Microfabricated artificial-muscle-based microvalve array

KeQin He; Serban F. Peteu; Marc J. Madou

doi:10.1117/12.443042

28 September 2001 Microfabricated artificial-muscle-based microvalve array

KeQin He, Serban F. Peteu, Marc J. Madou

Proceedings Volume 4560, Microfluidics and BioMEMS; (2001) https://doi.org/10.1117/12.443042
Event: Micromachining and Microfabrication, 2001, San Francisco, CA, United States

Abstract

Artificial muscle is defined herein as a blend of a hydrogel and a redox polymer, which dramatically swells and shrinks under environmental stimuli. This actuator can be applied to micro fabricating valves for controlled delivery systems. Previous work in our group has shown that a blend of poly(2- hydroxy ethyl)methacrylate (polyHEMA) and polyaniline displayed significant swelling and shrinking upon application of an electrochemical bias. In this type of artificial muscle, polyaniline, a redox polymer, acts as the 'electronic backbone' for transferring for most of the swelling and shrinking. However, polyHEMA showed only weak swelling an shrinking in a chemimechanical system, thus purpose of the current study is to enhance the artificial muscle actuating properties. An optimized hydrogel swelled up to 1000 percent in alkaline solution and contracted 70 percent in acid solution. An artificial muscle microvalve array was also micro fabricated and tested. These results could lead to a smart wireless drug delivery implanted system.

Citation Download Citation

KeQin He, Serban F. Peteu, and Marc J. Madou "Microfabricated artificial-muscle-based microvalve array", Proc. SPIE 4560, Microfluidics and BioMEMS, (28 September 2001); https://doi.org/10.1117/12.443042

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available