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- W4384564382 abstract "The extreme toxicity of organophosphates (OPs) nerve agents poses a significant public health risk and national safety. Increasing interest in developing reliable and accurate methods for simple and fast detection of these toxic, i.e., poisonous chemicals, is necessary and urgent. In this contribution, [(E)-3-(4-(dimethylamino)phenyl)allylidene)amino)phenol] (DPAP), a cinnamalimine-based chromogenic probe with high selectivity and sensitivity towards the detection of sarin mimic diethylchlorophosphate (DCP), has been introduced. The detection limit of DPAP towards the detection of DCP is in the nM region. The developed probe DPAP shows reddish pink color upon treatment with DCP and reverses to its original one by adding triethylamine (TEA); it is observed eight times reversibility by alternative addition of DCP and TEA. The detailed mechanism has been elucidated through the density functional theoretical analysis depicting the energy profile diagram and Frontier molecular orbital analysis. To establish the practical application, we have demonstrated a paper strips-based test kit to establish the capacity of DPAP for on-spot detection and quantification of DCP. A dip-stick experiment has also been performed to identify DCP in the gaseous phase within the various OPs, inorganic phosphates, and other toxic analytes to establish the probe, DPAP, as a proficient chemosensor. To detect the response capacity of probe DPAP towards the identification and quantification of DCP, a time-dependent UV–visible spectrophotometric experiment, and dip-stick method have been performed for 0–6 min. A smartphone-based readout technique has been executed for on-spot detection and quantification of DCP in remote areas. The present contribution introduced an excellent probe and technique for identifying and quantifying sarin gas in actual threatening situations. It would be helpful to monitor the environmental toxicology from exposure to these toxic nerve agents." @default.
- W4384564382 created "2023-07-18" @default.
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- W4384564382 date "2023-10-01" @default.
- W4384564382 modified "2023-10-17" @default.
- W4384564382 title "Deciphering the sensing mechanism in a sarin gas surrogate, diethylchlorophosphate specific probe: Colorimetric observation and theoretical analysis" @default.
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- W4384564382 doi "https://doi.org/10.1016/j.microc.2023.109095" @default.
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