Ionic-like behavior of oppositely charged nanoparticles

被引：103

作者：

Kalsin, Alexander M. ^{[1
]}

Kowalczyk, Bartlomiej ^{[1
]}

Smoukov, Stoyan K. ^{[1
]}

Klajn, Rafal ^{[1
]}

Grzybowski, Bartosz A. ^{[1
]}

机构：

[1] Northwestern Univ, Dept Biol & Chem Engn, Evanston, IL 60208 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2006年 / 128卷 / 47期

关键词：

D O I：

10.1021/ja0642966

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Mixtures of oppositely charged nanoparticles of various sizes and charge ratios precipitate only at the point of electroneutrality. This phenomenonspecific to the nanoscale and reminiscent of threshold precipitation of ionsis a consequence of the formation of core-and-shell nanoparticle aggregates, in which the shells are composed of like-charged particles and are stabilized by efficient electrostatic screening. Copyright © 2006 American Chemical Society.

引用

页码：15046 / 15047

页数：2

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