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Langmuir. 2012 Feb 14;28(6):3063-6. doi: 10.1021/la203923d. Epub 2012 Feb 2.

Post-self-assembly cross-linking of molecular nanofibers for oscillatory hydrogels.

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Department of Chemistry, Brandeis University, 415 South Street, Waltham, Massachusetts 02454, United States.


After a polymerizable hydrogelator self-assembles in water to form molecular nanofibers, post-self-assembly cross-linking allows the catalyst of the Belousov-Zhabotinsky (BZ) reaction to be attached to the nanofibers, resulting in a hydrogel that exhibits concentration oscillations, spiral waves, and concentric waves. In addition to the first report of the observation of BZ spiral waves in a hydrogel that covalently integrates the catalyst, we suggest a new approach to developing active soft materials as chemical oscillators and for exploring the correlation between molecular structure and far-from-equilibrium dynamics.


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