Wearable sensor device technologies, which enable continuous monitoring of biological information from the human body, are promising in the fields of sports, healthcare, and medical applications. Further thinness, light weight, flexibility and low-cost are significant requirements for making the devices attachable onto human tissues or clothes like a patch. Here we demonstrate a flexible and printed circuit system consisting of an enzyme-based amperometric sensor, feedback control and amplification circuits based on organic thin-film transistors. The feedback control and amplification circuits based on pseudo-CMOS inverters were successfuly integrated by printing methods on a plastic film. This simple system worked very well like a potentiostat for electrochemical measurements, and enabled the quantitative and real-time measurement of lactate concentration with high sensitivity of 1 V/mM and a short response time of a hundred seconds.
展开▼
机译:可穿戴式传感器设备技术能够连续监测来自人体的生物信息,在体育,医疗保健和医疗应用领域中前景广阔。进一步的薄,轻,柔性和低成本是使装置可附着在人体组织或衣服上的重要要求。在这里,我们演示了一个灵活的印刷电路系统,该系统由基于酶的电流传感器,基于有机薄膜晶体管的反馈控制和放大电路组成。通过伪CMOS反相器的反馈控制和放大电路已通过印刷方法成功地集成在塑料薄膜上。这个简单的系统像恒电位仪一样非常好用,可以进行电化学测量,并且可以定量和实时测量乳酸浓度,灵敏度高达1 V / mM,响应时间短至一百秒。
展开▼