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The fabrication of silver nanoparticles was accomplished by γ-ray irradiation reduction of silver nitrate in a chitosan solution. The obtained nanoparticles were stable in the solution for more than six months, and showed the characteristic surface plasmon band at 411nm as well as a positively charged surface with 40.4±2.0mV. The silver nanoparticles presented a spherical shape with an average size...
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