Current Issue : July-September Volume : 2016 Issue Number : 3 Articles : 1 Articles
Alpinia galanga willd., (family - zingeberaceae), is a holistic gift of nature. It is a perineal herb found in Asia. The aqueous extract of its rhizome was used to produce pharmaceutically important silver nanoparticles. The formation of silver nanoparticles was confirmed by colour change from yellowish orange to dark red colour. Absorption spectra of UV analysis have shown maximum absorbance at 423 nm, for the particles obtained by process of sonication maximum absorbance was observed at a range of 220 nm. Absence of peaks in the range of 450 to 700 nm indicates absence of aggregation of silver nanoparticles. FTIR peaks were observed at 1639, 2987, 3248, 3538 cm-1. SEM analysis resulted in particle size range of 50 to 70 nm. The X-ray diffraction pattern confirmed the amorphous nature of prepared silver nanoparticles. The nanoparticles synthesized were effective on organisms causing dental caries by producing a zone of 15.1 mm in case of microbes from dental swab and 14.3 mm in case of lactobacillus isolates....
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