A sensitive and selective BINOL based ratiometric fluorescence sensor for the detection of cyanide ions

Abstract

A highly selective, novel BINOL based sensor BBCN has been developed for the fluorescent ratiometric detection of cyanide ions (CN−).

Molecular interaction-based fluorescence sensing technologies and their application

“…This kind of ICT-based probe could detect the fluoride ion in practical toothpaste samples efficiently. Further, Munusamy et al [15] designed a fluorescent probe called BBCN to detect the cyanide ions. The probe could be applied to perform ratiometric detection.…”

A benzothiazole-based new fluorogenic chemosensor for the detection of CN− and its real-time application in environmental water samples and living cells

“…Moreover, the biological toxicity levels of ZnS QDs were characterised by UVvisible absorption and uorescence emission spectrum. 75 With our interest in CN À recognition, 34,62,63 in this work, we employ benzothiazole as a uorophore to develop and manufacture a turn-on cyanide uorescence probe based on the nucleophilic addition process. A benzothiazole unit was introduced because of its rigid and planar shape and exceptional photophysical characteristics.…”

“…Due to the increased popularity of uorescent CN À sensors, which benet from excellent selectivity, fast reaction time, and less complex sample preparation, these sensors have advanced signicantly in the past several years. [24][25][26][27][28][29][30][31][32][33][34][35][36][37] The reported cyanide uorescence sensors involved the following mechanistic concepts: coordination, hydrogen bonding interaction, anion-metal affinity, nucleophilic addition reactions, and based on nanotechnology. 32,[38][39][40][41][42][43][44][45][46][47][48][49][50][51][52] Hydrogen bonding, anion metal affinity, and coordination sensors all have signicant drawbacks, including a lack of selectivity and interference from competing analytes such as uoride, phosphate, and acetate ions.…”

Zinc ion detection using a benzothiazole-based highly selective fluorescence “turn-on” chemosensor and its real-time application

“…As part of our research interest in ion recognition, [59][60][61][62][63] in this work, we utilize benzothiazole-linked imidazole as a uorophore to design and construct a "turn-on" Zn 2+ uorescence probe. The structure of the synthesized probe forms an excellent conjugated system through benzothiazole and imidazole pyridine and results in a strong photon-induced electron transfer (PET) action, which interferes with the probe's uorescence emission.…”