Journal
NANO LETTERS
Volume 14, Issue 5, Pages 2466-2470Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl500144k
Keywords
Gold nanoparticles; plasmon coupling; disassembly; stress; colorimetric sensor; polymer deformation
Categories
Funding
- U.S. National Science Foundation [CHE-1308587]
- Direct For Mathematical & Physical Scien [1308587] Funding Source: National Science Foundation
- Division Of Chemistry [1308587] Funding Source: National Science Foundation
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We report the development of a stress-responsive colorimetric film that can memorize the stress it has experienced. The system is designed by taking advantage of the plasmonic shift associated with the disassembly of one-dimensional gold nanoparticle chains driven by the plastic deformation of the surrounding polymer matrix. By modifying the plasticity of the polymer, we demonstrate that the plasmonic shift and colorimetric change respond to a large range of stresses. This novel pressure indicating film can be used to capture and record the pressure distribution and magnitude between two contacting or impacting surfaces by outputting color information.
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