Chemo and Biosensors Group, Faculty of Farmasi, University of Jember, Jember 68121, Indonesia.
Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Universitas Gadjah Mada, Yogyakarta 55281, Indonesia.
Biosensors (Basel). 2022 Nov 28;12(12):1088. doi: 10.3390/bios12121088.
Nowadays, foodborne pathogens and other food contaminants are among the major contributors to human illnesses and even deaths worldwide. There is a growing need for improvements in food safety globally. However, it is a challenge to detect and identify these harmful analytes in a rapid, sensitive, portable, and user-friendly manner. Recently, researchers have paid attention to the development of paper-based electrochemical biosensors due to their features and promising potential for food safety analysis. The use of paper in electrochemical biosensors offers several advantages such as device miniaturization, low sample consumption, inexpensive mass production, capillary force-driven fluid flow, and capability to store reagents within the pores of the paper substrate. Various paper-based electrochemical biosensors have been developed to enable the detection of foodborne pathogens and other contaminants that pose health hazards to humans. In this review, we discussed several aspects of the biosensors including different device designs (e.g., 2D and 3D devices), fabrication techniques, and electrode modification approaches that are often optimized to generate measurable signals for sensitive detection of analytes. The utilization of different nanomaterials for the modification of electrode surface to improve the detection of analytes via enzyme-, antigen/antibody-, DNA-, aptamer-, and cell-based bioassays is also described. Next, we discussed the current applications of the sensors to detect food contaminants such as foodborne pathogens, pesticides, veterinary drug residues, allergens, and heavy metals. Most of the electrochemical paper analytical devices (e-PADs) reviewed are small and portable, and therefore are suitable for field applications. Lastly, e-PADs are an excellent platform for food safety analysis owing to their user-friendliness, low cost, sensitivity, and a high potential for customization to meet certain analytical needs.
如今,食源性致病菌和其他食品污染物是导致全球人类疾病甚至死亡的主要因素之一。全球范围内对食品安全的改进有了更大的需求。然而,快速、灵敏、便携和用户友好地检测和识别这些有害分析物是一个挑战。最近,研究人员关注了基于纸张的电化学生物传感器的发展,因为它们具有这些特点和在食品安全分析方面有很大的应用潜力。电化学生物传感器中使用纸张具有一些优点,例如设备小型化、低样品消耗、低成本批量生产、毛细作用力驱动的流体流动以及能够在纸张基质的孔内储存试剂。已经开发了各种基于纸张的电化学生物传感器来实现对食源性致病菌和其他对人类健康构成危害的污染物的检测。在本综述中,我们讨论了生物传感器的几个方面,包括不同的器件设计(例如 2D 和 3D 器件)、制造技术和电极修饰方法,这些方法通常经过优化以产生可测量的信号,从而实现对分析物的灵敏检测。还描述了利用不同纳米材料修饰电极表面以提高通过酶、抗原/抗体、DNA、适配体和基于细胞的生物测定法检测分析物的能力。接下来,我们讨论了传感器用于检测食品污染物(如食源性致病菌、农药、兽药残留、过敏原和重金属)的当前应用。综述的大多数电化学纸张分析设备(e-PADs)体积小且便携,因此适合现场应用。最后,e-PADs 是食品安全分析的绝佳平台,因为它们易于使用、成本低、灵敏度高,并且具有高度的定制化潜力,以满足某些分析需求。
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