Nanocomposites foams of polypropilene modified by ionizing radiation containing CaCo3/ag° nanoparticles of bio-calcium carbonate-study of bactericidal effect
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2019
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Journal of Bioremediation & Biodegradation
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This paper presents a study of high melting strengh polypropylene (HMSPP) foams by gamma irradiation with
insertion of silver nanoparticles (AgNPs) adsorbed in carrier of CaCO3 (natural source) aiming bactericidal
effect. The use of silver (Ag°) gives important antibacterial property since silver is highly toxic against bacterae. The
HMSPP matrix was processed in a twin screw extruder under CO2 atmosphere and polypropylene nanocomposites
(HMSPP-AgNC) were obtained in different concentrations of silver. The material was characterized by scanning
electron microscopy (SEM), energy dispersive spectroscopy (EDS), field emission scanning electron microscopy
(FESEM), X-ray diffraction spectroscopy (XRD), cytotoxicity assay and reduction colony-forming-unit (CFU).
The analyzed foams showed spherical clusters and homogeneous regions with good distribution of the silver
nanoparticles. Furthermore, the HMSPP@AgNCs foams exhibited a antibacterial efficiency against E. coli and S.
aureus due to the presence of the biocidal silver nanoparticles.
Como referenciar
PARRA, DUCLERC F.; SILVA, ORELIO L. da; KOMATSU, LUIZ G.; CARDOSO, ELIZABETH C.L.; LUGAO, ADEMAR B. Nanocomposites foams of polypropilene modified by ionizing radiation containing CaCo3/ag° nanoparticles of bio-calcium carbonate-study of bactericidal effect. Journal of Bioremediation & Biodegradation, v. 10, p. 41-41, 2019. Disponível em: http://repositorio.ipen.br/handle/123456789/32198. Acesso em: 25 Apr 2024.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.