Abstract − Analytical Sciences, 30(2), 305 (2014).
SU-8-based Flexible Amperometric Device with IDA Electrodes to Regenerate Redox Species in Small Spaces
Yusuke KANNO,* Takehito GOTO,* Kosuke INO,* Kumi Y. INOUE,* Yasufumi TAKAHASHI,** Hitoshi SHIKU,* and Tomokazu MATSUE*,**
*Graduate School of Environmental Studies, Tohoku University, 6-6-11 Aramaki, Aoba, Sendai 980-8579, Japan
**WPI-Advanced Institute for Materials Research, Tohoku University, 6-6-11 Aramaki, Aoba, Sendai 980-8579, Japan
**WPI-Advanced Institute for Materials Research, Tohoku University, 6-6-11 Aramaki, Aoba, Sendai 980-8579, Japan
A flexible sensor based on SU-8 photoresist was fabricated and its electrochemical performance was investigated using cyclic voltammetry. The device consisted of interdigitated array (IDA) electrodes on an SU-8 layer. It exhibited a clear electrochemical response during redox cycling of ferrocenemethanol at the IDA electrodes. Since the device was flexible, it could be inserted into a narrow bent space to monitor electrochemical responses. The observed electrochemical behavior was found to be consistent with that predicted by simulations based on redox compound diffusion.
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