20.500.12556/RUL-163379
Estimation of direct interaction between membrane inclusions
Within the statistical mechanical description or the phospholipid bilayer membrane, each monolayer is described as composed of patches containing very many inclusions that are characterized by intrinsic curvatures. A patch is subjected to local membrane curvature whereas summing up the free energies of the patches yields the free energy of the membrane. The origin of the single inclusion energy is the mismatch between the intrinsic curvature of the inclusion and the local curvature of the membrane, however, also direct interactions between inclusions contribute to the free energy. Here we upgrade the description by elaborating direct interactions between inclusions. We assume that the direct interactions are subject to van der Waals forces acting on the interfaces between the inclusion and its nearest neighbours. The expression for the interaction depends on the geometry of the inclusions, distance between them and Hamaker constant. The estimated direct interaction between inclusions of the size of small membrane rafts (20 nm) distanced for 0.2 nm with Hamaker constant 710-21J is W1800 kT.
membrane free energy
membrane curvature
membrane shape
shape of the phospholipid membrane
membrane biophysics
hamaker constant
true
false
true
Angleški jezik
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Drugo
2024-10-04 14:27:21
2024-10-04 14:27:21
2024-10-09 03:48:25
0000-00-00 00:00:00
2024
0
0
Str. 85-90
0000-00-00
Zaloznikova
NiDoloceno
NiDoloceno
0000-00-00
0000-00-00
0000-00-00
577
10.55295/PSL.11.2024.10
210332931
205044227
RAZ_Kralj-Iglic_Veronika_2024.pdf
RAZ_Kralj-Iglic_Veronika_2024.pdf
1
4C7F4C1FA1D0332E8E45D937AB0DA65E
9b40122a369fe76f387f3e6b406b23613ca618c437b7464b70abcbfa0487423c
d8073c1d-824b-11ef-b232-0050569b8976
https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=192981
https://www.zf.uni-lj.si/images/zalozba/Sokratska_11/10_Kralj-Igli%C4%8D_Veronika.pdf
0
95e5350c-824c-11ef-b232-0050569b8976
https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=192984
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