Spatiotemporal pattern formation in precipitation reaction-diffusion (RD) systems was first observed as concentric rings by R. E. Liesegang in 1896. Later on, other structures have been reported, including: directly spaced ...
An example of self-organization phenomena is the periodic 'Liesegang' banding produced when two electrolytes forming a sparingly soluble salt diffuse into each other in a gel medium. Liesegang systems have been studied for ...
Periodic precipitation yields beautiful patterns that are similar to some natural self-organization structures, notably the process of rock formation in Geochemistry. In this so-called Liesegang phenomenon, an outer ...