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Development of disposable electrochemical sensors and photoanodes manufactured with nanostructured semiconductor materials for the determination and degradation of endocrine disruptors

Grant number: 22/05454-9
Support Opportunities:Regular Research Grants
Duration: September 01, 2022 - August 31, 2024
Field of knowledge:Physical Sciences and Mathematics - Chemistry - Analytical Chemistry
Principal Investigator:Fernando Cruz de Moraes
Grantee:Fernando Cruz de Moraes
Host Institution: Centro de Ciências Exatas e de Tecnologia (CCET). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil
Associated researchers: Anderson Martin dos Santos


In this project, we propose the development of disposable electrochemical sensors and photoanodes manufactured with nanostructured semiconductor materials. In which, the first will be used for the determination and the second for the degradation of endocrine disruptors. For the development of electrochemical sensors, different carbon nanostructures will be used, such as carbon black, graphene and/or biochar as a recognition phase in the development of new arrays of electrochemical sensors. For this purpose, printed electrodes manufactured with carbonaceous nanostructures modified with metallic nanoparticles and/or quantum dots will be developed. On the other hand, the development of nanostructured semiconductor materials for application in the degradation of endocrine disruptors via photoelectrochemical system is proposed. Semiconductor material such as hematite (± - Fe2O3) will be studied in the manufacture of photoanodes, which will be used to form heterostructures based on the theory of Scheme Z (Type II), whose principle is to obtain synergistic effects of two combined semiconductors that facilitate the transfer of charge, decreasing electron pair recombination and increasing the useful time of the species of interest in the oxidation of molecules. In this perspective, the materials that will be used to design such heterojunctions will be those that contain halogens in their composition (BiOI and BiOBr), as they are known as excellent catalytic materials in optoelectronics studies. (AU)

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Scientific publications (5)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
WONG, ADEMAR; SANTOS, ANDERSON M. M.; FEITOSA, MARIA H. A.; FATIBELLO-FILHO, ORLANDO; MORAES, FERNANDO C. C.; SOTOMAYOR, MARIA D. P. T.. Simultaneous Determination of Uric Acid and Caffeine by Flow Injection Using Multiple-Pulse Amperometry. BIOSENSORS-BASEL, v. 13, n. 7, p. 12-pg., . (22/05454-9, 17/10118-0, 14/50945-4)
WONG, ADEMAR; SANTOS, ANDERSON M.; PROENCA, CAMILA A.; BALDO, THAISA A.; FEITOSA, MARIA H. A.; MORAES, FERNANDO C.; SOTOMAYOR, MARIA D. P. T.. Voltammetric Determination of 3-Methylmorphine Using Glassy Carbon Electrode Modified with rGO and Bismuth Film. BIOSENSORS-BASEL, v. 12, n. 10, p. 14-pg., . (22/05454-9, 17/10118-0, 14/50945-4)
BERNARDO, WAGNER LUIS DE CARVALHO; BORIOLLO, MARCELO FABIANO GOMES; TONON, CAROLINE CORADI; DA SILVA, JEFERSON JUNIOR; OLIVEIRA, MATEUS CARDOSO; DE MORAES, FERNANDO CRUZ; SPOLIDORIO, DENISE MADALENA PALOMARI. Biosynthesis of silver nanoparticles from Syzygium cumini leaves and their potential effects on odontogenic pathogens and biofilms. FRONTIERS IN MICROBIOLOGY, v. 13, p. 22-pg., . (22/05454-9)
SILVA, REBECA M. S.; SANTOS, ANDERSON M.; WONG, ADEMAR; FATIBELLO-FILHO, ORLANDO; MORAES, FERNANDO C.; FARIAS, MARCO A. S.. Determination of ofloxacin in the presence of dopamine, paracetamol, and caffeine using a glassy carbon electrode based on carbon nanomaterials and gold nanoparticles. ANALYTICAL METHODS, v. 14, n. 39, p. 8-pg., . (17/10118-0, 20/01050-5, 22/05454-9)
SANTOS, ANDERSON M.; WONG, ADEMAR; FATIBELLO-FILHO, ORLANDO; MORAES, FERNANDO C.. Amperometric Biosensor Based on Laccase Enzyme, Gold Nanoparticles, and Glutaraldehyde for the Determination of Dopamine in Biological and Environmental Samples. C-JOURNAL OF CARBON RESEARCH, v. 8, n. 3, p. 13-pg., . (17/10118-0, 20/01050-5, 22/05454-9)

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