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Advances in chemical sensors, biosensors and microsystems based on ion-sensitive field-effect transistor

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Title Advances in chemical sensors, biosensors and microsystems based on ion-sensitive field-effect transistor
 
Creator Khanna, V K
 
Subject ISFET
Chemical sensor
Biosensor
Microsystem
Analytical instrumentation
 
Description 345-353
Introduced as a tool for electrophysiology three and a half decades ago, the ion-sensitive field-effect transistor (ISFET) is a generic electrochemical structure offering a family of analytical devices for applications in agriculture, food processing, medical diagnostics, pharmaceuticals, paper, pulp and chemical industries, and environmental control. Besides its use as a chemical sensor, this device has also served as the electrical transduction element for many enzyme and immunological biosensors. This paper presents the current status of this microelectronic device in terms of the theoretical understanding of its operational mechanism, the techniques used for its fabrication and the measurement circuits used in instrumentation. The state of the art of ISFET as a chemical and biosensor is examined, major problems in this area are discussed, perspectives of recent interesting developments are described and future research directions are indicated. Highlights of the work done on ISFET at our institute are presented.
 
Date 2008-10-31T10:20:12Z
2008-10-31T10:20:12Z
2007-04
 
Type Article
 
Identifier 0019-5596
http://hdl.handle.net/123456789/2321
 
Language en_US
 
Relation C 12, C 25, G 01, H01 L
 
Publisher CSIR
 
Source IJPAP Vol.45(4) [April 2007]