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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.)

Reduced graphene oxide-Sb2O5 hybrid nanomaterial for the design of a laccase-based amperometric biosensor for estriol

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Author(s):
Cincotto, Fernando H. [1, 2] ; Canevari, Thiago C. [3] ; Machado, Sergio A. S. [1] ; Sanchez, Alfredo [2] ; Ruiz Barrio, Maria Asuncion [2] ; Villalonga, Reynaldo [2] ; Pingarron, Jose M. [2]
Total Authors: 7
Affiliation:
[1] State Univ Sao Paulo, Inst Chem, BR-13560970 Sao Carlos, SP - Brazil
[2] Univ Complutense Madrid, Fac Chem, Dept Analyt Chem, E-28040 Madrid - Spain
[3] Mackenzie Presbiterian Univ, Sch Engn, BR-01302907 Sao Paulo, SP - Brazil
Total Affiliations: 3
Document type: Journal article
Source: Electrochimica Acta; v. 174, p. 332-339, AUG 20 2015.
Web of Science Citations: 22
Abstract

A novel reduced graphene oxide/Sb2O5 hybrid nanomaterial was prepared by a one-pot reaction process. The nanomaterial was characterized by different spectroscopic, microscopic and electrochemical techniques, demonstrating that the graphene sheets were doped with a Sb2O5 thin film. A glassy carbon electrode coated with the hybrid material was further employed as support for the covalent immobilization of laccase to develop an electrochemical biosensor for estriol. The enzyme biosensor showed high sensitivity (275 mA/M) and fast analytical response (4 s) for the hormone, with a limit of detection of 11 nM in the range of 25 nM to 1.03 p,M. The biosensor showed high selectivity for the analytical detection of estriol. (C) 2015 Elsevier Ltd. All rights reserved. (AU)

FAPESP's process: 14/02457-0 - Preparation of advanced hybrid nanomaterials based on functionalized polypyrrole/graphene/Sb nanoparticles for the laccase-mediated bioelectrochemical detection of endocrine disrupting compounds
Grantee:Fernando Henrique Cincotto
Support Opportunities: Scholarships abroad - Research Internship - Doctorate
FAPESP's process: 11/23047-7 - Development of an electrochemical biosensor based on mesoporous silicon containing carbon nanotubes obtained by a sol-gel process. Electrochemical determination of pesticides.
Grantee:Thiago da Cruz Canevari
Support Opportunities: Scholarships in Brazil - Post-Doctoral