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One High-Nuclearity Cd(II)–Yb(III) Nanoring with Near-IR Luminescent Sensing to Antibiotics
Inorganic Chemistry ( IF 4.3 ) Pub Date : 2020-11-22 , DOI: 10.1021/acs.inorgchem.0c02567
Yanan Ma 1 , Xiaoping Yang 1 , Dongliang Shi 1 , Mengyu Niu 1 , Desmond Schipper 2
Affiliation  

One 12-metal Cd(II)–Yb(III) nanoring, [Cd8Yb4L8(OAc)8]·4OH (1), with a size of 1.2 × 2.8 × 2.8 nm was obtained from a designed flexible salen-type ligand that has eight coordination sites (O and N atoms). The near-IR emission of Yb(III) at 983 nm was detected upon the excitation of ligand-central absorption at 386 nm. This Cd(II)–Yb(III) nanoring exhibits high sensitivity to nitrofuran antibiotics (NFAs) even in the presence of other antibiotics. The quenching constants and limits of detection of NFAs are 2.5 × 104–4.5 × 104 M–1 and 1.5–2.8 μM, respectively.

中文翻译:

一种具有近红外发光抗菌素的高核Cd(II)-Yb(III)纳米环

从设计的柔性Salen中得到了一个12金属的Cd(II)-Yb(III)纳米环[Cd 8 Yb 4 L 8(OAc)8 ]·4OH(1),尺寸为1.2×2.8×2.8 nm。型配体,具有八个配位点(O和N原子)。激发386nm处的配体中心吸收后,检测到983nm处Yb(III)的近红外发射。即使存在其他抗生素,这种Cd(II)–Yb(III)纳米环对硝基呋喃抗生素(NFA)也显示出高敏感性。NFA的猝灭常数和检出限分别为2.5×10 4 –4.5×10 4 M –1和1.5–2.8μM。
更新日期:2020-12-07
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