Journal
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
Volume 146, Issue -, Pages 1133-1141Publisher
ELSEVIER
DOI: 10.1016/j.ijbiomac.2019.10.053
Keywords
Sterculia striata polysaccharide; Nanocapsules; Antifungal; Drug delivery
Funding
- CNPq (Brazil)
- Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior (CAPES, Brazil)
- INOMAT/INCT (Brazil)
- FUNCAP (Brazil)
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This work was aimed at the production and characterization of a new nanocarrier based on a Sterculia striate polysaccharide (SSP) modified via acylation reaction with propionic anhydride. Nanocapsules of propionated SSP (PSSP) were produced via spontaneous nanoemulsification process and tested as a potential amphotericin B (AMB) nanocarrier. Stable nanoparticles with a very low polydispersity index (0.08-0.29) and high zeta potential (zeta -42.7 to -53.8 mV) were obtained. Particle size was dependent on the degree of substitution and ranged from 205 to 286 nm. A nanocapsule with a degree of substitution (DS) of 2.53 (NCp 2.53) was selected for encapsulation, biocompatibility, and antifungal evaluation against Candida albicans strains. A maximum of 98.3% AMB encapsulation was achieved. Encapsulated AMB was in its monomeric form and showed good biocompatibility and antifungal activity against four C. albicans strains. Data indicate that PSSP has potential as a nanocarrier system for AMB. (C) 2019 Elsevier B.V. All rights reserved.
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