Abstract In this article, we describe a simple one-pot rapid synthesis route to produce uniform silver nanoparticles by thermal reduction
of AgNO3 using oleylamine as reducing and capping agent. To enhance the dispersal ability of as-synthesized hydrophobic silver nanoparticles
in water, while maintaining their unique properties, a facile phase transfer mechanism has been developed using biocompatible
block co-polymer pluronic F-127. Formation of silver nanoparticles is confirmed by X-ray diffraction (XRD), transmission electron
microscopy (TEM) and UV–vis spectroscopy. Hydrodynamic size and its distribution are obtained from dynamic light scattering
(DLS). Hydrodynamic size and size distribution of as-synthesized and phase transferred silver nanoparticles are 8.2 ± 1.5 nm
(σ = 18.3%) and 31.1 ± 4.5 nm (σ = 14.5%), respectively. Antimicrobial activities of hydrophilic silver nanoparticles is tested
against two Gram positive (Bacillus megaterium and Staphylococcus aureus), and three Gram negative (Escherichia
coli, Proteus
vulgaris and Shigella
sonnei) bacteria. Minimum inhibitory concentration (MIC) values obtained in the present study for the tested microorganisms are
found much better than those reported for commercially available antibacterial agents.
of AgNO3 using oleylamine as reducing and capping agent. To enhance the dispersal ability of as-synthesized hydrophobic silver nanoparticles
in water, while maintaining their unique properties, a facile phase transfer mechanism has been developed using biocompatible
block co-polymer pluronic F-127. Formation of silver nanoparticles is confirmed by X-ray diffraction (XRD), transmission electron
microscopy (TEM) and UV–vis spectroscopy. Hydrodynamic size and its distribution are obtained from dynamic light scattering
(DLS). Hydrodynamic size and size distribution of as-synthesized and phase transferred silver nanoparticles are 8.2 ± 1.5 nm
(σ = 18.3%) and 31.1 ± 4.5 nm (σ = 14.5%), respectively. Antimicrobial activities of hydrophilic silver nanoparticles is tested
against two Gram positive (Bacillus megaterium and Staphylococcus aureus), and three Gram negative (Escherichia
coli, Proteus
vulgaris and Shigella
sonnei) bacteria. Minimum inhibitory concentration (MIC) values obtained in the present study for the tested microorganisms are
found much better than those reported for commercially available antibacterial agents.
- Content Type Journal Article
- Category Research Paper
- DOI 10.1007/s11051-009-9845-1
- Authors
- Bhupendra Chudasama, Thapar University School of Physics & Materials Science Patiala 147004 India
- Anjana K. Vala, Bhavnagar University Department of Physics Bhavnagar 364022 India
- Nidhi Andhariya, Bhavnagar University Department of Physics Bhavnagar 364022 India
- R. V. Mehta, Bhavnagar University Department of Physics Bhavnagar 364022 India
- R. V. Upadhyay, Charotar University of Science and Technology P.D. Patel Institute of Applied Sciences Education Campus Changa 388421 India
- Journal Journal of Nanoparticle Research
- Online ISSN 1572-896X
- Print ISSN 1388-0764
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