Zirconia (ZrO2) grafted multiwalled carbon nanotubes (CNTs) (crystallite size of ZrO2 ∼ 28.63 nm), obtained via isothermal hydrolysis of zirconium oxychloride in presence of CNT, have been electrophoretically deposited onto indium-tin-oxide (ITO) coated glass plate. High resolution electron microscopic investigations reveal assemblage of the ZrO2 nanostructure inside and around CNT cavities. Electrochemical impedance spectroscopic studies indicate ∼3.5 fold enhancement in charge transfer behaviour of NanoZrO2-CNT/ITO electrode compared to that of NanoZrO2/ITO electrode. Considering the synergy between biocompatible ZrO2 and electrochemically superior CNT, this nanobiocomposite has been explored to develop an impedimetric nucleic acid biosensor for M. Tuberculosis detection.
Zirconia grafted carbon nanotubes based biosensor for M. Tuberculosis detection
Maumita Das, Chetna Dhand, G. Sumana, A. K. Srivastava, N. Vijayan, R. Nagarajan, B. D. Malhotra; Zirconia grafted carbon nanotubes based biosensor for M. Tuberculosis detection. Appl. Phys. Lett. 3 October 2011; 99 (14): 143702. https://doi.org/10.1063/1.3645618
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