Organochalcogen substituted dimesityl borane-imidazoles as fluorogenic fluoride and cyanide sensors in aqueous media

Abstract

The natural and anthropogenic activities leading to excessive toxic biological anions in water have warranted developing anions sensors, especially for cyanide and fluoride ions in aqueous media. Herein, a contemporary...

Ultrasensitive Monitoring of Cyanide Concentrations in Water Using a Aucore–Agshell Hybrid-Coating-Based Fiber Optical Sensor

“…Simultaneously, Au and Ag are known to be low-toxic and highly biocompatible metals, so this sensor is more user-friendly than optical sensors based on fluorescence switching. Sensors developed in recent years for CN – detection are mainly based on fluorescence on/off thanks to advantages such as high sensitivity, selectivity, and quick response. − However, the challenge of this method is choosing a luminous material and setting the procedures for monitoring changes in the fluorescence spectrum. Most organic fluorophores are toxic and are only soluble in organic solvents, thus causing limitations in the manufacturing process and practical applications .…”

“…The sensing process that relied on chemical reduction is quick and simple and required no additional cyanide identifiers or labels. Moreover, Au and Ag are known to be low-toxicity, highly biocompatible, and thus user-friendly compared to the sensors based on fluorescence quenching: The sensors developed in recent years for high sensitivity CN – detection that were mainly based on fluorescence on/off switching. − faced challenge of inevitable use of organic solvent for given organic fluorophores. This aspect caused limitation in easy manufacturing process and environment-friendly practical applications .…”