title: Preparation and bioapplication of high-quality, water-soluble, biocompatible, and near-infrared-emitting CdSeTe alloyed quantum dots.
abstract: A facile method is developed for the preparation of high-quality, water-soluble, and near-infrared (NIR)-emitting CdSeTe alloyed quantum dots (AQdots) with L-cysteine as the capping agent. By changing the size and the composition of AQdots the photoluminescent quantum yield (QY) can reach as high as 53% and the emission color can be tuned between visible and NIR regions (580-814 nm). Furthermore, the prepared NIR-emitting AQdots have been successfully applied for HL-60 cell imaging and glucose and cholesterol assay, which demonstrates the great potential of the AQdots for biological applications.
authors.affiliation: Key Laboratory of Analytical Chemistry for Life Science (MOE), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, People's Republic of China.
authors.forename: Guo-Xi
authors.initials: GX
authors.lastname: Liang
authors.forename: Miao-Miao
authors.initials: MM
authors.lastname: Gu
authors.forename: Jian-Rong
authors.initials: JR
authors.lastname: Zhang
authors.forename: Jun-Jie
authors.initials: JJ
authors.lastname: Zhu
mesh_terms: D000497:Alloys / Q000138:chemical synthesis / Q000737:chemistry*; D002104:Cadmium / Q000737:chemistry*; D003952:Diagnostic Imaging / Q000379:methods*; D018922:HL-60 Cells; D006801:Humans; D036103:Nanotechnology / Q000379:methods*; D045663:Quantum Dots; D012643:Selenium / Q000737:chemistry*; D013691:Tellurium / Q000737:chemistry*
chemical_list: D000497:Alloys; D002104:Cadmium; D012643:Selenium; D013691:Tellurium