Yttria-modified titania-CNTs composite as an electrochemical biosensor for lysine. | Journal of Chemical Society of Pakistan 2013

Author(s)

Syed Tajammul Hussain Nano Science and Catalysis Division, National Centre for Physics, Quaid-i-Azam University, Islamabad, Pakistan

Syed Mustansar Abbas Nano Science and Catalysis Division, National Centre for Physics, Quaid-i-Azam University, Islamabad, Pakistan

Nisar Ahmad Nano Science and Catalysis Division, National Centre for Physics, Quaid-i-Azam University, Islamabad, Pakistan

Massod Ahmad Khan Bangash Kohat University of Science and Technology, Kohat, Pakistan

Muneeb-Ur-Rehman Kohat University of Science and Technology, Kohat, Pakistan

Abstract

A composite of carbon nanotubes with yttrium modified titania particles (Y/TiO2-CNT) is synthesized and characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray (EDX) and Fourier transform infrared spectroscopy (FTIR). The electrochemical behavior of amino group (Lysine) is investigated by cyclic voltammetery (CV). The response mechanism of the synthesized biosensor is proposed to be the combination of electrostatic and electrical interactions of CNTs with amino group. Excellent sensitivity, repeatability, stability, selectivity and recovery for the potentiometric determination of Lysine in the range of 5mM to 25mM concentrations are obtained.

Publication Details

Page(s) 605-611

DOI DOI not available

Published Journal: Journal of Chemical Society of Pakistan, Volume: 35, Issue: 3, Year: 2013

Keywords

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