Nanostructured materials for the development of sensors platform by (spectro)electrochemistry for the detection of environmental samples.

• Grant number: 23/14967-2
• Support Opportunities: Regular Research Grants
• Start date: February 01, 2024
• End date: January 31, 2026
• Field of knowledge: Engineering - Materials and Metallurgical Engineering - Nonmetallic Materials
• Principal Investigator: Cibely da Silva Martin Sonvesso
• Grantee: Cibely da Silva Martin Sonvesso
• Host Institution: Faculdade de Engenharia (FEIS). Universidade Estadual Paulista (UNESP). Campus de Ilha Solteira. Ilha Solteira , SP, Brazil
• Associated researchers: Christopher Michael Ashton Brett ; Priscila Alessio Constantino ; Renato Grillo

Abstract

Thin films can acquire different supramolecular arrangements on solid substrates through various deposition techniques. Changing the deposition parameters of these techniques allows for modeling the electrical properties of these films. Therefore, the study of obtaining thin films through different deposition techniques stands out due to the potential to create materials and shape these films' electrical and conductivity properties, increasing sensitivity when used as sensors. In this research project, we propose obtaining thin films through layer-by-layer and electrodeposition techniques, not only for application as electrochemical and spectroscopic sensors but also as spectroelectrochemical sensors. The main distinctive feature of this research project is related to the development of new nanostructured materials as sensory platforms for electrochemical and spectroscopic measurements and the combination of these techniques.In this context, the coupling of electrochemical techniques and Raman spectroscopy has sparked significant interest in the sensor development field, due to the practicality of electrochemical techniques and the selectivity and specificity of Raman spectroscopy. The new materials developed will be based on molecules from phenothiazines, phthalocyanines, and Schiff Bases. Additionally, the incorporation of metallic nanoparticles will enhance electrochemical sensitivity and enable the acquisition of Surface-Enhanced Raman Spectroscopy (SERS) signals. (AU)

Scientific publications

(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)

VILCHES, JOSE LUIZ; MARTIN, CIBELY DA SILVA; SANCHES, ALEX OTAVIO; MALMONGE, JOSE ANTONIO. Tannic acid crosslinking in Tilapia gelatin microfibers produced by Solution Blow Spinning. Journal of Food Engineering, v. 397, p. 10-pg., 2025-03-22. (23/14967-2)

DE OLIVEIRA, TATIANA AP.; MARTIN, CIBELY S.; RUBIRA, RAFAEL J. G.; DE BARROS, ANERISE; MAZALI, ITALO O.; ZIDOI, LUIZ P.; BATAGIN-NETO, AUGUSTO; CONSTANTINO, CARLOS J. L.. Gold Nanorod Surface-Enhanced Raman Spectroscopy Substrate for l-DOPA Detection: Experimental and Theoretical Approaches. Applied Spectroscopy, v. N/A, p. 11-pg., 2025-02-02. (22/04020-5, 18/22214-6, 23/14967-2, 20/05423-0)

KAVAZOI, HENRY S.; MIYAZAKI, CELINA M.; CONSTANTINO, CARLOS J. L.; MARTIN, CIBELY S.; ALESSIO, PRISCILA. Selective Detection of Paraquat in Adulterated and Complex Environmental Samples Using Raman Spectroelectrochemistry. Applied Spectroscopy, v. 78, n. 9, p. 10-pg., 2024-08-01. (23/14967-2, 21/01161-4, 21/14235-6, 20/11803-0, 23/04196-9, 14/50869-6, 18/22214-6)