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Analytical Letters Volume 37, 2004 - Issue 3
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Chemical and Biosensors

Fabrication and Characterization of Polymer‐Based Microchip Integrated with NH4+‐ISFET Using a Small Diameter Wire as a Template of Channel

Dr. Takashi Masadome Department of Chemical Science and Engineering, Ariake National College of Technology, Omuta, Fukuoka, 836‐8585, JapanCorrespondence[email protected]
,
Mayumi Ishikawa Department of Chemical Science and Engineering, Ariake National College of Technology, Omuta, Fukuoka, 836‐8585, Japan
&
Shin‐ichi Wakida Human Stress Signal Research Center, National Institute of Advanced Industrial Science and Technology (AIST), Midorigaoka, Ikeda, Japan
Pages 377-384 | Received 23 Oct 2003, Accepted 28 Oct 2003, Published online: 22 Aug 2007
 
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Abstract

The NH4 +‐ion‐sensitive field effect transistor (ISFET) in a batch system and the polymer‐based microchip with NH4 +‐ISFET showed almost the similar performance in low detection limits, dynamic range of the calibration curve, the slope sensitivity, and the stability of the potential. From the results, the polymer‐based microchip with ISFET fabricated using polystyrene plates and stainless wires as a template of channel can be useful for several applications in a microchip technology.

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