DR BRAJ RAJ SINGH,MOHD SHOEB,DR WASI KHAN,DR ALIM H NAQVI
申请号：
IN2184/DEL/2014
公开号：
IN2014DE02184A
申请日:
2014.08.01
申请国别(地区):
IN
年份:
2014
代理人:
摘要：
The development of green fluorescent tin oxide quantum dots (Sn02 QDs) through the biogenic approach has remained unexplored. Herein, a simple, single-step route for the synthesis SnOa QDs by using egg albumin is reported. The Sn02 QDs are characterized by UV-vis spectroscopy. X-ray diffraction (XRD) Fourier transform infrared (FT-IR) spectroscopy,, energy dispersive X-ray analysis (EDXA), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and Thermogravimetric analysis (TGA) techniques. The Sn02 QDs also show green fluorescence under ultra-violet light. The plausible mechanistic aspect of the invention involves the interaction of egg albumin with Sn4+ ions, made the metal ions to be rich around negative ion groups of egg albumin in aqueous condition. As a result, the Sn02 crystal nucleus induced by egg albumin was obtained, and the electronegative egg albumin proteins also direct and control the growth and the final size of Sn02 QDs.
