Anti-fungal activity of SiO2/Ag2S nanocomposites against Aspergillus niger |
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| Authors: | Sara Fateixa, M rcia C. Neves, Adelaide Almeida, Jo o Oliveira,Tito Trindade |
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| Affiliation: | aUniversity of Aveiro, CICECO and Department of Chemistry, 3810-193 Aveiro, Portugal;bUniversity of Aveiro, CESAM and Department of Biology, 3810-193 Aveiro, Portugal |
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| 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. |
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| Keywords: | Silver sulfide Anti-fungal activity Nanoparticles Silica |
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