Fatty-chain-switched cationic fluorescent probe for SCN−, PF6−, and HSO3− recognition in water: Study of anion selectivity and sensitivity
作者:Shaoyuan Su、Ziqi Zheng、Qi-Long Zhang、Xin-Long Ni
DOI:10.1016/j.dyepig.2020.108903
日期:2021.2
In this work, a water-soluble cationic fluorescent probe with AIE features exhibited unique sensing of charge-diffuse anions, namely, SCN−, PF6−, and HSO3− via ionic interactions and the subtle cooperation of the tunable hydrophobicity. The effect of the fatty chain length on the cationic probes indicated that the sensitivity and selectivity of the probes can be rationally improved by switching their
在这项工作中,用一AIE水溶性阳离子荧光探针的特征表现出的电荷扩散阴离子,独特的传感即,SCN -,PF 6 -,HSO和3 -通过离子相互作用和可调疏水性的微妙配合。脂肪链长度对阳离子探针的影响表明,可以通过切换其在水中的聚集趋势(疏水作用)或以荧光化学传感器阵列的形式集成它们,从而合理地提高探针的灵敏度和选择性。SEM图像表明,在阴离子识别触发的探针自组装物中形成了不同的形态,这可归因于不同的阴离子分子几何形状。此外,该SCN的沉淀- -recognition复杂从水性环境提供了一个新见解阴离子的分离。