Adhesion and deformation of a single latex particle

被引：27

作者：

Portigliatti, M ^{[1
]}

Koutsos, V ^{[1
]}

Hervet, H ^{[1
]}

Léger, L ^{[1
]}

机构：

[1] Coll France, CNRS, URA 792, Phys Mat Condensee Lab, F-75231 Paris, France

来源：

LANGMUIR | 2000年 / 16卷 / 16期

关键词：

D O I：

10.1021/la000377i

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The rupture of contact between a single latex particle and an atomic force microscope tip has been investigated at nanoscopic scales by monitoring retracting force-distance curves. The particle is highly elongated, and an intermittent rupture proceeds at the tip/latex interface. The minimal force of detachment, the separation energy, and the long distance shape of the curve depend on the tip velocity and are strongly sensitive to the presence of nearby particles. This indicates that viscoelastic dissipations occur over spatial scales depending on the particles organization. The formation of long nanofilaments seems to be a specific dissipative mechanism prominent for isolated particles.

引用

页码：6374 / 6376

页数：3

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