Journal
NATURE COMMUNICATIONS
Volume 5, Issue -, Pages -Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/ncomms5899
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Funding
- ONR YIP Award [N00014-14-1-0528]
- NSF CAREER Award [CMMI-1253495]
- NSF Grant [CMMI-1200515]
- NSF Triangle MRSEC [DMR-1121107]
- US Army Research Laboratory
- Army Research Office [W911NF-11-1-0071]
- Duke Center for Bimolecular and Tissue Engineering Grant [NIH-2032422]
- Directorate For Engineering
- Div Of Civil, Mechanical, & Manufact Inn [1253495] Funding Source: National Science Foundation
- Div Of Civil, Mechanical, & Manufact Inn
- Directorate For Engineering [1463732] Funding Source: National Science Foundation
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Cephalopods can display dazzling patterns of colours by selectively contracting muscles to reversibly activate chromatophores - pigment-containing cells under their skins. Inspired by this novel colouring strategy found in nature, we design an electro-mechano-chemically responsive elastomer system that can exhibit a wide variety of fluorescent patterns under the control of electric fields. We covalently couple a stretchable elastomer with mechanochromic molecules, which emit strong fluorescent signals if sufficiently deformed. We then use electric fields to induce various patterns of large deformation on the elastomer surface, which displays versatile fluorescent patterns including lines, circles and letters on demand. Theoretical models are further constructed to predict the electrically induced fluorescent patterns and to guide the design of this class of elastomers and devices. The material and method open promising avenues for creating flexible devices in soft/wet environments that combine deformation, colorimetric and fluorescent response with topological and chemical changes in response to a single remote signal.
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