Amine-Functionalized Lanthanide-Doped KGdF4 Nanocrystals as Potential Optical/Magnetic Multimodal Bioprobes
Journal of the American Chemical Society2011Vol. 134(2), pp. 1323–1330
Citations Over TimeTop 1% of 2011 papers
Qiang Ju, Datao Tu, Yongsheng Liu, Renfu Li, Haomiao Zhu, Jincan Chen, Zhuo Chen, Mingdong Huang, Xueyuan Chen
Abstract
Amine-functionalized lanthanide-doped KGdF(4) 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 Gd(3+) (5.86 S(-1)·mM(-1) per Gd ion and 3.99 × 10(5) S(-1)·mM(-1) per nanocrystal).
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