Antibacterial Action of Chemically Synthesized and Laser Generated Silver Nanoparticles against Human Pathogenic Bacteria
来源期刊：JOURNAL OF MATERIALS SCIENCE TECHNOLOG2016年第8期
论文作者：Jawad Nazir Syeda Ammara
文章页码：721 - 728
摘 要：Silver nanoparticles in the range of 10–40 nm were synthesized chemically and by laser ablation, employed for in vitro antibacterial action against human pathogenic bacterium. Their formation was evidenced by UV-visible spectrophotometer; particle size confirmed by atomic force microscopy, crystal structure determined by X-ray diffraction and chemical composition investigated by Fourier transform infrared spectroscopy. The calculated MIC（minimum inhibitory concentration） of chemically synthesized nanoparticles with 30–40 nm in size are 2.8 μg/m L, 4.37 μg/m L, 13.5 μg/m L and 2.81 μg/m L for E. coli, S. aureus, B. subtillis and Salmonella, respectively. Whereas laser ablated nanoparticles exhibit MIC of 2.10 μg/m L, 2.36 μg/m L and 2.68 μg/m L for E. coli, S. aureus and Salmonella, respectively.
Jawad Nazir2，Syeda Ammara1,3
2. Department of Microbiology, University of Veterinary and Animal Sciences3. Department of Physics, Forman Christian College, A Charted University
摘 要：Silver nanoparticles in the range of 10–40 nm were synthesized chemically and by laser ablation, employed for in vitro antibacterial action against human pathogenic bacterium. Their formation was evidenced by UV-visible spectrophotometer; particle size confirmed by atomic force microscopy, crystal structure determined by X-ray diffraction and chemical composition investigated by Fourier transform infrared spectroscopy. The calculated MIC（minimum inhibitory concentration） of chemically synthesized nanoparticles with 30–40 nm in size are 2.8 μg/m L, 4.37 μg/m L, 13.5 μg/m L and 2.81 μg/m L for E. coli, S. aureus, B. subtillis and Salmonella, respectively. Whereas laser ablated nanoparticles exhibit MIC of 2.10 μg/m L, 2.36 μg/m L and 2.68 μg/m L for E. coli, S. aureus and Salmonella, respectively.
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