Journal
ANALYTICAL CHEMISTRY
Volume -, Issue -, Pages -Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.analchem.2c03335
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Funding
- Top-notch Talents Program of Henan Agricultural University [30501032, 30500418, 30500739]
- NNSFC [22001059, U20041101]
- Natural Science Foundation of Henan Province [222300420188]
- Key Scientific Research Projects in Henan Colleges and Universities [21A150021]
- Youth Innovation Team Project for Talent Introduction and Cultivation in Universities of Shandong Province
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A novel near-infrared fluorescent probe was developed for the reversible detection of sulfur dioxide derivatives and formaldehyde. The probe exhibited excellent selectivity and could achieve rapid recovery under UV light.
A novel near-infrared (NIR) fluorescent Probe 1 was successfully developed for the reversible detection of sulfur dioxide derivatives and formaldehyde. The purple solution of Probe 1 faded to colorless in 1.8 s with the addition of HSO3-. Meanwhile, its fluorescence signal disappeared instantaneously with a 39 nM detection limit. The probe exhibited excellent selectivity toward HSO3- over other potential interfering agents. Then, its absorption and fluorescence bands were able to effectively recover in response to formaldehyde. Remarkably, this reverse process was able to accelerate 84 times under UV light in 122 s and achieved a recovery rate of 98% by UV light, the photoactivation mechanism was fully determined by HRMS and theoretical calculation. Furthermore, we demonstrated that Probe 1 was successfully applied for the detection of sulfur dioxide derivatives and formaldehyde in living cells and data encryption.
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