A coumarin coupled tetraphenylethylene based multi-targeted AIEgen for cyanide ion and nitro explosive detection, and cellular imaging

Abstract

A coumarin coupled tetraphenylethylene based AIEgen (TPE-Lac) with intense greenish-yellow emission has been synthesized and utilized for multipurpose sensing and imaging applications. TPE-Lac acts as a sensitive sensor for the...

Mechanochemical Duff Reaction in Solid Phase for Easy Access to Mono- and Di-formyl Electron-Rich Arenes

“…However, they are all solution-based chemistry, and no attempts have been made for solid-phase formylation. Notably, TFA has been commonly used as the media for the formylation of various intermediates, which urges the change in practice. − …”

A novel coumarin derivative-modified cellulose fluorescent probe for selective and sensitive detection of CN− in food samples

“…Naik et al synthesized a coumarin coupled tetraphenylethylene based AIEgen (TPE-Lac), which could sensitively detect CN − with an immediate turn-off response. 13 Lakshmi et al developed a bisimidazole ensemble with a fluorescent probe and prepared a test strip for the sensitive monitoring of CN − . 14 Gao et al utilized 4-(dimethylamino)cinnamaldehyde and diketone difluoroboron with a Knoevenagel reaction to design a new fluorescent probe for the detection of CN − .…”

Stable lanthanide metal–organic frameworks as ratiometric fluorescent probes for the efficient detection of riboflavin

“…By contrast, the fluorescence technique shows great potential for achieving accurate and efficient detection due to its reliability, simplicity and significant sensitivity. 10,11 Indeed, well-designed luminescent materials (i.e., carbon quantum dots 12,13 and ZnS 14 ) that act as single-wave-intensity modulation mechanism probes (i.e., fluorescence enhancement or quenching, turn-on or turn-off modes) have achieved great success in the field of fluorescence detection for ionic species, 15,16 small molecules, 17,18 nitro explosives, 19,20 and others. However, in terms of RF detection, especially in actual blood or food samples, interfering substances can seriously affect the accuracy of the test results due to the difficulty of decoupling the quenching/ enhancement contributions from the detected RF and the other components in the complex sample.…”