Funding for this work was provided by the Army Research Office Young Investigator Program. The authors thank Edwin P. Chan and Kyriaki Kalaitzidou for insightful discussions, and acknowledge NSF-MRSEC Central Facilities for use of their SEM, as well as Professor McCarthy's group for use of their oxygen-plasma cleaner.
Article first published online: 5 NOV 2007
Copyright © 2007 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Volume 19, Issue 21, pages 3589–3593, November, 2007
How to Cite
Holmes, D. P. and Crosby, A. J. (2007), Snapping Surfaces. Adv. Mater., 19: 3589–3593. doi: 10.1002/adma.200700584
- Issue published online: 5 NOV 2007
- Article first published online: 5 NOV 2007
- Manuscript Revised: 19 APR 2007
- Manuscript Received: 8 MAR 2007
- Army Research Office Young Investigator Program
- Polymer surfaces;
- Stimuli-responsive materials;
- Surface functionalization
A simple, robust, biomimetic responsive surface based on controlled elastic instabilities using an array of microlens shells as a surface geometry is presented. The snap-through transition is dictated by geometry, length-scale, and materials properties, thus the transition time, triggering sensitivity, and magnitude change are highly tunable. Their potential use as a rapidly switchable optical device is illustrated.