Luminescent porous metal–organic gels for efficient adsorption and sensitive detection of chlortetracycline hydrochloride assisted by smartphones and a test paper-based analytical device

Abstract

Developing dual functional materials for chlortetracycline hydrochloride (CTC) adsorption and detection is of great importance for wastewater treatment and pollution monitoring. Herein, three novel (Fe-Tb) JLUE-MOGs are synthesized through the...

Construction of CuO/Fe2O3 Nanozymes for Intelligent Detection of Glufosinate and Chlortetracycline Hydrochloride

“…The linear relationship obtained for the detection of glufosinate was Y = 1.14027–0.000923 X , and the limit of detection (LOD) based on 3σ/b was 28 μM (σ: standard deviation of the blank signal; b: slope of the regression line) (Figure C). Compared with the previously reported glufosinate assay in Table S4, CuO/Fe 2 O 3 presented a wider range of detection. , In addition, the colorimetric detection of CTC by nanozymes was rarely reported. , The color of the solution was obviously changed after the addition of CTC, and the absorbance at 652 nm was also obviously increased. Moreover, the CTC linear relationship was Y = 0.64184 + 0.03725 X (1–10 μM), and the LOD was 0.69 μM based on 3σ/b (Figure D,E).…”

“…As effective drugs for challenging microbial populations, antibiotics have been widely used for preventing and treating infections of animals and plants . Chlortetracycline hydrochloride (CTC), one of the representative antibiotics, has aroused tremendous attention because of its negative effects on human and livestock health and aquatic ecosystems. , Therefore, it is particularly important to prepare portable detection sensors for pesticide residues and antibiotics to protect the environment. Nanozyme, a term defined for a nanomaterial with natural enzyme activity, is being developed for biosensing and environmental protection.…”

“…42,43 In addition, the colorimetric detection of CTC by nanozymes was rarely reported. 5,44 The color of the solution was obviously changed after the addition of CTC, and the absorbance at 652 nm was also obviously increased. Moreover, the CTC linear relationship was Y = 0.64184 + 0.03725X (1−10 μM), and the LOD was 0.69 μM based on 3σ/b (Figure 5D,E).…”

A 5.3 nm giant metal–organic cage and its supramolecular gel for the formation of dye molecular ionic pairs

“…Supramolecular metal-organic gels (MOGs) possessing hierarchical pore structures for mass transfer, high internal surface areas, and high mechanical/thermal stability and showed great potential application in the field of adsorption, separation and purification. [36][37][38][39][40] Meanwhile, according to our previous work, the metal-organic gels of giant terpyridinebased supramolecular architectures were prone to form. 41 On this basis, we expected that the gel formed from S would improve the adsorption performance for dye molecules.…”

An Encyclopedic Compendium on Chemosensing Supramolecular Metal‐Organic Gels

“…(FeÀ Tb) metallogel (JLUE-MOG) was synthesized solvothermally, resulted in materials with hierarchical porous structures, large surface areas, and abundant active sites. [191] Using the adsorption capability of MOGs for the removal of CTC is highly effective, with mechanisms involving electrostatic or π-π electron donor-acceptor (EDA) interactions, hydrogen bonding, along with water affinity, and pore filling. Moreover, the fluorescence of JLUE-MOG exhibited quenching upon CTC adsorption, with a low detection limit of 0.079.…”