presence of additives such as cholesterol (chol) or proteins. Azobenzene-cholesterol (azo-chol) is a photoactive variety of chol since its azo-headgroup exhibits a reversible change of the conformation upon illumination (365nm: trans to cis; 455nm: cis to trans). Quasielastic neutron scattering (QENS) was applied to resolve lipid dynamics within biomimetic membranes consisting of a 1-palmitoyl-2-oleoyl-sn-phosphatidyl-choline (POPC) matrix with embedded azo-chol in ei… Show more
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