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Communication

Amplification of Changes of a Thin Film's Macromolecular Structure into Macroscopic Reaction−Diffusion Patterns

Supporting Info

Agnieszka Bitner, Marcin Fiałkowski, Stoyan K. Smoukov, Christopher J. Campbell, and Bartosz A. Grzybowski*

Department of Chemical and Biological Engineering and Northwestern Institute for Complexity, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208

J. Am. Chem. Soc., 2005, 127 (19), pp 6936–6937

DOI: 10.1021/ja051128p

Publication Date (Web): April 23, 2005

In papers with more than one author, the asterisk indicates the name of the author to whom inquiries about the paper should be addressed.

, grzybor@northwestern.edu

Abstract

A reaction−diffusion process induced from a micronetwork geometry amplifies changes in the molecular structure of a thin gel film into macroscopic readout patterns. When the gel undergoes a helix-to-coil phase transition, the patterns formed by RD switch from symmetry-broken to symmetric ones. Theoretical analysis explains how the system reconfigures internally in response to mass transfer between the applied network and the probed film.

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