Biosynthesis of silver nanocrystals by Bacillus licheniformis.
The use of microorganisms for the synthesis of nanoparticles is in the limelight of modern nanotechnology. Using the bacterium Bacillus licheniformis, the biosynthesis of silver nanoparticles was investigated. These silver nanoparticles were characterized by means of UV-vis spectroscopy, scanning electron microscopy (SEM), electron diffraction spectroscopy (EDX) and X-ray diffraction (XRD). The nanoparticles exhibited maximum absorbance at 440 nm in UV-vis spectroscopy. The XRD spectrum of silver nanoparticles exhibited 2theta values corresponding to the silver nanocrystal. SEM micrographs revealed the formation of well-dispersed silver nanoparticles of 50 nm, and the presence of silver was confirmed by EDX analysis.
Kalimuthu
Kalishwaralal
K
Department of Biotechnology, Kalasalingam University, Anand Nagar, Krishnankoil 626190, Tamilnadu, India.
Suresh Babu
Ramkumarpandian
R
Venkataraman
Deepak
D
Bilal
Mohd
M
Gurunathan
Sangiliyandi
S
D001407:Bacillus / Q000378:metabolism*; D053768:Metal Nanoparticles; D008855:Microscopy, Electron, Scanning; D050901:Nitrate Reductase / Q000378:metabolism; D012835:Silver Nitrate / Q000378:metabolism*; D014961:X-Ray Diffraction
D012835:Silver Nitrate; D050901:Nitrate Reductase