Fungal mediated biosynthesis of silver nanoparticles, characterization and antimicrobial activity

Microbial assisted biosynthesis of nanoparticles is a rapidly progressing area of nanobiotechnology. In this paper Aspergillus niger assisted extracellular synthesis of silver nanoparticles is reported. The silver nanoparticles were characterized by UV–vis spectrophotometry, TEM, EDX and FTIR. TEM s...

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Veröffentlicht in:	Colloids and surfaces, B, Biointerfaces B, Biointerfaces, 2010-12, Vol.81 (2), p.430-433
Hauptverfasser:	Jaidev, L.R., Narasimha, G.
Format:	Artikel
Sprache:	eng
Schlagworte:	Anti-Infective Agents - chemistry Anti-Infective Agents - metabolism Anti-Infective Agents - pharmacology Antimicrobial activity Aspergillus niger Aspergillus niger - drug effects Aspergillus niger - isolation & purification Aspergillus niger - metabolism Bacillus - drug effects Bacteria Biotechnology Escherichia coli - drug effects FTIR Metal Nanoparticles - chemistry Metal Nanoparticles - ultrastructure Microbial Sensitivity Tests Microorganisms Microscopy, Electron, Transmission Nanoparticles Nanostructure Nanotechnology Nitrate reductase Particle Size Silver Silver - chemistry Silver - metabolism Silver - pharmacology Silver nanoparticles Staphylococcus - drug effects Surface Properties Synthesis TEM Transmission electron microscopy
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Zusammenfassung:	Microbial assisted biosynthesis of nanoparticles is a rapidly progressing area of nanobiotechnology. In this paper Aspergillus niger assisted extracellular synthesis of silver nanoparticles is reported. The silver nanoparticles were characterized by UV–vis spectrophotometry, TEM, EDX and FTIR. TEM studies showed the size of the silver nanoparticles to be in the range of 3–30 nm. The probable mechanism for the extracellular synthesis of silver nanoparticles by Aspergillus niger was investigated. The nanoparticles showed antimicrobial activity against fungal and bacterial strains.
ISSN:	0927-7765 1873-4367
DOI:	10.1016/j.colsurfb.2010.07.033