Preparation and application of a highly sensitive conjugated polymer-copper (Ⅱ) composite fluorescent sensor for detecting hydrazine in aqueous solution

Research Progress of Organic Polymer Fluorescence Sensor

“…1.1 基于金属偶联反应合成的有机聚合物荧光传感器 利用两种双官能团化合物在过渡金属催化下发生 的偶联聚合反应, 是构成有机聚合物荧光传感分子框架 的重要方法 [16] . 其中, Sonogashira 反应是常用于构建有 机 聚 合 物 荧 光 传 感 器 的 金 属 偶 联 反 应 之 一 [17] . Sonogashira 反应是在钯配合物催化下卤代芳烃或卤代烯 烃与末端炔烃的交叉偶联反应, 常用于合成潜在药物分 子 [18][19] 和有机荧光聚合物 [20] 等.…”

A covalent organic polymer for turn-on fluorescence sensing of hydrazine

“…There are some polymer-based fluorescent sensors for hydrazine. [25][26][27][28][29] For example, in 2006, Swager and coworkers innovatively presented an amplified turn-on sensory scheme for hydrazine vapor using fluorescent conjugated polymers based on poly(phenylene ethynylene)s. 26 In 2013, Tang's group developed a conjugated polymer containing the ynone structure for the detection of hydrazine, in which the ynone unit can react with hydrazine to change its electronic properties and emission behavior, and realize the sensing of hydrazine. 25 In 2019, Rasheed et al developed an alternating copolymer-based vesicle sensor polyethylene glycol diglycidyle ether-alt-dimercaptosuccinic acid grafted with rhodol (PEGDG-a-DMSA-g-RL) for the selective, sensitive and visual detection of hydrazine.…”

“…27 In 2020, Feng and coworkers reported a highly sensitive conjugated polymercopper(II) composite fluorescent sensor for detecting hydrazine in aqueous solutions with a detection limit of 0.54 nM, and a linear range of 0-0.07 mM. 28 In addition, Rasheed et al reported a polymersome-based sensor for the visual detection and quantification of hydrazine in water with a limit of detection value of 2 nM, and a linear range of 0-12 mM. 29 Currently, although some fluorescent sensors based on polymers for hydrazine detection have been developed and achieved attractive progress, it is still necessary to further optimize the sensing performance and explore the detection mechanism.…”

A poly(carbazole‐alt‐fluorene) π‐conjugated polymer bearing thiophenyl benzimidazole: synthesis, characterization and fluorescence recognition of metal ions and cysteine

“…This phenomenon will lead to a change of the fluorescence properties of the probe itself, which will realize the specific recognition of the analyte. This kind of detection system has achieved the detection of anions, 19 hydrazine, 20 hydrogen peroxide, 18 glucose 21 and adenosine diphosphate 22 …”