Nanoparticle Oscillations and Fronts

被引：111
|
作者：
Lagzi, Istvan [1 ]
Kowalczyk, Bartlomiej [1 ]
Wang, Dawei [1 ,2 ]
Grzybowski, Bartosz A. [1 ]
机构：
[1] Northwestern Univ, Dept Chem, Dept Chem & Biol Engn, Evanston, IL 60208 USA
[2] NW Polytech Univ, Sch Mat Sci & Engn, Xian 710072, Peoples R China
来源：
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2010年 / 49卷 / 46期
关键词：
front propagation; nanoparticles; nonlinear chemical dynamics; oscillations; self-assembly; OPPOSITELY CHARGED NANOPARTICLES; SELF-ASSEMBLED MONOLAYERS; METAL NANOPARTICLES; PH OSCILLATIONS; AGGREGATION; FORCES; PRECIPITATION; PATTERNS; DESIGN; SYSTEM;
D O I：
10.1002/anie.201004231
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Rhythmic nanoparticles: Chemical oscillations can be coupled to the dynamic self-assembly of nanoparticles. Periodic pH changes translate into protonation and deprotonation of the ligands that stabilize the nanoparticles, thus altering repulsive and attractive interparticle forces. In a continuous stirred-tank reactor, rhythmic aggregation and dispersion is observed; in spatially distributed media, propagation of particle aggregation fronts is seen. © 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页码：8616 / 8619
页数：4
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