A fluorescent detection pen for sensitive, specific, and real-time detection of phosgene based on a novel rhodamine probe

Fluorescent dyes based on rhodamine derivatives for bioimaging and therapeutics: recent progress, challenges, and prospects

“…44). 294 Because the molecule is in a closed-loop state, the probe exhibited almost no fluorescence. However, after exposure to phosgene, the nucleophilic reaction between the probe and phosgene resulted in the opening of the ring and an 8000-time enhancement in the fluorescence at 584 nm ( λ ex = 560 nm).…”

Reactivity-based amino-1,8-naphthalimide fluorescent chemosensors for the detection and monitoring of phosgene

“…22,23 Over the past few years, researchers have made tremendous progress in the development of fluorescent chemosensors for detecting phosgene. 1,2 Until recently, several chemosensors based on classic fluorophores, such as like coumarins, 24 BODIPY, [25][26][27][28] naphthalimides, [29][30][31][32] and rhodamines, 33,34 were reported. These fluorescence probes were normally functionalized with various nucleophilic functional groups, such as amino, hydroxyl, and sulfhydryl, that act as recognition, or reaction sites, for phosgene detection.…”