化学
荧光
海藻酸钠
左氧氟沙星
钠
核化学
立方体(代数)
纳米技术
组合化学
生物化学
有机化学
抗生素
物理
材料科学
数学
量子力学
组合数学
作者
Haiping Yu,Jiazhao Lin,Xiaoping Yang,Chengri Wang,Desmond Schipper,Keqin Yang
标识
DOI:10.1021/acs.inorgchem.4c00690
摘要
A cube-like Zn(II)–Eu(III) nanocluster 1 (molecular sizes: 1.8 × 2.0 × 2.0 nm) was constructed by the use of a new long-chain Schiff base ligand. It shows a ratiometric fluorescence response to levofloxacin (LFX) with high sensitivity and selectivity, which can be expressed as I615 nm/I550 nm = A*[LFX]2 + B*[LFX] + C. It is used to quantitatively detect the LFX concentrations in fetal calf serum (FCS) and tablets sold in pharmacy. Filter paper strips bearing 1 can be used to qualitatively detect LFX by a color change to red under a UV lamp. 1 and its hybrid with sodium alginate (SA), 1@SA, display potential applications in the qualitative detection of LFX in FCS and the medicine. The limit of detection of 1 to LFX is as low as 2.1 × 10–2 nM.
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