Estudo eletroquímico do processo de eletrooxidação da prometazina empregando sensor a base de pasta de nanotubos de carbono contendo DNA imobilizado em matriz inorgânica

João Paulo Marco; Keyller Bastos Borges; Cesar Ricardo Teixeira Tarley; Emerson Schwingel Ribeiro; Arnaldo César Pereira

doi:10.5433/1679-0375.2014v35n2p215

Electrochemical study of oxidation process of promethazine using sensor based on carbon nanotubes paste containing immobilized DNA on inorganic matrix

Authors

João Paulo Marco UFSJ
Keyller Bastos Borges UFSJ
Cesar Ricardo Teixeira Tarley Universidade Estadual de Londrina
Emerson Schwingel Ribeiro UFRJ
Arnaldo César Pereira UFSJ

DOI:

https://doi.org/10.5433/1679-0375.2014v35n2p215

Keywords:

Promethazine, Electrochemical behavior, Oxidation process, MWCNT/DNA/SiO2/Al2O3/Nb2O5

Abstract

In the present work the voltammetric behavior and the oxidation process of promethazine (PHZ) in electrochemical sensor based on carbon nanotubes paste containing DNA immobilized on the inorganic matrix prepared by sol-gel process (SiO2/Al2O3/Nb2O5). The method of Laviron verified that the system is irreversible and high speed of electron transfer between the electrode and DNA. The study of the oxidation of PHZ and influence of pH showed slope of 0.054 V / pH (near the nernstian system: 0.0592 V / pH) suggesting that it involves the transfer of two protons and two electrons.

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Published

2014-10-30

How to Cite

Marco, J. P., Borges, K. B., Tarley, C. R. T., Ribeiro, E. S., & Pereira, A. C. (2014). Electrochemical study of oxidation process of promethazine using sensor based on carbon nanotubes paste containing immobilized DNA on inorganic matrix. Semina: Ciências Exatas E Tecnológicas, 35(2), 215–230. https://doi.org/10.5433/1679-0375.2014v35n2p215

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Issue

Vol. 35 No. 2 (2014)

Section

Original Article

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