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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 59, Number 2
JKCSEZ 59(2)
April 20, 2015

Title	Synthesis and Characterization of CdSe/CdS/N-Acetyl-L-Cysteine/Quercetin Nano-Composites and Their Antibacterial Performance
Author	Kunjie Wang, Mingliang Li, Hongxia Li, Feng Guan, Deyi Zhang, Huixia Feng, Haiyan Fan
Keywords	Quantum dots, Core-shell, CdSe/CdS, Quercetin
Abstract	We have discovered that quercetin, once coated on the CdSe and CdSe-CdS quantum dots (QDs), becoming highly water soluble. In the present work, we have successfully synthesized CdSe/CdS/N-Acetyl-L-Cysteine(NAC)/Quercetin nano-composites in the aqueous solution. The products were characterized using UV-vis spectroscopy, X-ray powder diffraction, fluorescence spectroscopy, and Fourier transform infrared spectroscopy. The transmission electron microscopy (TEM) tests indicated that our nano-composite products are highly stable with homogeneous particle size and great monodispersity. Quercetin coated nano-composite CdSe/CdS/NAC/Quercetin showed different fluorescence behavior from that of CdSe/CdS/ NAC. Most amazingly, the synthesized CdSe/CdS/NAC/Quercetin nano-composite exhibits strong antibacterial activity. The combination of the strong fluorescence and its antibacterial activity makes the quercetin modified quantum dots as a potential candidate for cancer targeted therapy and other cancer treatments.
Page	136 - 141
Full Text	PDF

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