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| Content Provider | Springer Nature Link |
|---|---|
| Author | Kheyfets, B. B. Mukhin, S. I. |
| Copyright Year | 2011 |
| Abstract | Two-phase lipid membrane is modeled with lipids of different bending rigidity of hydrophobic tails: domains consist of “rigid” lipid liquid condensed phase and are surrounded by the “flexible” lipid liquid expanded phase. Within the framework of the earlier proposed model of flexible strings, entropic contribution not including mismatch energy is calculated analytically. “Entropic” line tension is found to be weakly dependent on the domain radius. According to the model, it is shown that merely “entropic mismatch” is not enough for the domain formation. In the paper it is assumed that lipids at the boundary, on the average, have larger area than the ones in the volume. This leads to an increase of energy of boundary lipids. Cases of lipids with nearly the same bending rigidities and with strongly different ones are considered. Free energy is calculated using Taylor expansion on the difference of area of lipids at the domain’s boundary and in the volume. Based on the calculated boundary energy domain stability in the finite system is estimated. |
| Starting Page | 392 |
| Ending Page | 399 |
| Page Count | 8 |
| File Format | |
| ISSN | 19907478 |
| Journal | Biochemistry (Moscow) Supplement Series A: Membrane and Cell Biology |
| Volume Number | 5 |
| Issue Number | 4 |
| e-ISSN | 19907494 |
| Language | English |
| Publisher | SP MAIK Nauka/Interperiodica |
| Publisher Date | 2011-12-27 |
| Publisher Place | Dordrecht |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | lipid membrane raft line tension flexible string model Cell Biology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Cell Biology Biochemistry Biophysics |
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