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Int J Mol Sci. 2011;12(9):6346-56. doi: 10.3390/ijms12096346. Epub 2011 Sep 23.

Fabrication and characterization of gelatin stabilized silver nanoparticles under UV-light.

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  • 1Department of Chemistry, Universiti Putra Malaysia, UPM Serdang 43400, Selangor, Malaysia; E-Mail: mansorahmad@science.upm.edu.my.

Abstract

Silver nanoparticles (Ag-NPs) were successfully synthesized using the UV irradiation of aqueous solutions containing AgNO(3) and gelatin as a silver source and stabilizer, respectively. The UV irradiation times influence the particles' diameter of the Ag-NPs, as evidenced from surface plasmon resonance (SPR) bands and transmission electron microscopy (TEM) images. When the UV irradiation time was increased, the mean size of particles continuously decreased as a result of photoinduced Ag-NPs fragmentation. Based on X-ray diffraction (XRD), the UV-irradiated Ag-NPs were a face-centered cubic (fcc) single crystal without any impurity. This study reveals that the UV irradiation-mediated method is a green chemistry and promising route for the synthesis of stable Ag-NPs for several applications (e.g., medical and surgical devices). The important advantages of this method are that it is cheap, easy, and free of toxic materials.

KEYWORDS:

UV-Vis spectroscopy; UV-light; gelatin; silver nanoparticles; stabilizer

PMID:
22016663
[PubMed - in process]
PMCID:
PMC3189787
Free PMC Article
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