Multi-color fluorescence sensing platform for visual determination of norfloxacin based on a terbium (Ш) functionalized covalent organic framework

Fluorescent covalent organic frameworks for environmental pollutant detection sensors and enrichment sorbents: a mini-review

“…Since COFs were rst reported in 2005, they have attracted much attention as a new star in the polymeric porous organic material community. Compared with traditional porous organic materials, in addition to the characteristics of stable chemical properties, high specic surface area and ordered pore structure, the biggest advantage of COFs lies in the highly tunable and easy functionalization, which can be synthesized by structural design followed by modication of modied COFs, 85,86 COF-metal composites, 87,88 COF-MIP composites, 89,90 COF membranes, [91][92][93] and COF-composite hydrogel materials, 94,95 which give more functions to common COFs (e.g., dualemission ratio uorescence detection, 19,96 visualization detection, 16,39,97 and RGB analysis 54,98 ). These different forms of COFs are suitable for the applications in different application areas (Fig.…”

Machine Learning-Assisted High-Throughput Strategy for Real-Time Detection of Spermine Using a Triple-Emission Ratiometric Probe

“…Biogenic amines (BAs) are nitrogenous organic compounds with low molecular weight and biological activity, which can be used as representative markers of food spoilage. , Spermine is an important kind of endogenous biogenic amine, which is not only a marker of food deterioration but also a biomarker of cancers. − The excessive intake of spermine poses serious health threats to human beings, including breathing problems, irregular blood pressure, headache symptoms, and even cancers. − Traditional detection techniques of biogenic amines include electrochemical sensing, colorimetric sensing, capillary electrophoresis, and mass spectrometry . Nevertheless, the majority of these techniques are costly, time-consuming, and well-equipped. , The optical detection of spermine mainly focuses on cuvette-based dual-emission mode development. , Therefore, the development of a high-throughput and portable sensing strategy for on-site spermine detection is still limited.…”

“…36 Nevertheless, the majority of these techniques are costly, timeconsuming, and well-equipped. 37,38 The optical detection of spermine mainly focuses on cuvette-based dual-emission mode development. 39,40 Therefore, the development of a highthroughput and portable sensing strategy for on-site spermine detection is still limited.…”

Y3+@CdTe quantum dot nanoprobe as a fluorescence signal enhancement sensing platform for the visualization of norfloxacin

“…Lanthanide ions (Ln 3+ ) with excellent luminescence properties (especially Tb 3+ and Eu 3+ ), due to their ability to chelate β-diketone molecules in antibiotics and sensitise luminescence through the “antenna effect”, have been used for fluorescence sensing of FQs. 13,14 According to the current study, most ratiometric fluorescence sensors are constructed by the fluorescence enhancement of Tb 3+ stimulated by the probe's fluorescence and the NOR-induced antenna effect. 15 However, this strategy ignores the interference of the NOR fluorescence signal in the sensing system.…”