期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 134, 期 2, 页码 1323-1330出版社
AMER CHEMICAL SOC
DOI: 10.1021/ja2102604
关键词
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资金
- Chinese Academy of Sciences (CAS)
- CAS for Key Topics [KJCX2-YW-358]
- NSFC [10974200, 51002151, 51102234]
- MOST [2009AA03Z430, 2011AA03A407]
- NSF of Fujian Province for Young Scientists [2010J05126]
Amine-functionalized lanthanide-doped KGdF4 nanocrystals, synthesized via a facile one-step solvothermal route by employing polyethylenimine as the surfactant and capping ligand, have been demonstrated to be sensitive time-resolved FRET bioprobes to detect a trace amount of biomolecules such as avidin at a concentration of 5.5 nM and to be potential T-1-MRI contrast agents due to a large longitudinal relaxivity of Gd3+ (5.86 S-1 center dot mM(-1) per Gd ion and 3.99 X 10(5) S(-1 center dot)mM(-1) per nanocrystal).
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