自驱动柔性生物医学传感器的研究进展

Research progress of self-powered flexible biomedical sensors

柔性传感器是生物医学领域的研究热点,受到了广泛的关注.然而,柔性传感器需要外部电池供能,续航时间短,这成为了制约其发展的瓶颈.自驱动电子器件概念的提出,为解决续航问题提供了重要思路.本文梳理了自驱动柔性生物医学传感器的最新研究进展,从原理、材料、器件和生物医学应用等角度出发,概述了不同自驱动技术在人体生理信号传感方面的技术特点与研究现状,重点介绍了部分穿戴式和植入式自驱动柔性传感器在人体的呼吸、脉搏、温度监测和人工感觉器官中的代表性研究工作.最后,本文还对自驱动柔性生物医学传感器当前的挑战和未来的发展趋势进行了展望和总结.

In recent years,flexible biomedical sensors have received extensive attention and achieved great development.However,the battery life of flexible biomedical sensors is limited,which has become a bottleneck restricting the development of flexible biomedical sensors.The concept of self-powered flexible biomedical sensor provides an important idea for solving battery life problem.This review summarizes the research progress of self-powered flexible biomedical sensors over the years.Besides,this review discusses several self-powered flexible biomedical sensors based on different power generation technologies and different materials,as well as their respective advantages and scope of application.Further,some representative research works are selected and discussed in detail.Self-powered flexible biomedical sensors can be divided into wearable self-powered flexible biomedical sensors and implantable self-powered flexible biomedical sensors according to their working positions,which can be used to collect important physiological indicators such as human respiration,pulse,temperature,etc.Finally,this paper also predicts and evaluates the future research direction of self-powered flexible biomedical sensors.