A Turn‐on Fluorescence Probe For Rapid, Sensitive And Visual Detection of Formaldehyde

Abstract

The sensitive and selective determination of formaldehyde is very significant in food safety and environmental protection. In this paper, a novel perylenediimide based fluorescent probe for formaldehyde has been constructed. The probe can be used to detect formaldehyde rapidly, facilely and sensitively, and it exhibited an obvious fluorescence enhancement (at 582 nm) within 1 minutes, and the enhanced yellow fluorescence can be easily observed by the naked eyes. Importantly, the probe showed strong anti-interference abilities to protons and other small molecules. Moreover, the density functional theory was performed to understand the Turn-On process and the probe was successfully used to detect formaldehyde in living cells.

Reaction-based fluorescent and chemiluminescent probes for formaldehyde detection and imaging

“…Utilizing the excellent optical properties of perylenebisimide ( 76), 1,8naphthalimide (77-84) and other fluorophores (85-86), a number of researchers have constructed reaction-based FA probes based on hydrazide, which could form the imine group with FA and release the fluorescence. [100][101][102][103][104][105][106][107] Notably, probe 85 has been successfully blended with a host polymer polyvinyl alcohol and produced nanofiber form by electrospinning (Fig. 16).…”

Fluorescence Probe Based on Graphene Quantum Dots for Selective, Sensitive and Visualized Detection of Formaldehyde in Food

“…Specifically, reactive fluorescent probes have been developed [7][8][9]. The detection reaction mainly includes the reaction of amino (-NH 2 ) [10][11][12] or hydrazine (-NH-NH 2 ) [13,14] with formaldehyde and the aza-Cope rearrangement reaction [15][16][17][18]. However, since most of the reaction molecules cannot be directly dissolved in pure water, the reactions are carried out in non-neutral aqueous solutions or organic solvents [19][20][21].…”

Tailoring the Porous Structure of Mono‐dispersed Hierarchically Nitrogen‐doped Carbon Spheres for Highly Efficient Oxygen Reduction Reaction

“…Therefore, it has become an urgent task to develop low‐cost cathode materials with improved mass transfer structure and catalytic activity as cathode alternatives of noble catalysts. [ 6–8 ]…”