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Novel Preparation of Biocompatible, strong and broad Fluorescent Silver Nanodots

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Abstract

Simple and biocompatible synthesis of silver nanodots using thermal etching of silver nanoparticles in polyethylene glycol at different temperatures is presented. Etching at 100°C –170°C temperatures leads to the formation of broad and strong fluorescent Ag nanodots in the band (300–550nm) with a reduced plasmon peak. At 200°C–250°C temperatures, the nanodots size increases with a red-shift absorption. Leading to a narrow fluorescence in (510–580nm) region.

© 2016 Optical Society of America

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