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Ratiometric fluorescent detection of dipicolinic acid as an anthrax biomarker based on a high-nuclearity Yb18 nanoring
Dalton Transactions ( IF 3.5 ) Pub Date : 2021-08-25 , DOI: 10.1039/d1dt01731d
Yanan Ma 1 , Xiaoping Yang 1 , Wenxin Hao 1 , Ting Zhu 1 , Chengri Wang 1 , Desmond Schipper 2
Affiliation  

An 18-metal lanthanide nanoring [Yb18(L1)8(HL2)2(OAc)20(MeOH)8(EtOH)6(H2O)4] (1), which shows a ratiometric fluorescent response to DPA, was constructed through the strategy of using two types of polydentate organic ligands. The addition of DPA increases the visible ligand-centered emission, but decreases the NIR lanthanide luminescence of 1. The limit of luminescent detection of 1 for DPA is 1.5 μM. The high fluorescence sensitivity of 1 to DPA is not affected by the existence of interferents such as aromatic carboxylates and ions.

中文翻译:

基于高核Yb18纳米环的吡啶二羧酸作为炭疽生物标志物的比率荧光检测

18 金属镧系元素纳米环 [Yb 18 (L 1 ) 8 (HL 2 ) 2 (OAc) 20 (MeOH) 8 (EtOH) 6 (H 2 O) 4 ] ( 1 ),显示对 DPA 的比率荧光响应, 是通过使用两种多齿有机配体的策略构建的。DPA 的添加增加了可见的以配体为中心的发射,但降低了1的 NIR 镧系元素发光。DPA的发光检测限为1为 1.5 μM。1的高荧光灵敏度DPA 不受芳族羧酸盐和离子等干扰物存在的影响。
更新日期:2021-09-09
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