A ratiometric ionic liquids-based micro-optode for instant and specific detection of nerve agent analog

IF 5.3 2区化学 Q1 CHEMISTRY, ANALYTICAL

Microchimica Acta Pub Date : 2025-04-15 DOI:10.1007/s00604-025-07153-6

Najmin Tohora, Sabbir Ahamed, Jyoti Chourasia, Upika Darnal, Subekchha Pradhan, Shraddha Rai, Shubham Lama, Sudhir Kumar Das

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引用次数: 0

Abstract

Designing advanced photofunctional materials within the core of ionic liquids (ILs) has stimulated considerable attention within the scientific communities due to their impactful significance and physicochemical properties such as ionic nature, low melting point, non-volatility, and tunability without hampering their inherent photofunctionality. Herein, we have synthesized a photoluminescent IL, HTIL from 8-hydroxy pyrene-1,3,6-trisulfonic acid trisodium salt [HPTS] and trihexyltetradecylphosphonium chloride ([TTP]Cl) by simple ionic exchange reaction. Water-dispersible IL-based low-dimensional materials referred to as nHTIL were developed by a reprecipitation technique and validated using various spectroscopic and microscopic analyses methods. We have successfully demonstrated that neat HTIL could be used as a solvent-free fluorescent ink and checked its superiority as a security writing tool. A ratiometric cyanish to bluish fluorometric change is observed upon the addition of diethylchlorophosphate (DCP), a sarin mimic in the solution having detection and quantification limits within the µM range. Also, a portable and super handy paper-based test kit experiment has been illustrated and performed verifying DCP detection in the solid phase. A vapor strip–based experiment by nHTIL was conducted to explore the vapor phase detection of DCP. This report presents an innovative way to develop DCP-sensitive IL-based low-dimensional materials exhibiting remarkable properties compared to traditional ones for forensic and environmental monitoring.

Graphical Abstract

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基于比率计量离子液体的微型光电二极管，用于即时特异性检测神经毒剂类似物

在离子液体（ILs）核心中设计先进的光功能材料已经引起了科学界的广泛关注，因为它们具有重要的意义和物理化学性质，如离子性质，低熔点，非挥发性和可调性，而不会妨碍其固有的光功能。本文以8-羟基芘-1,3,6-三磺酸三钠盐[HPTS]和三己基十四烷基氯化磷（[TTP]Cl）为原料，通过简单离子交换反应合成了光致发光的IL - HTIL。水分散的il基低维材料（简称nHTIL）是通过再沉淀技术开发的，并使用各种光谱和微观分析方法进行了验证。我们成功地证明了纯htl可以用作无溶剂荧光墨水，并验证了其作为安全书写工具的优越性。在溶液中加入二乙基氯磷酸（DCP）后，观察到从蓝绿色到蓝色的比例荧光变化，二乙基氯磷酸是一种沙林模拟物，其检测和定量限制在µM范围内。此外，本文还介绍了一种便携式、超便捷的纸质检测试剂盒实验，验证了DCP在固相中的检测效果。基于nHTIL的气相条实验探讨了DCP的气相检测。本报告提出了一种创新的方法来开发dcp敏感的基于il的低维材料，与传统的法医和环境监测材料相比，这些材料具有显着的性能。图形抽象

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Microchimica Acta 化学-分析化学

CiteScore

9.80

自引率

5.30%

发文量

410

审稿时长

2.7 months

期刊介绍： As a peer-reviewed journal for analytical sciences and technologies on the micro- and nanoscale, Microchimica Acta has established itself as a premier forum for truly novel approaches in chemical and biochemical analysis. Coverage includes methods and devices that provide expedient solutions to the most contemporary demands in this area. Examples are point-of-care technologies, wearable (bio)sensors, in-vivo-monitoring, micro/nanomotors and materials based on synthetic biology as well as biomedical imaging and targeting.