Synthesis of Chitosan Stabilized Silver Nanoparticles using Gamma Ray Irradiation and Characterization
dc.contributor.author | Hettiarachchi, M.A. | |
dc.contributor.author | Wickramarachchi, P.A.S.R. | |
dc.date.accessioned | 2015-02-27T06:02:15Z | |
dc.date.available | 2015-02-27T06:02:15Z | |
dc.date.issued | 2011 | |
dc.description.abstract | Chitosan stabilized silver nanoparticles (AgNPs) were synthesized using gamma ray irradiation. Four different sample solutions were prepared [1 mM AgNO3 in 0.1% (w/v) chitosan, 1 mM AgNO3 in 0.5% (w/v) chitosan, 2 mM AgNO3 in 0.1% (w/v) chitosan 2 mM AgNO3 in 0.5% (w/v) chitosan] with controls maintaining dose of radiation at 20±2 kGy. The formation of AgNPs were determined by the appearance of the characteristic colour of the AgNPs, using the surface plasmon resonance band (SPR) at 400-432 nm range and the N-H band of the FT-IR spectrum. Stability of the maximum absorption wave lengths of the samples was monitored for three months by UV-visible spectroscopy. The particle size distribution of the stabilized sample, showed a wide distribution of 28-1106 nm. The sample, 2 mM AgNO3 in 0.5% (w/v) chitosan was stable for three months. FT-IR spectroscopic analysis revealed a shifting of N-H stretching vibration band from 3367-3228 cm-1 with the introduction of nanoparticles. | en_US |
dc.identifier | Chemistry | en_US |
dc.identifier.citation | Hettiarachchi, M.A. and Wickramarachchi, P.A.S.R. (2011). Synthesis of Chitosan Stabilized Silver Nanoparticles using Gamma Ray Irradiation and Characterization, Journal of Science, University of Kelaniya, 6: 65-75. | en_US |
dc.identifier.issn | Chemistry | |
dc.identifier.uri | ||
dc.identifier.uri | http://repository.kln.ac.lk/handle/123456789/5444 | |
dc.language.iso | en | en_US |
dc.publisher | University of Kelaniya | en_US |
dc.subject | Silver nanoparticles | en_US |
dc.subject | Chitosan | en_US |
dc.subject | Gamma ray irradiation | en_US |
dc.title | Synthesis of Chitosan Stabilized Silver Nanoparticles using Gamma Ray Irradiation and Characterization | en_US |
dc.type | Article | en_US |