Development of natural polymeric microcapsules for antimicrobial drug delivery
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2020
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Drug Development and Industrial Pharmacy
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The goal of this work was the development of natural polymeric microcapsules for antimicrobial drug delivery – triclosan loaded alginate and chitosan-based microcapsules for potential coating applications in substrates such as textiles or plastics. Microcapsules containing 2.5% (w/w) or 3% (w/w) triclosan in both core and matrix were synthesized and evaluated by Fourier-transform infrared spectroscopy, scanning electron microscopy, confocal microscopy, differential scanning calorimetry, thermogravimetry, and antimicrobial activity. The microcapsules produced featured spherical and mostly irregularly-shaped surfaces composed by an alginate core in a chitosan outer matrix, as revealed by confocal microscopy, and antimicrobial activity against S. aureus and E. coli with inhibition halos up to 60 mm and 25 mm respectively, granted by a triclosan loading of 61.66%. The thermal analysis suggested that the polymers protected the active substance from temperature-induced degradation. In conclusion, these microcapsules may be applied toward antimicrobial functionalization of plastics, textiles and other materials.
Como referenciar
LIMA, CAROLINE S.A. de; VARCA, GUSTAVO H.C.; COSTA, SIRLENE M. da; FERRAZ, HUMBERTO G.; SANTOS, ANA C. da S.; LOPES, PATRICIA S.; COSTA, SILGIA A. da. Development of natural polymeric microcapsules for antimicrobial drug delivery: triclosan loaded chitosan and alginate-based microcapsules. Drug Development and Industrial Pharmacy, v. 46, n. 9, p. 1477-1486, 2020. DOI: 10.1080/03639045.2020.1809445. Disponível em: http://repositorio.ipen.br/handle/123456789/31916. Acesso em: 24 Apr 2024.
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