The interaction of charged nanoparticles at interfaces

被引：4
|
作者：
Poulos, Andreas S. [1 ]
Constantin, Doru [1 ]
Davidson, Patrick [1 ]
Imperor-Clerc, Marianne [1 ]
Pansu, Brigitte [1 ]
Rouziere, Stephan [1 ]
机构：
[1] Univ Paris 11, CNRS, Phys Solides Lab, UMR 8502, F-91405 Orsay, France
来源：
EPL | 2012年 / 100卷 / 01期
关键词：
SIMULATIONS; EQUATION; SCATTERING; STABILITY; MEMBRANES; BEAMLINE; SYSTEMS; ESRF;
D O I：
10.1209/0295-5075/100/18002
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We study charged nanoparticles adsorbed onto surfactant bilayers using small-angle scattering of synchrotron radiation. The in-plane interaction of the particles is well described by a DLVO component (measured independently in solution) and a repulsive dipolar interaction due to the presence of the interface, with an amplitude close to the theoretical prediction. We prove that charged nanoparticles at soft interfaces are well described by the classical model of Poisson-Boltzmann and van der Waals terms; as a corollary, they do not experience the like-charge attraction reported in the literature for some systems of micron-sized spheres at interfaces. Copyright (C) EPLA, 2012
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页数：5
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