In this study, a pyrene-based fluorescent probe (PCPA) was designed, synthesized and developed for the detection of HA. In the presence of HA, PCPA was converted to the oxime derivative (PCO) through a nucleophilic addition–elimination reaction, accompanied by significant enhancement in fluorescence at 408/425 nm. Further investigations showed that PCPA displayed high sensitivity (LOD = 0.017 µM, λex = 365 nm) within 20 min and high selectivity over other analytes. Moreover, PCPA was capable of recognizing HA in environmental water samples and showed a recovery rate of 95–104% and relative standard deviations (RSD) of 0.56–2.59%. Portable PCPA-loaded paper-based test strips were facilely prepared, which enabled the on-site detection of HA with the aid of a smartphone. These results are expected to make PCPA a potential alternative for HA detection in the field of environmental monitoring.
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
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
This work provides a superior Pd0-specific detection tool, solving the problem of valence state discrimination and compatibility with biological applications, and opens up new avenues for the design of coumarin-based Pd0 probes and their application in environmental safety assessment and life science research.
Lin Cai, Ming-Hui Yan, Zhuo-Yuan Pan et al.· Analytical Methods· 0 citations
Per- and polyfluoroalkyl substances (PFASs), as a class of persistent organic pollutants, pose a great risk to the ecological environment and human health. The development of rapid and accurate assays for PFASs detection is therefore critically important, yet remains challenging. In this work, we designed a fluoresce...
Han-Yi Du, Shu-Xia Zhang, Da-Cheng Hao et al.· Analytical Chemistry· 0 citations
Hydrazine (N2H4) is a highly toxic pollutant and potential carcinogen, demanding sensitive, rapid, and field-deployable detection methods for environmental and food safety monitoring. Herein, we rationally designed a twisted intramolecular charge transfer (TICT)-based fluorescent probe PS featuring a phenothiazine scaf...
Li-Min Liang, Tao Wang, Hai Ren et al.· Spectrochimica Acta Part A -...· 0 citations
Mercury ions (Hg2+) are highly toxic and persistent heavy metal pollutants that pose serious threats to environmental systems and human health. Therefore, developing sensitive and selective detection strategies for Hg2+ is of great significance. In this study, a rhodamine-based dual-mode fluorescent probe (RB-HG) was d...
Zhao-Lan Liu, Xiao-Qin Wang, Lan-Fang Xiao et al.· Methods and Applications in...· 0 citations
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