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Two new Cd(II) MOFs as signal magnifiers for fluorescence detection of levofloxacin
Ist Teil von
Journal of molecular structure, 2022-11, Vol.1267, p.133560, Article 133560
Ort / Verlag
Elsevier B.V
Erscheinungsjahr
2022
Link zum Volltext
Quelle
Elsevier ScienceDirect Journals Complete
Beschreibungen/Notizen
•Two new Cd(II)-MOFs, 1 and 2, based on a new ligand were synthesized and characterized.•1 and 2 are signal magnifiers for fluorescence detection of levofloxacin.•Moreover, 1 and 2 exhibits the merits of great anti-interference ability towards the other analytes.•The sensing mechanisms were discussed.
Based on Cd(II) and the new ligand 1,4-bis(5,6-dimethyl-1-(pyridin-4-ylmethyl)-1H-benzo[d]imidazol-2-yl)butane (L), two Cd(II) metal-organic frameworks with molecular formulae [Cd(L)(TPA)·4H2O]n (1) and [Cd(L)0.5(DCTP)·4H2O]n (2) (H2TPA = terephthalic acid, H2DCTP = 2,5-dichloroterephthalic acid) were synthesized by changing the organic carboxylic acid ligands under hydrothermal conditions. 1 displays a 2D hcb layer, whereas 2 exhibits a 3D mog framework. Both 1 and 2 display highly thermal and chemical stability. 1 and 2 are excellent sensors for the detection of levofloxacin via fluorescence enhancement.
Two new MOFs [Cd(L)(TPA)·4H2O]n (1) and [Cd(L)0.5(DCTP)·4H2O]n (2) were successfully synthesized under hydrothermal conditions. 1 and 2 can be used as signal magnifiers for fluorescence detection of levofloxacin with selectivity and sensitivity. [Display omitted]