Experimental evidence of the electrostatic contribution to the bending rigidity of charged membranes

被引：31

作者：

Delorme, N. ^{[1
]}

Bardeau, J. -F.

Carriere, D.

Dubois, M.

Gourbil, A.

Mohwald, H.

Zemb, Th.

Fery, A.

机构：

[1] Max Planck Inst Colloids & Interfaces, D-14424 Potsdam, Germany

[2] Univ Maine, Lab Phys Etat Condense, UMR 6087, F-72085 Le Mans 09, France

[3] CEA Saclay, Serv Chim Mol, LIONS, F-91191 Gif Sur Yvette, France

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2007年 / 111卷 / 10期

关键词：

D O I：

10.1021/jp068252v

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We address the issue of the origin of the bending rigidity of a charged membrane formed from amphiphilic molecules. Electrostatic effects are investigated by direct measurement of the force necessary to deform a catanionic membrane as function of the ionic strength of the medium by means of an atomic force microscope (AFM). Using continuum mechanical modeling of membrane deformation, we derive the bending rigidity of the catanionic membranes and monitor for the first time its decrease in response to increasing salt concentration.

引用

页码：2503 / 2505

页数：3

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