| 基于DCI的近红外探针和微信小程序的便携式荧光传感平台用于ONOO- 的分析检测 |
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| 基金项目:国家自然科学基金（201012037，21908140）；陕西省教育厅项目（22JY014） |
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| 中文摘要:该研究设计并合成了一种基于吡喃腈类（DCI）荧光衍生物的近红外探针1a用于特异性检测ONOO-。该探针本身具有橙色荧光，经ONOO- 刺激后，探针的苯硼酸频哪醇酯结构脱落，母体分子的内电荷转移（ICT）效应恢复，使得荧光发射增强，荧光颜色由橙色变为红色。此外，探针1a具有良好的选择性和抗干扰能力，检出限低至97 nmol/L。同时，通过自主开发的微信小程序“色度采集（Colorimetric acquisition）”配合探针1a评估色度与ONOO- 浓度的相关性，搭建了可对外源性ONOO- 检测效果进行智能评估的简易检测平台，该检测平台有望成为便携智能检测环境中有害物质的简易分析工具。该文利用近红外染料开发的探针1a可用于ONOO- 的检测，为智能化检测有害物质提供了新的参考。 |
| 中文关键词:荧光探针 近红外 ONOO- 检测 微信小程序 智能评估 |
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| Detection of ONOO- Using a Portable Fluorescence Sensing Platform Based on Pyronitrile Near-infrared Probe and WeChat Applet |
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| Abstract:A portable fluorescence sensing platform based on pyronitrile（DCI） near-infrared probe 1a and WeChat applet was constructed for the detection of ONOO-．The near-infrared probe 1a was firstly designed and synthesized based on a DCI fluorescent derivative，which was used for specific detection of ONOO-．The probe itself possess orange fluorescence，and the probe’s phenylboronic acid pinacol ester structure sheds after stimulation with nitrite ONOO-，then the parent intramolecular charge transfer（ICT） effect is restored，resulting in enhanced fluorescence emission and a color change of the probe’s fluorescence from orange to red after activation. Meanwhile，probe 1a exhibited excellent selectivity and anti-interference ability，the ultra-low detection limit reached 97 nmol/L．In addition，a simple detection platform based on a WeChat mini program “Colorimetric acquisition” was established，relying on the correlation between luminous chrominance of probe and ONOO- fluorescence response to probe，which could be used to intelligently evaluate the detection effect of exogenous ONOO-．This detection platform has a potential to become a simple analysis tool for portable and intelligent detection of hazardous substances in the environment．In conclusion，the NIR dye-based probe 1a developed in this paper was applied to the detection of ONOO-，providing a new reference for the intelligent detection of hazardous substances. |
| Key Words:fluorescent probe near-infrared ONOO- detection WeChat app intelligent assessment |
| 引用本文：王虓，王学川，韩庆鑫.基于DCI的近红外探针和微信小程序的便携式荧光传感平台用于ONOO- 的分析检测[J].分析测试学报,2023,(5):614-620. |
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