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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

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

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Author(s):
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]
Total Authors: 6
Affiliation:
[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
Total Affiliations: 2
Document type: Journal article
Source: Electroanalysis; v. 31, n. 11 JULY 2019.
Web of Science Citations: 0
Abstract

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)

FAPESP's process: 15/19099-2 - Development of electrochemical sensors and biosensors for different analytical purposes
Grantee:Bruno Campos Janegitz
Support Opportunities: Regular Research Grants
FAPESP's process: 17/21898-6 - New conductive devices for application in electrochemical sensing and biosensing
Grantee:Bruno Campos Janegitz
Support Opportunities: Regular Research Grants