کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5673956 | 1593682 | 2017 | 7 صفحه PDF | دانلود رایگان |
- Green synthesis of silver nanoparticles (AgNPs) from Cassia fistula fruits.
- Size of biogenic AgNPs was â¼69Â nm.
- Growth kinetics and dose-dependent studies were performed.
- Potency: 100% for E. coli and 91% in case of K. pneumoniae.
- Minimum inhibitory concentration: E. coli =10 μg mLâ1 and K. pneumoniae = 20 μg mLâ1.
We demonstrated one-step synthesis of silver nanoparticles (AgNPs) from Cassia fistula fruit extract and their antibacterial activity against E. coli and K. pneumoniae. Biogenic AgNPs were characterized by scanning electron microscopy, X-Ray diffraction and fourier transform infrared spectroscopy. Results confirmed spherical shaped AgNPs with an average crystallite size of â¼69 nm. Dose-dependent (0, 10, 20, 40 and 80 μg mLâ1) growth kinetic studies showed 100% potency against E. coli (20 μg mLâ1) and K. pneumoniae (80 μg mLâ1) after 1 and 5 h, respectively. Surface morphology analysis revealed formation of groove/pits in the lysed cell membrane that eventually led to bacterial death.
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Journal: Microbial Pathogenesis - Volume 107, June 2017, Pages 354-360