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Stretchable Bioelectrodes

Published online by Cambridge University Press:  01 February 2011

Pinghung Wei  and
B. Ziaie
Pinghung Wei
Affiliation:
pwei@purdue.edu, Purdue University, W. Lafayette, Indiana, United States
B. Ziaie
Affiliation:
bziaie@purdue.edu
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Abstract

In this paper, we present a stretchable electrode array for studying cell behavior subjected to mechanical strain. The electrode array consists of four gold nail-head pins (250μm tip diameter and 1.75mm spacing) or tungsten microwires (25.4μm in diameter) inserted into a polydimethylsiloxane (PDMS) platform (25.4×25.4mm2). Fusible indium alloy (liquid at room temperature) filled microchannels were used to connect the electrodes to the outside, thus providing the required stretchability. The electrodes were able to withstand strains of up to 40%. Repeated strain tests of several hundred cycles did not reveal any failure, illustrating the robustness of the platform. Mice cardiomyocytes and chick neurons were successfully cultured onto the platform.

Keywords

biomedicalelastic propertieselectrical properties
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1271: Symposium JJ – Stretchable Electronics and Conformal Biointerfaces , 2010 , 1271-JJ01-04
Copyright
Copyright © Materials Research Society 2010

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References

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