Molecular-scale structure in fluid-gel patterned bilayers : stability of interfaces and transmembrane distribution
Variations in two-dimensional membrane structures on the molecular length scale are considered to have an effect on the mechanisms by which living cell membranes maintain their functionality. We created a molecular model of a patterned bilayer to asses the static and dynamic variations of membrane l...
| Veröffentlicht in: | Langmuir : the ACS journal of surfaces and colloids. - 1985. - 23(2007), 25 vom: 04. Dez., Seite 12465-8 |
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| Weitere Verfasser: | , |
| Format: | Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
2007
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| Zugriff auf das übergeordnete Werk: | Langmuir : the ACS journal of surfaces and colloids |
| Schlagworte: | Journal Article Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. Gels Lipid Bilayers Membranes, Artificial Phosphatidylcholines 1,2-dilauroylphosphatidylcholine 18285-71-7 1,2-distearoyllecithin |
| Zusammenfassung: | Variations in two-dimensional membrane structures on the molecular length scale are considered to have an effect on the mechanisms by which living cell membranes maintain their functionality. We created a molecular model of a patterned bilayer to asses the static and dynamic variations of membrane lateral and transbilayer distribution in two-component lipid bilayers on the molecular level. We study DSPC (distearoylphosphatidylcholine) nanometer domains in a fluid DLPC (dilauroylphosphatidylcholine) background. The system exhibits coexisting fluid and gel phases and is studied on a microsecond time scale. We characterize three different kinds of patterns: symmetric domains, asymmetric domains, and symmetric-asymmetric domains. Preferred bilayer configurations on the nanoscale are those that minimize the hydrophobic mismatch. We find nanoscale patterns to be dynamic structures with mainly lateral and rotational diffusion affecting their stability on the microsecond time scale |
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| Beschreibung: | Date Completed 08.01.2008 Date Revised 16.10.2018 published: Print-Electronic Citation Status MEDLINE |
| ISSN: | 1520-5827 |