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Proceedings Paper

Bio-inspired electric cilia development for biomedical applications: use of ionic electro-active polymer, nanowire arrays, and micro-stereo-lithography
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Paper Abstract

This presentation demonstrates the fabrication of bio-inspired electric cilia structures using bottom-up hetero-nanowires and ionic electro active polymer on flexible polyimide substrates. In order to obtain sensing function of fluid velocity in meso-scale vessels and minimally disturb original flow condition, parallel arrays of "electronic cilium" with the size of few micrometers in length and few hundreds nanometers in diameter are vertically fabricated on a thin flexible film. For active layers, ionic electro active polymer has been applied on hetero-structured nanowires, which provide low Young's modulus and sensitive to bending moment by lateral force in fluid. This research works include the characterization of electro active polymer fabrication processes on nanowires and their mechanical properties by atomic force microscopy and electrochemical analysis tools. In addition, a three-dimensional microfluidic channel fabrication method using micro-stereo-lithography (MSL) is introduced in this presentation, which is an efficient method to simulate fluid conditions in blood vessels.

Paper Details

Date Published: 11 April 2007
PDF: 9 pages
Proc. SPIE 6528, Nanosensors, Microsensors, and Biosensors and Systems 2007, 652804 (11 April 2007); doi: 10.1117/12.717660
Show Author Affiliations
Hargsoon Yoon, Univ. of Arkansas (United States)
Vasuda Ramachandran, Univ. of Arkansas (United States)
Devesh C. Deshpande, Univ. of Arkansas (United States)
Vijay K. Varadan, Univ. of Arkansas (United States)

Published in SPIE Proceedings Vol. 6528:
Nanosensors, Microsensors, and Biosensors and Systems 2007
Vijay K. Varadan, Editor(s)

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