The first specific probe for pyrrolidine with multifunction by the interaction mechanism of atomic economic reaction.

Pyrrolidine (PyD) has an important impact on the environment and human health. However, there is currently no method for trace detection of PyD. Here, we successfully designed diaminomethylene-4H-pyran (1) as the first specific fluorescent probe for PyD.

Fluorinated benzothiadiazole fluorescent probe based on ICT mechanism for highly selectivity and sensitive detection of fluoride ion.

Excessive fluoride ion (F) in the environment can affect health and even endanger life when ingested by the human body. However, most fluoride probes have the disadvantages of low sensitivity and long detection time. Herein, fluorescent probe 3a is successfully synthesized by linking two acetylenyltrimethylsilyl groups at both ends of the fluorinated benzothiadiazole core.

Regulating donor-acceptor system toward highly efficient dual-state emission for sensitive response of nitroaromatic explosives.

Dual-state emission luminogens (DSEgens) as fluorophores emit efficiently in solution and solid forms have gained increasing concern in the field of chemical sensing. Recent efforts by our group led to the identification of DSEgens as an easy-to-visualize nitroaromatic explosives (NAEs) detection platform. However, none of the previously studied NAEs probes show effective improvement in sensitivity.

-alkylation briefly constructs tunable multifunctional sensor materials: Multianalyte detection and reversible adsorption.

A series of -alkyl-substituted polybenzimidazoles (), synthesized by simple condensation and -alkylation, act as functional materials with tunable microstructures and sensing performance. For their controllable morphologies, the formation of nano-/microspheres is observed at the (RBr)/(PBI) feed ratio of 5:1. Products with different degrees of alkylation can recognize metal ions and nitroaromatic compounds (NACs).

Preparation of Large Conjugated Polybenzimidazole Fluorescent Materials and Their Application in Metal Ion Detection.

A new type of conjugated polybenzimidazole () was synthesized through a simple polycondensation reaction without metal catalysis, and -alkylation modification was carried out to solve the problems of solubility and fluorescence properties. A series of nano-microsphere polymers with large conjugation, good solubility, and strong fluorescence has been successfully used as "turn-off" fluorescent probes for the first time. The results show that, under suitable -alkylation conditions, the obtained can be used as a highly sensitive and selective fluorescent probe for the detection of Cu and Zn at the same time, and their detection limits are both nM levels.

Controllable preparation and performance of bio-based poly(lactic acid-iminodiacetic acid) as sustained-release Pb chelating agent.

The bio-based lactic acid (LA) and the common metal ion chelating agent iminodiacetic acid (IDA) are used to design and prepare a polymeric sustained-release Pb chelating agent by a brief one-step reaction. After the analysis on theoretical calculation for this reaction, poly(lactic acid-iminodiacetic acid) [P(LA--IDA)] with different monomer molar feed ratios is synthesized via direct melt polycondensation. P(LA--IDA) mainly has star-shaped structure, and some of them have two-core or three-core structure.