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مقاله Synthesis and surface modification of core/shell quantum dots with PEG for biological detection and imaging فایل ورد (word) دارای 5 صفحه می باشد و دارای تنظیمات در microsoft word می باشد و آماده پرینت یا چاپ است

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توجه : در صورت  مشاهده  بهم ریختگی احتمالی در متون زیر ،دلیل ان کپی کردن این مطالب از داخل فایل ورد می باشد و در فایل اصلی مقاله Synthesis and surface modification of core/shell quantum dots with PEG for biological detection and imaging فایل ورد (word) ،به هیچ وجه بهم ریختگی وجود ندارد

بخشی از متن مقاله Synthesis and surface modification of core/shell quantum dots with PEG for biological detection and imaging فایل ورد (word) :

سال انتشار: 1391
محل انتشار: اولین کنفرانس بین المللی مواد پیشرفته
تعداد صفحات: 5
نویسنده(ها):
H. Ostadi – Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran
M. Alizadeh – Faculty of Polymer and Color Engineering, Amirkabir University of Technology, Tehran, Iran
S yaghmaei –
M. hakim – Department of Material science and Engineering , Sharif University of Technology, Tehran, Iran

چکیده:

Semi-conductor Quantum dots (QDs) are a unique class of inorganic fluorophore. As a result of their exceptional photophysical properties, they are gathering widespread attention. In this work presented here, cdse/zns core/shell tunable quantum dots were synthesize in two stage by solvothermal method . Their application in biological fluids or aqueous environment requires modulation of chemical nature of quantum dot surfaces. As a result, their solubility is changed and additional chemical functionalities are added. To develop water-soluble, biocompatible QD micelles, the core-shell CdSe/ZnS of red emission were synthesized and capped in poly ethylene glycol (PEG).The resulting QDs-polymer nanocomposite particles are suitable for applications in biomedical imaging and detection, as a consequence of their colloidally stability in water suspensions and exhibition of good photostability. The core/shell structure was proved by approach characterizations such as transmission electron microscopy(TEM), Fourier transform infrared (FTIR), UV- Spectrometry and photo luminescence spectroscopy

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