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- Title
BIOSYNTHESIS OF GOLD NANOPARTICLES BY FOOD ORIGIN CITROBACTER FREUNDII.
- Authors
Hashim, Mohammed Hayder; AlKhafaji, Marwa Hameed
- Abstract
ld nanoparticles (AuNPs) biosynthesized for first time world-wide using food origin isolates of Citrobacter freundii. The biosynthesis of AuNPs was firstly observed by visual remark and then characterized with the help of different characterization techniques such as atomic force microscopy (AFM) analysis, Uv-vis spectroscopy, Fourier-transform infrared spectroscopy (FTIR) analysis and scanning Electron Microscope (SEM), which revealed that the biosynthesized AuNPs were roughly spherical and poly-dispersed within size range of 30-60 nm. Optimization of AuNPs biosynthesis by C. freundii was performed for several parameters (concentration of cell filtrate, temperature, pH and concentration gold salt) and the results revealed that undiluted cell filtrate, temperature 60°C, pH range from 5 to 9 and 2mM gold salt concentration were the optimum conditions for AuNPs biosynthesis by C. freundii.
- Publication
Biochemical & Cellular Archives, 2018, Vol 18, Issue 2, p1971
- ISSN
0972-5075
- Publication type
Article