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Development and characterization of iron oxide nanoparticles coated with polymeric cover complexing

Grant number: 12/19941-7
Support type:Scholarships in Brazil - Scientific Initiation
Effective date (Start): November 01, 2012
Effective date (End): October 31, 2013
Field of knowledge:Physical Sciences and Mathematics - Chemistry
Principal Investigator:Henrique Eisi Toma
Grantee:Fernando Menegatti de Melo
Home Institution: Instituto de Química (IQ). Universidade de São Paulo (USP). São Paulo , SP, Brazil
Associated research grant:09/08584-6 - Supramolecular chemistry and nanotechnology, AP.TEM

Abstract

The project aims to explore the Undergraduate Research supramolecular approach to the expanded use of nanoparticles seeking a functional development for nanotechnology applications. In the foreground, it is intended to synthesize magnetic nanoparticles (via oxidation of iron II in an alkaline medium) with functionalized polymers containing carboxylic acid-complexing groups, such as carboxymethyl cellulose (CMC), and to study the interaction and complexation capacity of some transition metals internal to these complexing groups, present on the surface of the nanoparticles. Besides seeking to understand the process of removing these metals in aqueous solutions, the project aims to develop a methodology for regeneration of metals and nanoparticles, using strategy as their magnetic properties, which will be monitored through a simple methodology and alternative measures of susceptibility magnetic-based method of weighing outer previously described by Toma, and Ferreira Osorio. This process is suitable for commercial use of magnets miniaturized Nd2Fe14B of 11 Oe. Besides the strong emphasis on supramolecular chemistry and synthetic, the proposed work also includes the investigation of morphological and structural techniques such as by EDX, DLS, SEM, Confocal Raman and FTIR.