The growing number of contaminants requires the development of new analytical tools to meet the increasing demand for legislative actions on food safety and environmental pollution control. In this context, electrochemical aptamer-based sensors appear promising among all biosensors because they permit multiplexed analysis and provide fast response, sensitivity, specificity and low cost. The aim of this review is to give the readers an overview of recent important achievements in the development of electrochemical aptamer-based biosensors for contaminant detection over the last two years. Special emphasis is placed on aptasensors based on screen-printed electrodes which show a substantial improvement of analytical performances.

越来越多的污染物要求开发新的分析工具，以满足对食品安全和环境污染控制立法行动的日益增长的需求。在这种情况下，基于电化学适体的传感器在所有生物传感器中似乎很有希望，因为它们可以进行多重分析并提供快速响应，灵敏性，特异性和低成本。这篇综述的目的是向读者概述过去两年中在用于污染物检测的基于电化学适体的生物传感器的开发中最近取得的重要成就。特别强调基于丝网印刷电极的适体传感器，这些传感器显示出了分析性能的显着提高。