A one-pot aqueous synthesis of high-luminescent thiol-capped CdTe and its bioapplication.
Our study described a synthesis of thiol-capped high-luminescent (quantum yield as high as 80%) CdTe quantum dots (QDs) with a facile method in aqueous phase. The fluorescence of the as-prepared CdTe QDs could be tuned from 500 nm to 650 nm. More importantly, after beta-actin conjugation, the CdTe QDs were successfully conjugated with live cells to observe their configurations, demonstrating their potentially broad application as biolabels. The crystal structure, morphology and optical property of the products were investigated by X-ray diffraction (XRD), high resolution transmission electron microscopy (HRTEM) and fluorescence spectrophotometer.
School of Life Science, Shandong University, Jinan 250100, Shandong, PR China.
Ling
L
Wang
Haibo
H
Gong
Ruijuan
R
Lv
Yongzhong
Y
Wu
Tianhong
T
Wang
D015374:Biosensing Techniques; D019187:Cadmium Compounds / Q000138:chemical synthesis* / Q000737:chemistry; D049408:Luminescent Agents / Q000138:chemical synthesis* / Q000737:chemistry; D046529:Microscopy, Electron, Transmission; D058726:Nanoconjugates / Q000737:chemistry; D010316:Particle Size; D045663:Quantum Dots; D013050:Spectrometry, Fluorescence; D013438:Sulfhydryl Compounds / Q000138:chemical synthesis* / Q000737:chemistry; D013691:Tellurium / Q000737:chemistry; D014961:X-Ray Diffraction
D019187:Cadmium Compounds; D049408:Luminescent Agents; D058726:Nanoconjugates; D013438:Sulfhydryl Compounds; D013691:Tellurium; C028337:cadmium telluride