Jiangxi Agricultural University has made new progress in the field of agricultural safety intelligent sensor analysis research
By: Date: 2021-04-06 Categories: foodtechnology Tags: ,
  With the support of the National Natural Science Foundation of China, the Jiangxi Provincial Natural Science Foundation and other projects, the young professor Wen Yangping of the School of Science of Jiangxi Agricultural University, the Professor Wu Ruimei of the School of Engineering, and the Professor Nie Pengcheng of Zhejiang University have made new achievements in the field of agricultural safety intelligent sensor analysis. Progress and related research results, titled”Agricultural Safety Intelligent Sensor Analysis”, will be published online in”Biosensors and Bioelectronics” in March 2021. Jiangxi Agricultural University is the first author of the paper, and Wen Yangping, Wu Ruimei and Nie Pengcheng are the co-corresponding authors.
  Naphthalene acetic acid (NAA) is a naphthalene-derived plant growth regulator, which is closely related to increasing the protein and fat content of crops. However, NAA is potentially harmful to the human body, and even some illegal traders use it to produce rootless bean sprouts. Therefore, the development of a highly sensitive, fast, simple, cheap, portable, wireless intelligent detection method to achieve rapid detection of NAA traces in farmland environments and agricultural products is very important to ensure agricultural products and food safety and environmental safety. Among many traditional analysis methods, sensors are favored because of their simple operation, cost-effective, fast detection, high sensitivity and outdoor use. More importantly, the electrochemical sensor is miniaturized, intelligent, and wirelessly transmitted, and the electrode can be easily obtained through the material surface patterning preparation technology, without the complicated, cumbersome, and time-consuming traditional preparation process.
   Laser-induced porous graphene (LIPG) electrode is obtained by laser direct writing technology on commercial thermoplastic polymers such as polyimide. It has excellent flexibility, good porosity, large specific surface area, high electrical conductivity, and easy The advantages of processing and low cost have gradually replaced traditional glassy carbon electrodes or metal electrodes for flexible chemically modified electrodes and wearable electronic devices. The extraordinary properties and unique structure of phosphene (BP) phosphene provide huge potential opportunities for high-performance sensor research, but its preparation and application still have common defects such as stability and other graphene-like defects. As a new graphene-like material, MXene The formation of nano-hybrid between valence and BP can solve MXene aggregation and BP stability, while combining the advantages of both to improve electrochemical sensing performance. Based on this, the team developed a highly stable phosphene/MXene self-assembled nano-hybrid modified laser-induced porous graphene nanoenzyme flexible sensor electrode, combined with a mini-type cheap electrochemical wireless detection device, through a smart flat panel, combined with machine learning smart algorithms, Realize agricultural safety instant detection (POCT) intelligent sensor analysis. This work provides theoretical support and practical foundation for the preparation of graphene-like composite materials and the construction of agricultural safety POCT sensing platform.
Jiangxi Agricultural University has made new progress in the field of agricultural safety intelligent sensor analysis researchimage
   link to the original text:https://doi.org/10.1016/j.bios.2021.113062