Development of superparamagnetic nanoparticles functionalized with complexing agents for the capture and exploitation of strategic metals

• Grant number: 19/14771-5
• Support Opportunities: Scholarships in Brazil - Doctorate (Direct)
• Effective date (Start): August 01, 2019
• Effective date (End): April 30, 2024
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Inorganic Chemistry
• Principal Investigator: Henrique Eisi Toma
• Grantee: João Victor Mattioni
• Host Institution: Instituto de Química (IQ). Universidade de São Paulo (USP). São Paulo , SP, Brazil
• Associated research grant: 18/21489-1 - Supramolecular nanotechnology: design, materials and devices, AP.TEM
• Associated scholarship(s): 21/12422-3 - Janus Superparticles: from the basis to the strategic metals capture, BE.EP.DD

Abstract

The project aims to the planned development of Janus nanoparticles of multifunctional heterodimers from routes that provide good synthetic control and high reproducibility of results. The term Janus alludes to the God of Roman Mythology who possessed two opposing and distinct faces, just as it is the interest of these materials: to possess two or more functionalities in the same composite. The nanoparticles will be based on gold, silica and iron oxide, materials that provide a range of unique functions, such as cell imaging, response to applied magnetic field, easy surface modification, among others. In this way, the construction of nanoparticles with high complexing power and high density of exposed functional groups is a powerful tool to capture noble metals such as gold and palladium. (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)

MATTIONI, JOAO VICTOR; FRANCISCATO, DOUGLAS SANTANA; SIHN, LUCA MICHAEL; TOMA, HENRIQUE EISI. Analytical determination of gold ions based on ranelate induced nanoparticle formation. ANALYTICAL METHODS, v. 14, n. 17, p. 7-pg., 2022-03-25. (18/21489-1, 19/14771-5, 19/19218-2, 18/25974-1)

MATTIONI, JOAO V.; FRANCISCATO, DOUGLAS S.; MELO, FERNANDO M.; SIHN, LUCA M.; BRANDAO, BRUNO B. N. S.; CONDOMITTI, ULISSES; NAKAMURA, MARCELO; TOMA, HENRIQUE E.. Nanohydrometallurgical extraction of gold based on ranelate induced nanoparticles formation. HYDROMETALLURGY, v. 213, p. 10-pg., 2022-07-06. (19/14771-5, 18/21489-1)

DE MELO, FERNANDO MENEGATTI; MATTIONI, V, JOAO; DIAS, FERNANDO; FU, YING; TOMA, HENRIQUE E.. Solvophobic-controlled synthesis of smart magneto-fluorescent nanostructures for real-time inspection of metallic fractures. NANOSCALE ADVANCES, v. 3, n. 12, p. 3593-3604, JUN 21 2021. (19/14771-5, 18/21489-1)