Aug 2026· Spectrochimica Acta Part A - Molecular and Biomolecular Spectroscopy· Vol 364 Pt 1, pp.
128575
· 2 citations· 57 references
Medicine
Abstract
This study introduces MYT, a novel bifunctional fluorescent probe engineered within a single molecular architecture to concurrently detect bisulfite/sulfur dioxide (HSO3-/SO2) species and measure local viscosity. The probe exhibits an ultrafast response to bisulfite, reaching signal stability within a mere 10 s. Through two well-resolved emission channels, MYT enables the efficient and precise quantification of both HSO3-/SO2 and viscosity. The sensor demonstrates outstanding analytical capability for HSO3-/SO2, featuring a remarkably low limit of detection of 0.182 μM. Live-cell imaging studies confirm MYT's capacity to monitor viscosity alterations in living organisms, specifically in zebrafish. Furthermore, the probe allows for detailed visualization of HSO3-/SO2 fluctuations within rice root tissues. Its practical utility was further established by successfully quantifying HSO3-/SO2 levels in food and water specimens, with recovery rates spanning 92.9% to 107.6%. This underscores the probe's excellent tolerance to complex matrices and its significant potential for environmental monitoring and biological applications.
This study presents a dual-detection fluorescent probe MCC-DMQ toward both bisulfite and viscosity by strategically conjugating quinolinium salt as an electronic acceptor and 6-methoxychromene as an electronic donor linked through an exocyclic ethylene bridge to form the typical D-π-A conjugated system. The ethylene br...
Xin-Yu Hou, Yun-He Jiang, Tian-Yu Liang et al.· Spectrochimica Acta Part A -...· 0 citations
Bisulfite (HSO3−) is widely used as a preservative and antioxidant in the food industry and chemical manufacturing, yet its excessive residues pose risks to food quality, environmental safety, and human health. To achieve rapid, selective, and quantitative detection of HSO3−, a ratiometric fluorescent probe based on a...
Chunling Zhou, Yanxin Zhang, Ying Sun et al.· Methods and Applications in...· 0 citations
Hypochlorite (ClO-) is a highly reactive oxidant involved in biological processes and residential settings, motivating the development of rapid and quantitative sensing tools. Here we report a ratiometric fluorescent probe DEXC for specific detection of ClO- by incorporating an aldehyde recognition unit onto a xanthene...
Yang Yang, Xiao-Ying Bao, Yong-Qi Zhang et al.· Analytical Methods· 0 citations
Due to the role of formaldehyde (FA) in environmental pollutants and as an important intracellular signaling molecule, there is a pressing need to come up with highly sensitive and selective detection methods that can be applied to diverse fields. In this case, we have rationally developed and synthesized a new naphtha...
Zheng Li, Xi-Hao Wu, Xiao-Nan Wang et al.· Talanta: The International J...· 0 citations
XM-CE is established as a robust analytical tool for mapping tissue-specific expression and monitoring enzyme regulation in vivo, offering significant potential for advancing biomedical research and clinical diagnostics.
A novel fluorescent probe
PSH
was developed for the specific detection of biothiols, using phthalimide as the fluorophore and the 2,4‐dinitrobenzenesulfonyl (DNBS) group as the recognition moiety. The DNBS group causes fluorescence quenching of
PSH
, while biothiols trigger a nucleophilic substitution reaction...
Xiao-Dong Zhang· ChemistrySelect· 0 citations
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