A novel and simple fluorescent chemical sensor SX based on AIE for relay recognition of Zn2+ and Cu2+ in aqueous system and analysis in logic gates

A benzimidazole-derived fluorescent chemosensor for Cu(ii)-selective turn-off and Zn(ii)-selective ratiometric turn-on detection in aqueous solutions

“…However, it was also noted that the imbalance of Zn 2+ and Cu 2+ concentrations could lead to various diseases, such as metabolic disorders, Parkinson's disease, coronary heart disease, etc. [7][8][9][10]. Hence, it is of great significance to develop highly selective and sensitive fluorescent chemosensor to quantitatively detect Cu 2+ and Zn 2+ in biological and environmental fields.…”

“…Hence, it is of great significance to develop highly selective and sensitive fluorescent chemosensor to quantitatively detect Cu 2+ and Zn 2+ in biological and environmental fields. In this regard, fluorescent sensors for Cu 2+ and Zn 2+ detection have been designed based on various coordination scaffolds [9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27]. For example, a naphthalene Schiff-base has been designed as a fluorescent sensor for Cu 2+ and Zn 2+ , where the fluorecence of sensor was quenched by Cu 2+ or enhanced by Zn 2+ over other metal cations in DMSO, respectively [11].…”

“…5,6 However, it has also been noted that an imbalance of Zn 2+ and Cu 2+ concentrations can lead to various diseases, such as metabolic disorders, Parkinson's disease, and coronary heart disease. [7][8][9][10] Hence, it would be of great significance to develop a highly selective and sensitive fluorescent chemosensor to quantitatively detect Cu 2+ and Zn 2+ in biological and environmental fields. In this regard, a number of fluorescent sensors for Cu 2+ and Zn 2+ detection have been designed based on various coordination scaffolds.…”

“…In this regard, a number of fluorescent sensors for Cu 2+ and Zn 2+ detection have been designed based on various coordination scaffolds. [9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27] For example, a naphthalene Schiff-base system was designed as a fluorescent sensor for Cu 2+ and Zn 2+ , where the fluorescence of the sensor was quenched by Cu 2+ or enhanced by Zn 2+ over other metal cations in DMSO, respectively. 11 Kim et al reported a phenanthrene-based multifunctional chemosensor that showed a slightly enhanced and blue-shifted (45 nm) fluorescence emission in the presence of Zn 2+ , whereas Cu 2+ caused a serious quenching of the original fluorescence.…”

Aggregation‐induced Emission Materials for High‐efficiency Perovskite Solar Cells

“…Such AIE phenomenon was due to the restricted intramolecular rotations of the peripheral phenyl rings against the central silole core, was exactly opposite to the ACQ effect discussed above, which hindered the nonradiative channel via the rotational energy relaxation processes and effectively populate the radiative decay of the excitons. [26,27] Benefiting from the AIE character, the AIE materials are widely applied in chemical sensors, [28,29] bioimaging, [30] biological probes, [31,32] OLED devices [33] and perovskite solar cell field, etc. Herein, we retrospect the recent progress in using AIE molecules to achieve high-performance PSCs.…”