AIE-doped Poly(Ionic Liquid) Photonic Spheres for the Discrimination of Psychoactive Substances

作者：Liu, Chengcheng; Li, Wenyun; Zhang, Wanlin; Zhao, Hongwei; He, Guokang; Li, Chi; Wang, Chen^*; Li, Guangtao^*

来源：Chemistry - A European Journal, 2023, 29(19).

DOI：10.1002/chem.202203616

• aggregation-induced emission
• photonic crystal
• poly(ionic liquid)
• psychoactive substance
• sensor array

Drugs of abuse has drawn intense attention due to increasing concerns to public health and safety. The construction of a sensing platform with the capability to identify them remains a big challenge because of the limitations of synthetic complexity, sensing scope and receptor extendibility. Here a kind of poly(ionic liquid) (PIL) photonic crystal spheres doped with aggregation-induced emission (AIE) luminogens was developed. As diverse noncovalent interactions involve in PIL moieties, the single sphere shows different binding affinity to a broad range of psychoactive substances. Furthermore, the dual-channel signals arising from photonic crystal structures and sensitive AIE-luminogens provide high-dimensional information for discriminative detection of targets, even for molecules with slight structural differences. More importantly, such single sphere sensing platform could be flexibly customized through ion-exchange, showing great extendibility to fabricate high-efficiency/high-throughput sensing arrays without tedious synthesis.

• 单位
  北京大学; 清华大学