Document Detail

Synthesis of high-quality water-soluble near-infrared-emitting CdTe quantum dots capped with 3-mercaptobutyric acid.
MedLine Citation:
PMID:  24757965     Owner:  NLM     Status:  In-Process    
Highly fluorescent CdTe quantum dots (QDs) with emission in red to near-infrared (NIR) wavelength were successfully prepared by using 3-mercaptobutyric acid (3MBA) as capping agent. The maximum of quantum yield (QY) could reach up to 82% for QDs with emission peak at 686 nm and FWHM of 66 nm at optimal conditions. The QY of these QDs could maintain above 65% in the 650-750 nm region and QDs with emission over 800 nm were still strong fluorescent (28-41%). These optical properties of CdTe quantum dots are among the best results prepared by the state-of-the-art methods, suggesting their promising applications in bio-imaging. The success of 3MBA as excellent capping agent in this method was attributed to the balanced chain length and methyl side chain in comparison to a series of linear and branched mercapto acids, namely thioglycolic acid, thiolactic acid, 3-mercaptopropionic acid, 4-mercaptobutyric acid, 5-mercaptovaleric acid, 4-mercaptovaleric acid and 3-mercapto-2-methylbutyric acid.
Kai-Guo Ma; Jin-Yi Bai; Tan Fang; Hai-Qing Guo
Related Documents :
19936975 - Death of a toddler due to ingestion of sulfuric acid at a clandestine home methamphetam...
15061595 - Sensitivity of ornithophillic fungi to some drugs.
6280125 - Analysis of creams. ii. quantitative determination of drugs in creams by titration in n...
12542285 - Alkyl amides and nitriles as novel tracers for biomass burning.
15603775 - Preparation of biodegradable networks by photo-crosslinking lactide, epsilon-caprolacto...
10438025 - Effect of the ratio between essential and nonessential amino acids in the diet on utili...
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of nanoscience and nanotechnology     Volume:  14     ISSN:  1533-4880     ISO Abbreviation:  J Nanosci Nanotechnol     Publication Date:  2014 Jul 
Date Detail:
Created Date:  2014-04-24     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101088195     Medline TA:  J Nanosci Nanotechnol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  4940-8     Citation Subset:  IM    
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Synthesis and characterization of ZnS-TiO2 photocatalyst and its excellent sun light driven catalyti...
Next Document:  Magnetic activated carbon-Fe3O4 nanocomposites--synthesis and applications in the removal of acid ye...