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

Grant number: 19/14771-5
Support type:Scholarships in Brazil - Doctorate (Direct)
Effective date (Start): August 01, 2019
Effective date (End): July 31, 2023
Field of knowledge:Physical Sciences and Mathematics - Chemistry
Principal Investigator:Henrique Eisi Toma
Grantee:João Victor Mattioni
Home 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


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)