Liesegang patterns engineered by a chemical reaction assisted by complex formation.
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.
Department of Material and Biological Chemistry, Faculty of Science, Yamagata University , 1-4-12 Kojirakawa, Yamagata 990-8560, Japan.
Hideki
H
Nabika
Mami
M
Sato
Kei
K
Unoura