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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.)

Tapioca Biofilm Containing Nitrogen-doped Titanium Dioxide Nanoparticles for Electrochemical Detection of 17-beta Estradiol

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Author(s):
Mauruto de Oliveira, Gabriela C. [1] ; de Palma, Elisangela P. [2] ; Kunita, Marcos H. [2] ; Medeiros, Roberta Antigo [3] ; de Matos, Roberto [3] ; Francisco, Kelly Roberta [1] ; Janegitz, Bruno C. [1]
Total Authors: 7
Affiliation:
[1] Univ Fed Sao Carlos, Dept Ciencias Nat Matemat & Educ, BR-13600970 Araras, SP - Brazil
[2] Univ Estadual Maringa, Dept Quim, BR-87020900 Maringa, PR - Brazil
[3] Univ Estadual Londrina, Dept Quim, BR-86057970 Londrina, PR - Brazil
Total Affiliations: 3
Document type: Journal article
Source: Electroanalysis; v. 29, n. 11, p. 2638-2645, NOV 2017.
Web of Science Citations: 7
Abstract

A novel sensor architecture based on thin film of tapioca decorated within nitrogen-doped titanium dioxide (N-TiO2) nanoparticles is reported. The nano-structures were characterized by scanning electron microscope, transmission electron microscope, X-rays diffraction and voltammetric techniques. The proposed electrode was used for detection of low concentrations of 17-beta estradiol in without purification step, which was investigated by using linear sweep adsorptive stripping voltammetry. Under optimal conditions, the analytical curve was linear over a 17 beta-estradiol concentration range of 9.9x10(-6) to 1.4x10(-5) molL(-1), with a detection limit of 1.7x10(-7) molL(-1). The tapioca and N-TiO2 nanoparticles homogeneous film was applied for detection of 17-beta-estradiol in tap water and synthetic urine samples, which presented satisfactory results. (AU)

FAPESP's process: 16/04743-6 - Electrode carbon vitreous modified with titanium dioxide nanotubes and tapioca film for detection of hormone estradiol
Grantee:Gabriela Carolina Mauruto de Oliveira
Support Opportunities: Scholarships in Brazil - Scientific Initiation
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