Authors: Bui Dai Nhan; Mai Anh Tuan
Addresses: International Training Institute for Material Science, Hanoi University of Science and Technology, No. 1, Dai Co Viet Road, Hanoi, Vietnam ' International Training Institute for Material Science, Hanoi University of Science and Technology, No. 1, Dai Co Viet Road, Hanoi, Vietnam
Abstract: Polypyrrole nanowires were electrochemically synthesised on platinum electrode at ambient temperature. The potentiostatic potential was set at 0.75 V in the presence of gelatin as soft mould. The whole process only took few hundred seconds. The morphologies, chemical composition and conductivity of nanowires were evaluated by means of Scanning Electron Microscopy (SEM), Fourier Transform Infrared Spectroscopy (FT-IR) and cyclic voltammetry (CV). The obtained nano-wire is around 50 nm in diameter with large surface, good conductivity. By surface enhanced Raman spectroscopy, the amine groups of polypyrrole were thought to be orientated upwards into the analyte which may facilitate the direct binding with DNA in DNA sensor.
Keywords: polypyrrole nanowires; gelatine; cyclic voltammetry; biosensors; nanotechnology; platinum electrodes; DNA binding; DNA sensors.
International Journal of Nanotechnology, 2013 Vol.10 No.3/4, pp.154 - 165
Available online: 05 Apr 2013 *Full-text access for editors Access for subscribers Purchase this article Comment on this article