On What Time Scale Does Solvent Relaxation in Phospholipid Bilayers Happen?
| العنوان: | On What Time Scale Does Solvent Relaxation in Phospholipid Bilayers Happen? |
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| المؤلفون: | Martin Hof, Jan Sýkora, and Vlastimil Fidler, Peter Kapusta |
| المصدر: | Langmuir. 18:571-574 |
| بيانات النشر: | American Chemical Society (ACS), 2002. |
| سنة النشر: | 2002 |
| مصطلحات موضوعية: | Chemistry, Bilayer, Analytical chemistry, Surfaces and Interfaces, Nanosecond, Chromophore, Condensed Matter Physics, Fluorescence, Solvent, chemistry.chemical_compound, Chemical physics, Picosecond, Electrochemistry, Relaxation (physics), General Materials Science, Laurdan, Spectroscopy |
| الوصف: | Time-resolved emission spectra of seven fluorescent probes in egg-phosphatidylcholine bilayers have been investigated. About 90% of the solvent relaxation monitored by the headgroup labels Prodan, Laurdan, and Patman and by the backbone label 2-AS can be captured with an instrument providing subnanosecond time resolution. In comparison to 2-AS, the transient red-shift of 9-AS is characterized by a larger contribution of a picosecond process and by slower nanosecond dynamics. The major contribution to solvent relaxation probed by C17DiFU and Dauda is faster than the ultimate time resolution of the experiment; those chromophores appear to be located within the external interface of the bilayer. |
| تدمد: | 1520-5827 0743-7463 |
| DOI: | 10.1021/la011337x |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::68f2d50c9fbb008349a988cd7ded54fa https://doi.org/10.1021/la011337x |
| رقم الانضمام: | edsair.doi...........68f2d50c9fbb008349a988cd7ded54fa |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 15205827 07437463 |
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| DOI: | 10.1021/la011337x |