Banca de QUALIFICAÇÃO: ANDERSON DIAS VIANA

Uma banca de QUALIFICAÇÃO de DOUTORADO foi cadastrada pelo programa.
DISCENTE : ANDERSON DIAS VIANA
DATA : 19/06/2019
HORA: 09:00
LOCAL: auditório do Química III
TÍTULO:

ANTIBACTERIAL APPLICATION OF SILVER NANOPARTICLES STABILIZED BY RICINOLEIC ACID AND ITS EPOXIED FORM

PALAVRAS-CHAVES:

Silver nanoparticles; Ricinoleic acid; Bactericidal effect; Biospectroscopy

PÁGINAS: 60
GRANDE ÁREA: Ciências Exatas e da Terra
ÁREA: Química
SUBÁREA: Físico-Química
ESPECIALIDADE: Eletroquímica
RESUMO:

Antibiotic-resistant bacteria are one of the major health challenges. There is a need for the development of new strategies to restrain this dissemination. Silver nanoparticles have been used because its bactericidal effect and its ability in enhance antibiotics effect when used as conjugated. In this work, the synthesis of silver nanoparticles with the ricinoleic acid (AgRA) and its epoxied form (AgERA) were optimized to be applied as bactericidal agents accompanied by Fourier transform infrared spectroscopy. Indicating formation of nanoparticles UV-Vis maxima absorbances of 420 nm were obtained for AgRA and 405 nm for AgERA. The concentration of 0.5 mmol∙L^-1 of Ag⁺ and 20 mmol∙L^-1 of the surfactant in the synthesis of AgRA and 0.3 mmol∙L^-1 of Ag⁺ and 20 mmol∙L^-1 of the surfactant in the AgERA synthesis. There is a reduction of the 10-day synthesis time of AgRA to 6 h in AgERA. In MET images, the mean nanoparticle size were 16.70 nm for AgRA and 17.80 nm for AgERA.

MEMBROS DA BANCA:
Externo ao Programa - 1639820 - ARNOBIO ANTONIO DA SILVA JUNIOR
Interno - 1803692 - FABRICIO GAVA MENEZES
Presidente - 1958858 - LUIZ HENRIQUE DA SILVA GASPAROTTO
Externo ao Programa - 1883170 - MAURICIO ROBERTO BOMIO DELMONTE