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Microtubule sensors and sensor array based on polyaniline synthesized in the presence of poly(styrene sulfonate)

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Title Microtubule sensors and sensor array based on polyaniline synthesized in the presence of poly(styrene sulfonate)
 
Creator KANUNGO, M
KUMAR, A
CONTRACTOR, AQ
 
Subject conducting polyaniline
acid)
films
polymerization
oxidation
aniline
 
Description Microtubule sensors for glucose, urea, and triglyceride were fabricated based on poly(styrene sulfonate)-polyaniline (PSS-PANI) composites synthesized within the pores of track-etched polycarbonate membranes. The synthesis of a sufficiently thick and conducting PSS-PANI film at pH 5 provided the advantage of immobilizing enzymes during polymerization. This resulted in the improvement of sensor response for urea and triglyceride by a factor of similar to10(2) with a significant increase in the linear region of response compared to polyaniline-based sensors, where the enzymes were immobilized by physical adsorption after the polymerization. The sensors based on urea and triglyceride were found to have a higher linear range of response, better sensitivity, improved multiple use capability, and faster response time compared to the potentiometric and amperometric sensors based on polyaniline. A microtubule sensor array for glucose, urea, and triglyceride based on PSS-PANI was fabricated by immobilization of three different sets of enzymes on three closely spaced devices and its response was found to be free from cross-interference when a sample containing a mixture of the above analytes was analyzed in a single measurement.
 
Publisher AMER CHEMICAL SOC
 
Date 2011-07-14T11:47:36Z
2011-12-26T12:48:22Z
2011-12-27T05:34:27Z
2011-07-14T11:47:36Z
2011-12-26T12:48:22Z
2011-12-27T05:34:27Z
2003
 
Type Article
 
Identifier ANALYTICAL CHEMISTRY, 75(21), 5673-5679
0003-2700
http://dx.doi.org/10.1021/ac034537h
http://dspace.library.iitb.ac.in/xmlui/handle/10054/3945
http://hdl.handle.net/10054/3945
 
Language en