کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5400110 | 1505918 | 2013 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Microwave-assisted synthesis of l-glutathione capped ZnSe QDs and its interaction with BSA by spectroscopy
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Stable, water-soluble and biologically compatible ZnSe quantum dots (QDs) with l-glutathione (GSH) as a capping agent were synthesized in aqueous medium by microwave irradiation. The GSH/Zn/Se molar ratios, reaction temperature, time and pH are the crucial factors for properties of QDs. Fluorescence (FL) spectra, absorption spectra, transmission electron microscopy (TEM), X-ray powder diffraction (XRD) and Fourier transform infrared (FTIR) spectra studies showed that the optical properties of QDs were strong, shape of QDs was similar to spherical and the particle size was about 2-3Â nm. The 42% quantum yield (QY) of QDs can be achieved without any post-preparative treatment. The interaction of QDs bioconjugated to bovine serum albumin (BSA) was also studied by absorption and FL spectra experiments. With addition of QDs, the FL intensity of BSA was largely quenched, which can be explained by static mechanism. The results suggested the QDs-BSA binding reaction was a static quenching.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Luminescence - Volume 142, October 2013, Pages 167-172
Journal: Journal of Luminescence - Volume 142, October 2013, Pages 167-172
نویسندگان
Ling Ding, Pei-Jiang Zhou, Hong-Ju Zhan, Chi Chen, Wei Hu, Teng-Fei Zhou, Chao-Wang Lin,