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Design and development of novel polymer based microsensors and microactuators

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Item Summary

Title: Design and development of novel polymer based microsensors and microactuators
Authors: Vinod, Soumya
Keywords: novel polymer
Issue Date: Dec 2010
Publisher: [Honolulu] : [University of Hawaii at Manoa], [December 2010]
Abstract: This research focuses on the development of cost-effective microtransducers using polymer technology that could be used for specific applications. The scope of this research includes developing a sensor for monitoring structural health of reinforced concrete and a novel actuator for microfluidic and renewable-energy applications. The corrosion sensor works on the principle of skin effect and the resistance characteristics are studied for a frequency range of 10 kHz to 200 kHz. Proof-of-concept is performed for the sensor to be embedded in the rebar. The work on the microfluidic actuator involves the design, simulation and fabrication of a microvalve based on pH-sensitive hydrogel which is naturally closed when consuming no power. The swelling/deswelling of the hydrogel in basic/acidic buffer medium is used as the actuation mechanism for the microvalve. The hydrogel expansion and contraction in the control channel causes the valve to open and close with sub-hour response time. The fabrication uses replica molding and photolithography techniques.
Description: M.S. University of Hawaii at Manoa 2010.
Includes bibliographical references.
Appears in Collections:M.S. - Electrical Engineering

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