Upconversion luminescence turning of NaREF4（RE=0.4Y+0.4La+0.2（Yb, Er, Tm））nanoparticles and their applications for detecting Rhodamine B in shrimp
来源期刊：JOURNAL OF RARE EARTHS2017年第2期
论文作者：胡仕刚 余意 吴笑峰 胡盼 曹会祎 吴青杨 唐志军 郭源君 刘云新
文章页码：120 - 126
摘 要：Biocompatible NaREF4（RE=0.4Y+0.4La+0.2（Yb,Er,Tm）（molar ratio）） upconversion nanoparticles（UCNPs） with strong visible fluorescence were synthesized by a solvothermal method and subsequent surface modification. Modulated upconversion luminescence emission spectra were obtained via changing the doping. In vitro and in vivo bioimagings were carried out with shrimps. The upconversion nanoprobes with an acidic/PEG hybrid ligand could quickly capture the basic Rhodamine-B（RB） in shrimp cells and formed a close UCNPs@RB system. The residual organic dye RB in shrimps could be detected on the basis of luminescent resonance energy transfer（LRET）. It could be rapidly addressed based on LRET detection that RB residue existed in the shrimps after incubating in the aqueous solution of RB higher than 3 μg/m L for 12 h.
胡仕刚1，余意1，吴笑峰1，胡盼1，曹会祎1，吴青杨1，唐志军1，郭源君2，刘云新2
1. School of Information and Electrical Engineering, Hunan University of Science and Technology2. Department of Physics and Electronic Science, Hunan University of Science and Technology
摘 要：Biocompatible NaREF4（RE=0.4Y+0.4La+0.2（Yb,Er,Tm）（molar ratio）） upconversion nanoparticles（UCNPs） with strong visible fluorescence were synthesized by a solvothermal method and subsequent surface modification. Modulated upconversion luminescence emission spectra were obtained via changing the doping. In vitro and in vivo bioimagings were carried out with shrimps. The upconversion nanoprobes with an acidic/PEG hybrid ligand could quickly capture the basic Rhodamine-B（RB） in shrimp cells and formed a close UCNPs@RB system. The residual organic dye RB in shrimps could be detected on the basis of luminescent resonance energy transfer（LRET）. It could be rapidly addressed based on LRET detection that RB residue existed in the shrimps after incubating in the aqueous solution of RB higher than 3 μg/m L for 12 h.
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