Biosynthesis of silver nanoparticles by fungi isolated from municipal waste (original) (raw)

A total of 25 fungal species were isolated from soil samples using soil dilution techniques collected from municipal waste located in Bhubaneswar, Odisha, India. Out of which two fungal isolates were found to be responsible for the production of silver nanoparticles. The synthesized nanoparticles were characterized by UV-Vis Spectrophotometer and the maximum absorbance was found to be at 414 and 420nm, respectively. The particle size and shape was studied by Scanning Electron Microscope (SEM), Field Emission Scanning Electron Microscope (FESEM) and Transmission Electron Microscope (TEM). The nature of the nanoparticles was identified by Elemental analysis (EDAX). The synthesized nanoparticles are identified as spherical, rod as well as irregular shaped having size of 48-68nm. The synthesis of nanoparticles by biological method has greater advantages over the physical and chemical methods, as it is environmentally safe or eco-friendly and economically one. Biosynthesis of silver nanoparticles is the ecofriendly, safe and cost effective way and its antibacterial properties also used in clinical purposes to cure or minimizing the diseases.

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