Liesegang Patterns Engineered by a Chemical Reaction Assisted by Complex Formation

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• 作者：Hideki Nabika ; Mami Sato ; Kei Unoura
• 刊名：Langmuir
• 出版年：2014
• 出版时间：May 13, 2014
• 年：2014
• 卷：30
• 期：18
• 页码：5047-5051
• 全文大小：257K
• 年卷期：v.30,no.18(May 13, 2014)
• ISSN：1520-5827

文摘

Liesegang rings based on a chemical reaction, not a conventional precipitation reaction, have been developed by appropriate design of the nucleation dynamics in a system involving complex formation in a matrix. The periodic and concentric rings consisted of well-dispersed Ag nanoparticles with diameters of a few nanometers. The approach modeled here could be applied to form novel micropatterns out of inorganic salts, metal nanoparticles, organic nanocrystals, or polymeric fibers, and it could also offer a scaffold for novel models of a wide variety of reaction-diffusion phenomena in nature.