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Smart Agriculture ›› 2020, Vol. 2 ›› Issue (2): 1-10.doi: 10.12133/j.smartag.2020.2.2.202003-SA003

• 专题--农业传感器与物联网 •    下一篇

农产品质量安全纳米传感应用研究分析与展望

王培龙1, 唐智勇2()   

  1. 1.中国农业科学院 农业质量标准与检测技术研究所,北京 100081
    2.国家纳米科学中心,北京 100190
  • 收稿日期:2020-03-04 修回日期:2020-04-01 出版日期:2020-06-30
  • 基金资助:
    国家自然科学基金青年科学项目(21777189);国家重点研发专项(2017YFC1601604);中国农业科学院基本科研业务费(Y2019PT21-02)
  • 作者简介:王培龙(1979-),男,博士,研究员,研究方向为微纳传感分析。E-mail:wangpeilong@caas.cn。
  • 通信作者:

Application Analysis and Prospect of Nanosensor in the Quality and Safety of Agricultural Products

WANG Peilong1, TANG Zhiyong2()   

  1. 1.Institute of Quality Standards and Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences, Beijing 100081, China
    2.National Center for Nanoscience and Technology, Beijing 100190, China
  • Received:2020-03-04 Revised:2020-04-01 Online:2020-06-30
  • Supported by:
    National Natural Science Foundation of China (21777189); National Key Research and Development Program of China (2017YFC1601604); Chinese Academy of Agricultural Sciences Basic Research Business Fund (Y2019PT21-02)

摘要:

纳米材料具有特殊的尺寸效应和优异的光电性质,已在传感分析中得到高度重视和广泛应用,大幅提高了传感分析技术的性能。近年来,智慧农业发展迅速,农产品质量安全作为农业生产的重要组成部分,对农业传感技术的灵敏度、稳定性和检测通量等指标要求越来越高。本综述简要阐述了几种常用的纳米材料的性质和特点,包括碳基纳米材料、金属纳米材料和金属-有机框架材料等。重点论述了基于纳米材料的化学传感、生物传感、电化学传感和光谱传感等常用传感分析技术和器件,以及纳米传感分析技术在农产品质量安全,尤其在克伦特罗和三聚氰胺等危害物,甲硝唑、二噁英类化合物,违禁添加物,真菌毒素,锌、镉、铅等目标物,丙烯酰胺、呋喃类、硝基呋喃类抗生素监测等方面的应用。纳米材料的制备和修饰技术扔需要进一步提升,多目标、高通量纳米传感器件在实际应用中的价值广受关注,在线传感分析在农产品质量安全智慧监控方面有迫切需求需要快速、实时、在线监测。

关键词: 纳米材料, 智慧农业, 农产品质量安全, 纳米传感器

Abstract:

Nano materials with special size effect and excellent photoelectric properties have been highly valued and widely used in sensing analysis for greatly improving the performance of sensor analysis technology. In recent years, with the rapid development of smart agriculture, the quality and safety of agricultural products as an important part of agricultural production have attracted more and more attentions. There are many harmful ingredients, including pesticides, veterinary drugs, mycotoxins, and environmental contaminants etc, can potentially affected the quality and safety of agricultural products. Therefore, high performance analytical methods and sensing technologies are essential. Thanks to the emerging of nano materials, they provide a novel approach to improve the analytical performances of the sensing technologies. Furthermore, the sensors based on nano materials have also been utilized into monitoring the harmful substances in agricultural products. This review briefly described the properties and characteristics of several commonly used nano materials, including carbon nano materials, noble metal based nano materials and metal-organic framework materials, follow discussed on the common sensing and analysis technologies and devices based on nano materials, such as chemical sensor, biosensor, electrochemical sensor and spectral sensor, as well as the application of nano sensing technology in the quality and safety monitoring of agricultural products. Especially, the function of nano materials in sensors and analytical performances of the developed sensors had been discussed in detailed. Chemical sensor devices had the characteristics of fast response speed and high sensitivity. They were widely used in environmental monitoring, food safety and medical diagnosis, such as monitoring hazardous substances, clenbuterol and melamine, metronidazole, dioxins, etc. Biosensors were widely used to monitor prohibited additives, mycotoxins, and so on. Electrochemical sensors were typically equipped with miniaturized analysis equipment, which detected trace targets, including small organic molecules, metal ions and biomolecules, by measuring changed in current and other electrochemical signals. This article introduced surface-enhanced Raman spectroscopy (SERS) , which was one of spectral sensor, and its applications. SERS technology had the advantages of good sensitivity, single molecule detection capability and rich spectral information. It had become a promising spectral technology in the rapid sensing analysis of target objects, and is developing rapidly in the fields of food safety, environmental monitoring and health. Finally, the existing problems of nano sensing and analysis technology, such as achievement of high-performance nano materials, fabrication of sensing devices and construction of high flux sensing arrays were summarized. The development trend and prospect of nanosensor were also discussed. It is believed that the review could provide a lot of useful information for the readers to understand the development of sensing technology for the quality and safety of agricultural products.

Key words: nanomaterials, smart agriculture, quality and safety for agro-products, nano sensor

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