| Grant number: | 17/05029-8 |
| Support Opportunities: | Scholarships in Brazil - Doctorate |
| Start date: | June 01, 2017 |
| End date: | December 31, 2020 |
| Field of knowledge: | Physical Sciences and Mathematics - Chemistry - Physical-Chemistry |
| Agreement: | Coordination of Improvement of Higher Education Personnel (CAPES) |
| Principal Investigator: | Amedea Barozzi Seabra |
| Grantee: | Milena Trevisan Pelegrino |
| Host Institution: | Centro de Ciências Naturais e Humanas (CCNH). Universidade Federal do ABC (UFABC). Santo André , SP, Brazil |
Abstract S-nitrosothiols (RSNOs) are an important class of nitric oxide (NO) donors, involved in several biological processes, such as: (i) control of blood vasodilatation, (ii) antioxidant, antitumoral and antimicrobial activities, (iii) promotion and acceleration of wound healing (iv) regeneration of skin, cartilage, mucosa and globe eye tissues. RSNOs act as NO storage in vivo preserving NO physiological activities. Recently, the combination of RSNOs and biomaterials represents a promising strategy to increase the therapeutical efficacy of RSNOs. In this context, the main purpose of this project is the preparation of RSNOs and their incorporation into nanoparticles and biocompatible hydrogels. RSNOs will be incorporated in chitosan nanoparticles, coated with hyaluronic acid, for targeting the NO-releasing nanoparticles to tumour tissues. Chitosan is a biocompatible and biodegradable biopolymer, employed in the synthesis of nanoparticles for controllable and sustainable drug release. The biopolymer hyaluronic acid has been used for coating nanoparticles to tumour targeting purposes. In addition, the project involves the incorporation of either free RSNOs or encapsulated RSNOs into thermosensitive hydrogels composed by Pluronic F-127/chitosan and chitosan based visible light crosslinkable hydrogels for biomedical applications, including skin regeneration. The project involves the preparation and characterization of NO releasing nanoparticles and hydrogels, the evaluation of the NO release profile from the biomaterials, and biological assays to evaluate and investigate the therapeutic actions of the prepared biomaterials. These new materials are expected to have great potential in biomedical applications. (AU) | |
| News published in Agência FAPESP Newsletter about the scholarship: | |
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Filed patent(s) as a result of this research project
NANOPARTÍCULAS DE QUITOSANA CONTENDO ÁCIDO S-NITROSO-MERCAPTOSUCCÍNICO (S-NITROSO-MSA) PARA TRATAMENTO DE LEISHMANIOSE CUTÂNEA BR 10 2018 000232 5 - Fundação Universidade Federal do ABC (UFABC) . Amedea Barozzi Seabra; Martha Simões Ribeiro; Ronei Miotto; Fernanda Viana Cabral; Milena Trevisan Pelegrino - January 2018, 01