Citation: Shui-Ping Liu, Jia-Jia Fu, Meng-Juan Li, Lin Lin, Xiao-Qiang Li, Ming-Qiao Ge. Preparation, characterization and biocompatibility of aspartic acid modified CdTe quantum dots[J]. Chinese Chemical Letters, ;2014, 25(6): 933-936. doi: 10.1016/j.cclet.2014.01.013 shu

Preparation, characterization and biocompatibility of aspartic acid modified CdTe quantum dots

Shui-Ping Liu ^a,b,, ,
Jia-Jia Fu ^a,b ,
Meng-Juan Li ^a,b ,
Lin Lin ^c ,
Xiao-Qiang Li ^a,b,d ,
Ming-Qiao Ge ^a,b

1.
a Key Laboratory of Eco-Textiles, Ministry of Education (Jiangnan University), Wuxi 214122, China;
2.
b College of Textile & Clothing, Jiangnan University, Wuxi 214122, China;
3.
c School of Food & Biological Engineering, Jiangsu University, Zhenjiang 212013, China;
d Technical University of Denmark, DTU Food, Søltofts Plads B227, 2800 Kgs.
d Technical University of Denmark, DTU Food, Søltofts Plads B227, 2800 Kgs. Lyngby, Denmark

Corresponding author: Shui-Ping Liu,
Received Date: 22 November 2013
Available Online: 26 December 2013
Fund Project: This study has been funded by the Danish Strategic Research Council (No. DSF-1'-93456, FENAMI Project) (No. DSF-1'-93456, FENAMI Project) the Fundamental Research Funds for the Central Universities (No. JUSRP1042) (No. JUSRP1042) the Open Project Program of Key Laboratory of Eco-textiles, Ministry of Education, Jiangnan University (No. KLET1202) (No. KLET1202)

This study aims at preparing water soluble aspartic acid (ASP)modified CdTe quantum dots with tunable fluorescence emission controlled by reaction time. The size of the synthesized CdTe quantum dots was evaluated using transmission electron microscope (TEM) and also calculated based on their UV-vis spectra. The optical properties of TGA-CdTe quantum dots were characterized by UV-vis and fluorescence (FL) spectroscopy. The red-shift in the UV-vis absorption and FL emission with the increase of reaction time was observed. The biocompatibility examination indicated that the ASP modified CdTe QDs had low cytotoxicity.
- Water-soluble quantum dots,
- CdTe,
- Surface modification,
- Biocompatibility
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