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Design of a Sensitive Fluorescent Zn-Based Metal-Organic Framework Sensor for Cimetidine Monitoring in Biological and Pharmaceutical Samples.

ABSTRACT: A new highly fluorescent zinc-organic framework [Zn2(btca)(DMSO)2]n (Zn-MOF) was prepared via in situ ligand formation by the solvothermal reaction of Zn(NO3)2·6H2O and pyromellitic dianhydride (PMDA) in DMSO solvent. During the solvothermal reaction, PMDA was gradually hydrolyzed to a pyromellitic acid, 1,2,4,5-benzene tetracarboxylic acid (H4btca), to provide a tetracarboxylic acid as a linker in the reaction medium. Single-crystal X-ray diffraction analysis exhibits a 3D porous structure with open tetragonal channels running along the crystallographic c-axis. The Zn-MOF was explored as an on-mode fluorescent sensor for tracing cimetidine in biological fluids and pharmaceutical samples in the presence of interfering species. The results show a quick response in a short time range. The characteristics of this sensor were investigated by field-emission scanning electron microscopy, dynamic light scattering, energy-dispersive X-ray analysis, powder X-ray diffraction, Fourier transform infrared and UV-vis spectroscopy as well as thermogravimetric, and elemental analyses.

SUBMITTER: Afravi Z 

PROVIDER: S-EPMC9260946 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature

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Design of a Sensitive Fluorescent Zn-Based Metal-Organic Framework Sensor for Cimetidine Monitoring in Biological and Pharmaceutical Samples.

Afravi Zahra Z   Nobakht Valiollah V   Pourreza Nahid N   Ghomi Matineh M   Trzybiński Damian D   Woźniak Krzysztof K  

ACS omega 20220621 26

A new highly fluorescent zinc-organic framework [Zn<sub>2</sub>(btca)(DMSO)<sub>2</sub>]<sub>n</sub> (<b>Zn-MOF</b>) was prepared via in situ ligand formation by the solvothermal reaction of Zn(NO<sub>3</sub>)<sub>2</sub>·6H<sub>2</sub>O and pyromellitic dianhydride (PMDA) in DMSO solvent. During the solvothermal reaction, PMDA was gradually hydrolyzed to a pyromellitic acid, 1,2,4,5-benzene tetracarboxylic acid (H<sub>4</sub>btca), to provide a tetracarboxylic acid as a linker in the reaction m  ...[more]

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