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New route for synthesis of conjugates peptide-chitosan: the effects of the peptide's hydrophobicity evaluated on model membranes interaction via zeta potential

Grant number: 15/07548-7
Support Opportunities:Scholarships in Brazil - Scientific Initiation
Effective date (Start): June 01, 2015
Effective date (End): December 31, 2017
Field of knowledge:Physical Sciences and Mathematics - Chemistry - Organic Chemistry
Principal Investigator:Marcia Perez dos Santos Cabrera
Grantee:Thais Helena Costa Petrin
Host Institution: Instituto de Biociências, Letras e Ciências Exatas (IBILCE). Universidade Estadual Paulista (UNESP). Campus de São José do Rio Preto. São José do Rio Preto , SP, Brazil
Associated research grant:12/24259-0 - Peptide and chitosan conjugates with pharmacological potential: synthesis, prospecting of activity in membrane mimetic systems, and evaluation in cells, AP.JP

Abstract

Starting with commercial chitosans modified to increase the solubility at physiological pH and reduce the molar mass, a conjugate with a loaded and small chain peptide will be obtained. The combination of route is performed via glutathione- chitosan compound and conjugating the peptide via the N-terminal. Additionally another peptide chain and greater hydrophobicity will be used in the conjugation. The products will be characterized by NMR, fluorescence, FTIR , and its interaction with model membranes evaluated in zeta potential experiments.

News published in Agência FAPESP Newsletter about the scholarship:
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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)
COSTA PETRIN, THAIS H.; FADEL, VALMIR; MARTINS, DANUBIA B.; DIAS, SUSANA A.; CRUZ, ANA; SERGIO, LUCIANA MARCIANO; ARCISIO-MIRANDA, MANOEL; CASTANHO, MIGUEL A. R. B.; DOS SANTOS CABRERA, MARCIA P.. Synthesis and Characterization of Peptide-Chitosan Conjugates (PepChis) with Lipid Bilayer Affinity and Antibacterial Activity. Biomacromolecules, v. 20, n. 7, p. 2743-2753, . (14/08372-7, 16/13368-4, 15/07548-7, 12/02065-0, 12/24259-0)

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