In-depth spectroscopic investigations of hybrid cerium oxide quantum-dots towards mitigation of the COVID-19 pandemic

• Grant number: 20/02352-5
• Support Opportunities: Scholarships abroad - Research Internship - Post-doctor
• Start date: April 04, 2022
• End date: December 03, 2022
• Field of knowledge: Interdisciplinary Subjects
• Principal Investigator: Elson Longo da Silva
• Grantee: Leandro Silva Rosa Rocha
• Supervisor: Alberto Horacio Somoza
• Host Institution: Centro de Ciências Exatas e de Tecnologia (CCET). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil
• Institution abroad: Universidad Nacional del Centro de La Provincia de Buenos Aires, Argentina
• Associated to the scholarship: 18/20590-0 - Novel renewable rare-earth based hybrid nanomaterials for environmental sensing and energy-related applications, BP.PD

Abstract

The COVID-19 pandemic has devastated the world, and the design of potentialnanomedicines based on eco-friendly nanostructured materials as complementary solutions to the vaccine's development can provide satisfactory approaches. In this way, this project focuses on the spectroscopic study of hybrid CeO2@microcrystalline cellulose quantum dots to gain comprehension on the correlation of Ce(III)/Ce(IV) redox capacity, the scavenging of reactive oxygen species, and its biocidal property. The spectroscopic studies will be performed using the Positron Annihilation Lifetime and the Electron Paramagnetic Resonance techniques enabling the qualitative and quantitative characterization of the structural defects that are intrinsically correlated to its multi-functional capability. Besides, their CO2 gas sensing behavior will likewise be evaluated as a tool to prevent the SARS-CoV-2 airborne transmission. (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)

PROCOPIO, ALLEY MICHAEL DA SILVA; ROCHA, LEANDRO SILVA ROSA; DESIMONE, PAULA MARIELA; GIULIETTI, GIULIANA; ALDAO, CELSO MANUEL; LONGO, ELSON; MOURA, FRANCISCO; PONCE, MIGUEL ADOLFO. Effect of thermal treatment on the 4f-hopping conductivity of CeO2 exposed to CO(g) atmosphere. MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS, v. 292, p. 9-pg., 2023-06-01. (13/07296-2, 18/20590-0, 20/02352-5)

AMARAL, D. C.; ROCHA, L. S. R.; GRANONE, L. I.; LAGE, M. M.; CHURIO, M. S.; SANCHEZ, M. D.; LONGO, E.; NASCIMENTO, H. M. S.; ASSIS, M.; MOURA, F.; et al. Manganese Defective Clustering: Influence on the Spectroscopic Features of Ceria-Based Nanomaterials. Inorganic Chemistry, v. 62, n. 31, p. 11-pg., 2023-07-21. (13/07296-2, 18/20590-0, 20/02352-5)