Busca avançada
Ano de início
Entree
(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Electrochemical Sensor Based on Casein and Carbon Black for Bisphenol A Detection

Texto completo
Autor(es):
Jodar, Leticia Vieira [1] ; Orzari, Luiz Otavio [1] ; Ortolani, Tulio Storti [1] ; Assumpcao, Monica H. M. T. [2] ; Vicentini, Fernando C. [2] ; Janegitz, Bruno C. [1]
Número total de Autores: 6
Afiliação do(s) autor(es):
[1] Univ Fed Sao Carlos, Dept Nat Sci Math & Educ, BR-13600970 Araras, SP - Brazil
[2] Univ Fed Sao Carlos, Ctr Nat Sci, Rod Lauri Simoes Barros Km 12, Buri, SP - Brazil
Número total de Afiliações: 2
Tipo de documento: Artigo Científico
Fonte: Electroanalysis; v. 31, n. 11 JULY 2019.
Citações Web of Science: 0
Resumo

Bisphenol A (BPA) is an environmental endocrine disrupting chemical, which can lead to various adverse health effects. Aiming to develop effective tools for the detection of BPA, this work reports a low cost and stable film based on casein (CAS) and Carbon Black (CB). The proposed material (CAS-CB) showed structures of CAS surrounded by CB agglomerates observed by Scanning Electron Microscopy while Fourier Transform Infrared Spectroscopy analysis illustrated characteristic bands of casein. Cyclic Voltammetry (CV) and linear sweep voltammetry (LSV) were used to investigate the electrochemical behavior of BPA using the CAS-CB. Under optimal conditions, LSV detection presented a limit of detection of 0.25 mu mol L-1 in a linear range from 0.49 to 24 mu mol L-1. Additionally, the working electrode (GC) modified by the proposed film (CAS-CB) was applied for BPA sensing in environmental and milk samples. The results showed recoveries between 95.4 to 114 % attesting the efficiency of this new material, which has simplicity in the preparation, high conductivity, and adsorption capability. (AU)

Processo FAPESP: 15/19099-2 - Desenvolvimento de sensores e biossensores eletroquímicos para diversos fins analíticos
Beneficiário:Bruno Campos Janegitz
Linha de fomento: Auxílio à Pesquisa - Regular
Processo FAPESP: 17/21898-6 - Novos dispositivos condutores para aplicação em sensores e biossensores eletroquímicos
Beneficiário:Bruno Campos Janegitz
Linha de fomento: Auxílio à Pesquisa - Regular