Synthesis and Characterization of Metal Oxide Nanocomposites; Application in Electrochemical Detection of Neurotramsmitter

Authors

  • S. R. Kiran Kumar   Centre for Nanosciences, Department of Chemistry, K.S. Institute of Technology, Bangalore, India.
  • K. Yogesh Kumar   Department of Chemistry, School of Engineering and Technology, Jain University, Jain global campus, Jakkasandra Post, Kanakpura Taluk, Ramanagra, India
  • H. B. Muralidhara  Centre for incubation, innovation, research & consultancy. Jyothy Institute of Technology. Bangalore, India. Department of Chemistry
  • M S Raghu  New Horizon College of Engineering, Department of Chemistry, Outer Ring Road, Bangalore, India
  • G. P. Mamatha  Centre for incubation, innovation, research & consultancy. Jyothy Institute of Technology. Bangalore, India.

Keywords:

Dopamine, Nanocomposites, Modified Carbon Paste Electrode, Cyclic voltammetry.

Abstract

ZnO-NiO nanocomposite(NC) has been synthesized by co-precipitation method. This ZnO-NiO composite has been characterized by using, x-ray diffraction (XRD), scanning electron microscope, (SEM). The synthesized composite exhibited a good sensing property and applied for the electrochemical detection of a neurotransmitter, dopamine (DA). ZnO-NiO modified carbon paste electrode (MCPE) showed good catalytic property towards the oxidation of DA. The developed nanocomposite sensor offered high catalytic activity in sensing the dopamine MCPE application in the development of biosensors. The electrochemical responses of 5×10?5 M DA and recorded voltagramm at the potential range of -0.2 to 0.6 v vs. SCE in the 0.2 M phosphate buffer of pH 7.2 by Cyclovoltametric technique for both bare carbon paste electrode (BCPE) and MCPE. A good linearity has been observed between scan rate (v) and redox peak current for ZnO-NiO composite MCPE with correlation coefficients of R = 0.97811. These results indicated that electron transfer reaction is adsorption controlled. Therefore, ZnO-NiO nanocomposite could serve as an alternative material as sensor material for the electrochemical detection of dopamine.

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IInternational Journal of Scientific Research in Computer Science, Engineering and Information Technology

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Published

2019-12-30

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Volume 4, Issue 9, November-December-2019

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Research Articles

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How to Cite

[1]
S. R. Kiran Kumar , K. Yogesh Kumar , H. B. Muralidhara, M S Raghu, G. P. Mamatha, " Synthesis and Characterization of Metal Oxide Nanocomposites; Application in Electrochemical Detection of Neurotramsmitter" International Journal of Scientific Research in Computer Science, Engineering and Information Technology(IJSRCSEIT), ISSN : 2456-3307, Volume 4, Issue 9, pp.34-39, November-December-2019.