| Grant number: | 15/25103-2 |
| Support Opportunities: | Regular Research Grants |
| Start date: | April 01, 2016 |
| End date: | March 31, 2018 |
| Field of knowledge: | Physical Sciences and Mathematics - Chemistry - Physical-Chemistry |
| Principal Investigator: | Denise Freitas Siqueira Petri |
| Grantee: | Denise Freitas Siqueira Petri |
| Host Institution: | Instituto de Química (IQ). Universidade de São Paulo (USP). São Paulo , SP, Brazil |
| City of the host institution: | São Paulo |
Abstract
The project aims at understanding the effects of incorporation of magnetic nanoparticles into polymer matrices, in the absence and presence of external magnetic field (CME), on biotechnological processes, such as proliferation and differentiation of neural cells, adsorption and desorption of biomolecules and enzymatic activity of hydrolases. Composites of polysaccharides and magnetic nanoparticles are synthesized in the form of membranes, hydrogels, aerogels and microspheres, and characterized by scanning electron microscopy, thermogravimetric analysis, infrared vibrational spectroscopy and magnetic properties measured. For proliferation and differentiation of neuronal cells on supports made of polysaccharide and magnetic nanoparticles static and pulsed magnetic stimuli will be applied, with the possibility to in situ monitoring cell morphology and Ca2+ ions influx with the help of fluorescence microscope. The comprehension of the adsorption and desorption of levodopa carbidopa and dopamine from composite materials, in the absence and presence of CME, shall be useful to the development of transdermal "patches" for the treatment of neurodegenerative diseases, as well as the differentiation of stem cells into neuronal dopaminergic neurons. Adsorption and desorption of ethinyl estradiol from composite materials will be stimulated by CME. The effect of magnetic stimuli by CME in the enzymatic activity of lipase and cellulase, both hydrolases, will be systematically investigated. (AU)
| Articles published in Agência FAPESP Newsletter about the research grant: |
| More itemsLess items |
| TITULO |
| Articles published in other media outlets ( ): |
| More itemsLess items |
| VEICULO: TITULO (DATA) |
| VEICULO: TITULO (DATA) |