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Citation: WEN Li-Qun, LV Jian-Quan, LV Han-Qing, ZHOU Xing-Wang, SUN Ting-Quan. Effect of Amino Acid on the Fluorescence of CdTe Quantum Dots[J]. Acta Physico-Chimica Sinica, ;2008, 24(04): 725-728. doi: 10.3866/PKU.WHXB20080432 shu

Effect of Amino Acid on the Fluorescence of CdTe Quantum Dots

1.
Hubei Key Laboratory of Bioanalytical Technique, Hubei Normal University, Huangshi 435002, Hubei Province, P. R. China; College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China

Received Date: 17 October 2007
Available Online: 21 January 2008

Water-soluble CdTe quantum dots (GdTe-Qs) were prepared using mercaptocarboxylic acid as stabilizer, and effects of pH and amino acids on fluorescence of CdTe-QDs were investigated. The results revealed that the fluorescence of the CdTe-QDs varied with the change of pH, and the alanine and serine could quench the fluorescence while cysteine enhanced the fluorescence.
- CdTe quantum dots; Amino acid; Fluorescence
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