Depletion-induced crystallization in colloidal rod-sphere mixtures

被引：122

作者：

Koenderink, GH

Vliegenthart, GA

Kluijtmans, SGJM

van Blaaderen, A

Philipse, AP

Lekkerkerker, HNW

机构：

[1] Univ Utrecht, Debye Inst, Vant Hoff Lab Phys & Colloid Chem, NL-3584 CH Utrecht, Netherlands

[2] FOM, Inst Atom & Mol Phys, NL-1009 DB Amsterdam, Netherlands

来源：

LANGMUIR | 1999年 / 15卷 / 14期

关键词：

D O I：

10.1021/la990038t

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report the observation of depletion-induced phase separation in a mixture of colloidal silica spheres and colloidal silica rods with light microscopy and confocal scanning laser microscopy. We show that very low rod concentrations are sufficient to induce sphere crystallization. This qualitatively agrees with theoretical predictions and demonstrates that rodlike colloidal particles are highly efficient depletion agents.

引用

收藏

页码：4693 / 4696

页数：4

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