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Biosynthesis of silver nanoparticles by Variovorax guangxiensis THG-SQL3 and their antimicrobial potential
Ist Teil von
Materials letters, 2016-09, Vol.178, p.75-78
Ort / Verlag
Elsevier B.V
Erscheinungsjahr
2016
Link zum Volltext
Quelle
Elsevier ScienceDirect Journals Complete
Beschreibungen/Notizen
The present study described biosynthesis of silver nanoparticles (AgNPs) using a bacterial strain Variovorax guangxiensis THG-SQL3, isolated from soil, and their application in antibacterial activity. The synthesized AgNPs were characterized by several instrumental techniques, showed maximum absorbance at 418nm and were mostly irregular spherical in shape with particle size in range of 10–40nm. The synthesized AgNPs exhibited antimicrobial activity against various pathogens including Staphylococcus aureus, Vibrio parahaemolyticus, Candida albicans, Candida tropicalis, Pseudomonas aeruginosa, Escherichia coli, Bacillus subtilis and Bacillus cereus. In addition, the AgNPs in combination with commercial antibiotics enhanced antimicrobial activity against P. aeruginosa, Salmonella enterica, E. coli and V. parahaemolyticus. The AgNPs synthesized by strain V. guangxiensis THG-SQL3 are comparatively simple, green, cost-effective and may serve as a potential antimicrobial agent.
•Green synthesis of silver nanoparticles from Variovorax guangxiensis THG-SQL3.•Silver nanoparticles showed antibacterial activity.•Silver nanoparticles enhance the antimicrobial activity of commercial antibiotics.