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Title: Anti-fungal activity of SiO(2)/Ag(2)S nanocomposites against Aspergillus niger
Author: Fateixa, Sara
Neves, Márcia C.
Almeida, Adelaide
Oliveira, João
Trindade, Tito
Keywords: Silver sulfide
Anti-fungal activity
Issue Date: Nov-2009
Publisher: Elsevier
Abstract: Submicron particles of amorphous SiO2 have been used to grow Ag2S nanophases at their surfaces. SEM and TEM analysis showed morphological well-defined nanocomposite particles consisting of Ag2S nanocrystals dispersed over the silica surfaces. These SiO2/Ag2S nanocomposites were investigated as anti-fungal agents against Aspergillus niger in different experimental conditions, including as nanofillers in cellulosic fibres. The anti-fungal activity in these composite systems is suggested to result from a synergistic effect due to Ag2S anti-fungal centres and the SiO2 surfaces in promoting the adsorption of the fungus.
Peer review: yes
DOI: 10.1016/j.colsurfb.2009.07.037
ISSN: 0927-7765
Appears in Collections:DQ - Artigos

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