Single-file diffusion of colloids in one-dimensional channels

被引：416

作者：

Wei, QH ^{[1
]}

Bechinger, C ^{[1
]}

Leiderer, P ^{[1
]}

机构：

[1] Univ Konstanz, Fac Phys, D-78457 Constance, Germany

来源：

SCIENCE | 2000年 / 287卷 / 5453期

关键词：

D O I：

10.1126/science.287.5453.625

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Single-file diffusion, prevalent in many processes, refers to the restricted motion of interacting particles in narrow micropores with the mutual passage excluded. A single-filing system was developed by confining colloidal spheres in one-dimensional circular channels of micrometer scale. Optical video microscopy study shows evidence that the particle self-diffusion is non-Fickian for long periods of time. In particular, the distribution of particle displacement is a Gaussian function.

引用

页码：625 / 627

页数：3

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