In this paper the problem of surface charge of the lipid membrane  is considered. It is shown that the membrane surface is negatively charged. Negative ions are in potential wells formed by the dipole heads of membrane phospholipids. The binding energy of the ion with the membrane surface is much greater than its thermal energy. A self-consistent model of the potential in solution is developed, and a stationary charge density on the membrane surface is found. The estimates given in the paper show that the potential difference across the membrane of the unexcited axon (resting potential) can be explained by the difference in surface densities of the bound charges on the inner and outer surfaces of the membrane .
In this paper the problem of surface charge of the lipid membrane immersed in the physiological solution is considered. It is shown that both side of the bilayer phospholipid membrane surface are negatively charged. A self-consistent model of the potential in solution is developed, and a stationary charge density on the membrane surface is found. It is shown that the ions of the surface charge are in a relatively deep (as compared to kBT) potential wells, which are localized near the dipole heads of phospholipid membrane. It makes impossible for ions to slip along the membrane surface. Simple experiments for verifying the correctness of the considered model are proposed. A developed approach can be used for estimations of the surface charges on the outer and inner membrane of the cell .
A
immersed in the physiological solution
R
the membrane surface is
both side of the bilayer phospholipid membrane surface are
D
Negative ions are in potential wells formed by the dipole heads of membrane phospholipids. The binding energy of the ion with the membrane surface is much greater than its thermal energy.
R
The estimates given in the paper show that the potential difference across the membrane of the unexcited axon (resting potential) can be explained by the difference in surface densities of the bound
It is shown that the ions of the surface charge are in a relatively deep (as compared to kBT) potential wells, which are localized near the dipole heads of phospholipid membrane. It makes impossible for ions to slip along the membrane surface. Simple experiments for verifying the correctness of the considered model are proposed. A developed approach can be used for estimations of the surface
R
inner and outer surfaces of the membrane
outer and inner membrane of the cell