用于检测植物和食品样品中水杨酸的高选择性和快速“开启”荧光化学传感器,ACS Sensors

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用于检测植物和食品样品中水杨酸的高选择性和快速“开启”荧光化学传感器
ACS Sensors ( IF 8.2 ) Pub Date : 2023-11-02 , DOI: 10.1021/acssensors.3c00159
Jie-Ying Chen ₁ , A-Ling Tang ₁ , Ping Yang ₁ , Lin-Lin Yang ₁ , Shuai Tan ₁ , Wen-Jing Ma ₁ , Shi-Tao Liu ₁ , Hou-Yun Huang ₁ , Xiang Zhou ₁ , Li-Wei Liu ₁ , Song Yang ₁

Affiliation

水杨酸（SA）是一种化学分子，参与植物生长和免疫，从而有助于控制害虫和病原体，甚至应用于水果和蔬菜保鲜。然而，只有少数工具被设计或执行来了解SA诱导的生理过程或其在植物免疫和食品中残留检测中的功能。因此，我们合成了三种基于Rh6G的荧光化学传感器，用于基于“OFF-ON”机制检测植物激素SA。该探针对 SA 表现出高选择性、超快响应时间（<60 秒）和纳摩尔检测限。此外，该探针具有出色的分析能力，可成功用于愈伤组织和植物的 SA 成像。此外，荧光模式表明SA可能发生在植物的远端运输中。这些显着的结果有助于提高我们对 SA 所涉及的多种生理和病理过程的理解，用于植物病害诊断和免疫激活剂的开发。此外，一些农产品中的SA检测使用探针来扩展实际应用，因为它在一些国家被禁止使用，并且对SA敏感者有害。有趣的是，所获得的试纸显示SA可以通过紫外线（UV）成像并且肉眼直接可见。鉴于上述结果，这些探针可用于体外和体内监测SA，包括但不限于植物生物学、食品残留检测和污水检测。

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Highly Selective and Rapid “Turn-On” Fluorogenic Chemosensor for Detection of Salicylic Acid in Plants and Food Samples

Salicylic acid (SA) is one of the chemical molecules, involved in plant growth and immunity, thereby contributing to the control of pests and pathogens, and even applied in fruit and vegetable preservation. However, only a few tools have ever been designed or executed to understand the physiological processes induced by SA or its function in plant immunity and residue detection in food. Hence, three Rh6G-based fluorogenic chemosensors were synthesized to detect phytohormone SA based on the “OFF–ON” mechanism. The probes showed high selectivity, ultrafast response time (<60 s), and nanomolar detection limit for SA. Moreover, the probe possessed outstanding profiling that can be successfully used for SA imaging of callus and plants. Furthermore, the fluorescence pattern indicated that SA could occur in the distal transport in plants. These remarkable results contribute to improving our understanding of the multiple physiological and pathological processes involved in SA for plant disease diagnosis and for the development of immune activators. In addition, SA detection in some agricultural products used probes to extend the practical application because its use is prohibited in some countries and is harmful to SA-sensitized persons. Interestingly, the as-obtained test paper displayed that SA could be imaged by ultraviolet (UV) and was directly visible to the naked eye. Given the above outcomes, these probes could be used to monitor SA in vitro and in vivo, including, but not limited to, plant biology, food residue detection, and sewage detection.

更新日期：2023-11-02

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