Fabrication of Carboxylated Conducting Polymer/CNTs Composites Thin Films for Immunosensor Application

• Published in: Molecular Crystals and Liquid Crystals Vol. 580; no. 1; pp. 7 - 14
• Main Authors: Netsuwan, P., Sriwichai, S., Phanichphant, S., Baba, A., Shinbo, K., Kato, K., Kaneko, F.
• Format: Journal Article
• Language: English
• Published: Philadelphia Taylor & Francis Group 01.01.2013; Taylor & Francis Ltd
• Subjects: Benzothiophene-2-propionic acid; carbon nanotubes; Carboxylated; composite; Composite materials; Conducting polymers; Derivatives; electrochemical-surface plasmon resonance; electropolymerization; Immunosensors; Nanotubes; Particulate composites; Polymer matrix composites; Polymerization; Spectroscopy; thianaphthene-2-carboxylic acid; Thin films
• ISSN: 1542-1406; 1563-5287; 1527-1943
• DOI: 10.1080/15421406.2013.803890

Electropolymerization of carboxylated conducting polymer/carbon nanotubes (CNTs) composites thin films has been studied by in situ electrochemical-surface plasmon resonance (EC-SPR) spectroscopy. Two derivatives of benzothiophene, thianaphthene-2-carboxylic acid and benzothiophene-2-propionic acid, composited with CNTs were electropolymerized in an acetonitrile with the potential range between 0 and 1.2 V at scan rate of 20 mV/s. The obtained films were characterized by in situ EC-SPR spectroscopy, UV-vis absorption spectroscopy, and atomic force microscopy. It was found that CNTs can improve properties of polymer/CNT composites films. Moreover, the obtained thianaphthene-2-carboxylic acid film can be further used for construction of immunosensor for detection of human IgG.