Antibacterial properties of photochemically prepared AgTiO2 membranes
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Otros documentos de la autoría: Che Abdul Rahim, Azzah Nazihah; Hoshida, Hisashi; Mestre Beltrán, Sergio; kumakiri, izumi
Metadatos
Mostrar el registro completo del ítemcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/7033
comunitat-uji-handle3:10234/8618
comunitat-uji-handle4:
INVESTIGACIONMetadatos
Título
Antibacterial properties of photochemically prepared AgTiO2 membranesFecha de publicación
2023Editor
IWA PublishingISSN
0273-1223Tipo de documento
info:eu-repo/semantics/articleVersión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
Biofouling reduces the membrane performance and has become a problem in many applications. One of the strategies to reduce biofouling is
to apply antibacterial materials to the membrane surface, which prevents the ... [+]
Biofouling reduces the membrane performance and has become a problem in many applications. One of the strategies to reduce biofouling is
to apply antibacterial materials to the membrane surface, which prevents the attachment and growth of microorganisms. In this study, the
surface of flat ceramic supports was covered with TiO2 powder, and silver was applied by photoreduction using a CH3COOAg solution at room
temperature. After the photoreduction, AgOx and metallic silver were found on the TiO2 as analyzed by XPS. While a negligible amount of
silver was released from the prepared AgTiO2 membranes into water, the dissolution of silver was enhanced in a 0.09 M NaCl solution.
The AgTiO2 membranes inhibited the growth of Escherichia coli in dark conditions. The inhibition cannot be explained only by the concentration of silver ions released from the membranes. Microscopic observation showed that direct contact with AgTiO2 kills E. coli. The results
showed the possibility of improving the antibacterial activity of membranes by applying an AgTiO2 coating. [-]
Entidad financiadora
JST SICORP
Código del proyecto o subvención
JPMJSC18C5
Derechos de acceso
info:eu-repo/semantics/openAccess
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