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- Title
A dual‐function Cd‐based coordination polymer for the detection of moxifloxacin and SiO<sub>3</sub><sup>2−</sup> ions.
- Authors
Zhu, Shan; Tan, Zhenqi; Pan, Jiajun; Liu, Luyao; Yang, Tao; Zhou, Xinhui; You, Yujian; Xiao, Hongping
- Abstract
A 1D coordination polymer (CP) [Cd2L2(H2O)4] ⋅ 3H2O (1) was prepared by solvothermal method using 1‐(4‐carboxyphenyl)‐1H‐pyrazole‐3‐carboxylic acid (H2L) as single ligand. Fluorescence sensing experiments show that 1 has dual‐function specific recognition ability for moxifloxacin (MXF) and silicate (SiO32−), which can be used as the turn‐off sensing material for their detection. When 1 specifically identifies MXF, the Ksv is as high as 6.46×105 M−1 (6–20 μM) and the limit of detection (LOD) is as low as 14 nM. 1 is the second example of a CP‐based fluorescent probe for the detection of MXF, which has confirmed that the Ksv is the largest to date for the detection of MXF, with a detection sensitivity increase of more than three times. For SiO32− ions detection, the fluorescence intensity ratio has a good linear correlation with the concentration of SiO32− ions in the concentration range of 0–100 μM, with a slope of 1.33×104 M−1, and the LOD is as low as 0.68 μM. According to the reported literature, 1 is the only example of SiO32− ions sensing by CP‐based fluorescence sensor so far. In order to better understand the sensing phenomenon, we also discussed the sensing mechanism for MXF and SiO32− ions.
- Subjects
COORDINATION polymers; MOXIFLOXACIN; IONS; FLUORESCENT probes; DETECTION limit; FLUORESCENCE; CHEMORECEPTORS
- Publication
European Journal of Inorganic Chemistry, 2024, Vol 27, Issue 9, p1
- ISSN
1434-1948
- Publication type
Article
- DOI
10.1002/ejic.202300711