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Proceedings Paper

Biomedical applications of electroactive polymers and shape-memory alloys
Author(s): Seung-Ki Lee; Sang-Jo Lee; Ho-Jeong An; Seung-Eun Cha; Jun Keun Chang; Byungkyu Kim; James Jungho Pak
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Paper Abstract

Among many kinds of polymer materials, electronic conductive material, that is polypyrrole, shows potential possibility for bio-relate actuator materials. However, it may be an impediment for practical use in polypyrrole actuator that polypyrrole usually requires electrolyte solution for actuation. Our first research theme is focused on this problem solving. We have investigated many kinds of solid polymer electrolyes for the substitution of electrolyte solution. Our goals are to find the stable solid electrolyte in the air, to establish the reliable fabrication process of it and to apply it for micropump application. Besides actuators, the reduction and oxidation property of polypyrrole can be exploited for active drug delivery systems by the control of structural deformation of it. We have investigated this kind of new and bio-related possibility of polypyrrole. Shape memory alloy has another possibility in the biomedical field. Due to its inherent excellent advantages as actuator materials, it can be used for micro active intravascular catheter. We have developed thin tube type bending actuator using shape memory alloy and characterized its performance by in-vivo test.

Paper Details

Date Published: 11 July 2002
PDF: 15 pages
Proc. SPIE 4695, Smart Structures and Materials 2002: Electroactive Polymer Actuators and Devices (EAPAD), (11 July 2002); doi: 10.1117/12.475196
Show Author Affiliations
Seung-Ki Lee, Dankook Univ. (South Korea)
Sang-Jo Lee, Dankook Univ. (South Korea)
Ho-Jeong An, Korea Univ. (South Korea)
Seung-Eun Cha, Korea Univ. (South Korea)
Jun Keun Chang, Seoul National Univ. (South Korea)
Byungkyu Kim, Korea Institute of Science and Technology (South Korea)
James Jungho Pak, Korea Univ. (South Korea)

Published in SPIE Proceedings Vol. 4695:
Smart Structures and Materials 2002: Electroactive Polymer Actuators and Devices (EAPAD)
Yoseph Bar-Cohen, Editor(s)

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