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The Effect of 3-Thiopheneacetic Acid in the Polymerization of a Conductive Electrotextile for Use in Biosensor Development
Biosystems and Agricultural Engineering, Michigan State University, 524 S. Shaw Lane, 115 Farrall Hall, East Lansing, MI 48824, USA
Food Protection Team, U.S. Army Natick Soldier Research, Development, and Engineering Center (NSRDEC), Natick, MA 01760, USA
Macromolecular Sciences and Engineering Team, U.S. Army NSRDEC, Natick, MA 01760, USA
* Author to whom correspondence should be addressed.
Received: 16 June 2013; in revised form: 15 July 2013 / Accepted: 22 July 2013 / Published: 29 July 2013
Abstract: Investigations were conducted to develop an electrotextile using a nonwoven polypropylene fiber platform conformally coated in a conductive, functionalized copolymer of polypyrrole and 3-thiopheneacetic acid (3TAA). The objectives of this study were to determine: (1) if the inclusion of 3TAA in the polymerization process would have an effect on the availability of binding sites in the high-surface area electrotextile for biorecognition elements and (2) how the increase in the concentration of 3TAA would affect the physical characteristics of the coating, resistivity of the sample and availability of binding sites. It was found that the addition of 3TAA to the polymerization process resulted in an increase in the size of the polypyrrole coating, as well as the material resistivity and available binding sites for biorecognition elements. These factors were used to determine which of the tested concentrations was best for biosensor development. A polymer coated membrane sample containing a concentration within the range of 10–50 mg/mL of 3TAA was selected as the best for future biosensor work.
Keywords: 3-thiopheneacetic acid; electrotextile; biosensor; polypyrrole; antibody attachment
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McGraw, S.K.; Alocilja, E.; Senecal, A.; Senecal, K. The Effect of 3-Thiopheneacetic Acid in the Polymerization of a Conductive Electrotextile for Use in Biosensor Development. Biosensors 2013, 3, 286-296.
McGraw SK, Alocilja E, Senecal A, Senecal K. The Effect of 3-Thiopheneacetic Acid in the Polymerization of a Conductive Electrotextile for Use in Biosensor Development. Biosensors. 2013; 3(3):286-296.
McGraw, Shannon K.; Alocilja, Evangelyn; Senecal, Andre; Senecal, Kris. 2013. "The Effect of 3-Thiopheneacetic Acid in the Polymerization of a Conductive Electrotextile for Use in Biosensor Development." Biosensors 3, no. 3: 286-296.