纳米医学与纳米技术杂志

抽象的

Characterization and Antibacterial Activity of Synthesized Silver and Iron Nanoparticles using Aloe vera

Yadav JP, Kumar S, Budhwar L, Yadav A and Yadav M

The main aim of this study was to evaluate the comparative antibacterial potential of silver and Iron nanoparticles synthesized from aqueous plant extracts of Aloe vera. The synthesized nanoparticles were characterzed by UV-VIS spectroscopy, Fourier Transform Infra-Red spectroscopy and Transmission Electron Microscopy. The antibacterial activity of synthesized silver and iron nanoparticles was compared by agar well diffussion method and minimum inhibitory concentration was also calculated. The zone of inhibition varied in range of 9 to 18 mm for silver nanoparticales and 10 to17 mm for iron nanoparticles. The maximum zone of inhibition for silver nanoparticles was 18 mm against Proteus mirabilis. The maximum zone of inhibition for iron nanoparticles was 17 mm against Klebsiella pneumonia. MICs of silver nanoparticles were found to be in a range from 195 to 780 μg/ml and that of iron was 390 to 1560 μg/ml against tested microbes. The synthesized silver nanoparticles of aqueous Aloe vera extracts have shown good antibacterial efficacy as compared to iron nanoparticles and may prove to be better antibacterial agent against wide range of microbes.