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Permanent link (DOI): https://doi.org/10.7939/R3PV6BJ3Q

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Remote activation of a microactuator using a photo-responsive nanoparticle-polymer composite Open Access

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Other title
Subject/Keyword
Gold nanoparticles, stimulus response materials, microvalve, microfluidics, microspheres
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Zeberoff, Anthony F
Supervisor and department
Elias, Anastasia (Chemical and Materials Engineering)
Examining committee member and department
Chung, Hyun Joong (Chemical and Materials Engineering)
Thundat, Thomas (Chemical and Materials Engineering)
Department
Department of Chemical and Materials Engineering
Specialization
Materials
Date accepted
2013-07-17T15:47:30Z
Graduation date
2013-11
Degree
Master of Science
Degree level
Master's
Abstract
Stimulus response materials are a class of novel materials that are currently being explored in various technologies, including biomedical devices and components, food packaging, fabrics, energy harvesting and conversion, and other elementary components such as sensors and actuators. Hybrid organic-inorganic materials such as nanoparticle-polymer composites are attractive candidates as their properties can be significantly tuned for particular applications where selectivity and localized responses are critical factors. In this work we developed and optimized a photo-responsive microactuator that can operate selectively to a specific wavelength of light. The photo-responsive microactuator is comprised of monodispersed microspheres that contain gold nanoparticles. Upon irradiation, these microspheres transduce optical energy to thermal energy, driving a localized phase change in the matrix in which they are embedded. Our remotely powered microactuator can be further realized in applications where decoupling the physical connection of the energy/control source from the actuating component is necessary.
Language
English
DOI
doi:10.7939/R3PV6BJ3Q
Rights
Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
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