Abstract

The development of portable and efficient nanoprobes to realize the quantitative/qualitative onsite determination of food pollutants is of immense importance for safeguarding human health and food safety. With the advent of the smartphone, the digital imaging property causes it to be an ideal diagnostic substrate to point-of-care analysis probes. Besides, merging the versatility of carbon dots nanostructures and bioreceptor abilities has opened an innovative assortment of construction blocks to design advanced nanoprobes or improving those existing ones. On this ground, massive endeavors have been made to combine mobile phones with smart nanomaterials to produce portable (bio)sensors in a reliable, low cost, rapid, and even facile-to-implement area with inadequate resources. Herein, this work outlines the latest advancement of carbon dots nanostructures on smartphone for onsite detecting of agri-food pollutants. Particularly, we afford a summary of numerous approaches applied for target molecule diagnosis (pesticides, mycotoxins, pathogens, antibiotics, and metal ions), for instance microscopic imaging, fluorescence, colorimetric, and electrochemical techniques. Authors tried to list those scaffolds that are well-recognized in complex media or those using novel constructions/techniques. Lastly, we also point out some challenges and appealing prospects related to the enhancement of high-efficiency smartphone based carbon dots systems.

 抽象的

开发便携式高效纳米探针实现食品污染物的定量/定性现场测定对于保障人类健康和食品安全具有重要意义。随着智能手机的出现，数字成像特性使其成为即时分析探针的理想诊断基质。此外，将碳点纳米结构的多功能性和生物受体能力相结合，开辟了一系列创新的构建模块，用于设计先进的纳米探针或改进现有的纳米探针。在此基础上，人们做出了巨大的努力，将手机与智能纳米材料结合起来，在资源不足的情况下，在可靠、低成本、快速甚至易于实施的领域生产便携式（生物）传感器。本文概述了智能手机上碳点纳米结构用于农业食品污染物现场检测的最新进展。特别是，我们总结了用于目标分子诊断（农药、霉菌毒素、病原体、抗生素和金属离子）的多种方法，例如显微成像、荧光、比色和电化学技术。作者试图列出那些在复杂媒体中得到广泛认可的支架或那些使用新颖结构/技术的支架。最后，我们还指出了与增强基于高效智能手机的碳点系统相关的一些挑战和诱人的前景。