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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.)

Novel electrochemical sensor based on nanodiamonds and manioc starch for detection of diquat in environmental samples

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Zambianco, Naiara Alana [1] ; Silva, Tiago Almeida [2, 3] ; Zanin, Hudson [4] ; Fatibello-Filho, Orlando [2] ; Janegitz, Bruno Campos [1]
Total Authors: 5
[1] Univ Fed Sao Carlos, Dept Nat Sci Math & Educ, BR-13600970 Araras, SP - Brazil
[2] Univ Fed Sao Carlos, Dept Chem, BR-13560970 Sao Carlos, SP - Brazil
[3] Fed Ctr Technol Educ Minas Gerais, Dept Met & Chem, BR-35180008 Timoteo, MG - Brazil
[4] Univ Estadual Campinas, Carbon Sci Tech Labs, Sch Elect & Comp Engn, Adv Energy Storage Div, Ctr Innovat New Energies, Av Albert Einstein 400, BR-13083852 Campinas, SP - Brazil
Total Affiliations: 4
Document type: Journal article
Web of Science Citations: 0

Carbon nanomaterials thin films have been attracted considerable attention in the last years due to relative low cost and excellent electrical conductivity features. We report here on novel sensor architecture consisted of a glassy carbon surface modified with manioc starch and nanodiamonds nanoparticles. Structural and morphological properties of this thin film were investigated by Fourier-transform infrared spectroscopy, X-ray diffraction, scanning and transmission electron microscopies. By using square-wave voltammetry as electroanalytical tool, the widely used herbicide diquat (DQ) was determined in environmental samples. The modified electrode presented a linear response to DQ in the concentration range of 5.0 x 10(-7) to 4.6 x 10(-5) mol L-1 with a limit of detection of 1.1 x 10(-7) mol L-1. This novel sensor proved to be efficient to determine if DQ is present in rivers and drinking water samples. (AU)

FAPESP's process: 17/21898-6 - New conductive devices for application in electrochemical sensing and biosensing
Grantee:Bruno Campos Janegitz
Support type: Regular Research Grants
FAPESP's process: 17/11958-1 - CINE - Advanced Energy Storage Division
Grantee:Rubens Maciel Filho
Support type: Research Grants - Research Centers in Engineering Program
FAPESP's process: 17/21097-3 - Bee-agriculture interactions: perspectives to sustainable use
Grantee:Osmar Malaspina
Support type: BIOTA-FAPESP Program - Thematic Grants
FAPESP's process: 14/02163-7 - Development of supercapacitors devices from graphene, carbon nanotubes and diamonds
Grantee:Hudson Giovani Zanin
Support type: Research Grants - Young Investigators Grants