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Characterization of Silver Nanoparticle in the Carboxymethyl Cellulose Hydrogel Prepared by a Gamma Ray Irradiation

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In this study, carboxymethyl cellulose (CMC) hydrogels were traditionally prepared by gamma-ray with an absorbed dose of 50 kGy from a 60Co source. The CMC hydrogels were absorbed and swelled in silver nitrate aqueous solution (0.01 M) by dipping for 1 hour, and then irradiated by gamma-ray at various doses to form silver nanoparticles (Ag NPs). The UV-Vis analysis indicated that the concentration of Ag NPs was enhanced by increasing of absorbed dose from 1 to 5 kGy in this situ reducing system. The FE-SEM and XPS measurements provided further evidence for the successful formation of Ag NPs. These CMC hydrogels stabilized Ag NPs also have been investigated for inhibiting the growth of Staphylococcus aureus and Escherichia coli strains in liquid as well as on solid growth media. The antibacterial tests indicated that the hydrogels containing Ag NPs have antibacterial activity.


Document Type: Research Article


Publication date: 2012-01-01

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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