Although cyanogen ion (CN⁻) plays important role in industry which also bring acute environmental pollution. More serious, trace CN⁻ enters the human body can cause serious consequences and even death. Therefore, it is of great significance to detect trace CN⁻ with high sensitivity. Herein, a novel aggregation-induced emission (AIE) probe C-BH was synthesized based on coumarin matrix. Probe C-BH showed high selectivity and sensitivity toward CN⁻ by dual channel response due to the excited state intramolecular proton transfer (ESIPT). The low detection limit was calculated to be 0.05 µM. Moreover, probe C-BH was successfully used for imaging CN⁻ in living cells and zebrafish due to its low toxicity and excellent optical properties.

虽然氰离子（CN ^-）在工业中发挥着重要作用，但也带来了严重的环境污染。^{更严重的是，}微量CN-进入人体会造成严重后果，甚至死亡。因此，高灵敏度检测痕量CN ^{-具有重要意义。}在此，基于香豆素基质合成了一种新型聚集诱导发射（AIE）探针C-BH。由于激发态分子内质子转移 (ESIPT)，探针 C-BH 通过双通道响应对 CN ^-显示出高选择性和灵敏度。低检测限计算为 0.05 µM。此外，探针 C-BH 成功用于 CN 成像^-由于其低毒性和优异的光学特性，在活细胞和斑马鱼中。