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Imen Hafaiedh
Imen Hafaiedh
Nanotechnology Laboratory, National Institute of Applied Science and Technology centre,
Urbain Nord, Bp676, 1080 Charguia Cedex
Tunisia
Publications
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Research Article
Impedance Spectroscopy of Supported Multiwalled Carbon Nanotubes for Immunosensor Applications
Author(s): Imen Hafaiedh, Sami Ameur and Adnane Abdelghani Imen Hafaiedh, Sami Ameur and Adnane Abdelghani
In this work, we used carboxyl multiwall carbons nanotubes for immunosensor application. The carbon nanotubes functionalisation can be achieved with Pressure Vapor Deposition (PVD) technique. The obtained carbon nanotubes can be immobilized on gold electrode with the airbrushing technique. The morphology of the deposited carboxyl carbon nanotubes was observed with Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM). The electrochemical characterization of the carboxyl multiwall carbon nanotubes was achieved with cyclic voltammetry and impedance spectroscopy. It shows a higher resistance and a good stability in water interface. For anti-rabbit IgG immobilization, the carboxyl carbon nanotubes were activated with EDC/NHS and non-specific sites was blocked with Bovine Serum Albumin (BSA). The development of immu.. View More»
DOI: 10.4172/2157-7439.1000275