Study On Breathable Transparent Skin Electrode Design And Its Performance

Recently,with the rapid development of Internet,mobile medication has gradually become the main direction of the development of the medical industry,which also provides a new scheme for long-term,efficient and sustained human health monitoring.As one of the important components of mobile medication,monitoring bioelectrical signals is the main means of studying biological function activities,and epidermal electrodes play a key role in signal acquisition.Traditional bioelectrical signal monitoring is often limited by detection equipment,site and epidermal electrodes,which is not suitable for long-term health data acquisition,thus limiting the development of precision health care.In order to solve these problems,researchers have developed adaptive gel skin electrodes to achieve good bioelectrical signal monitoring and long time signal acquisition.However,they are also faced with problems such as attenuation of the performance of gel electrodes and skin inflammation caused by airtight conditions.Based on this,this paper will proceed from the material selection and structure design of the epidermal electrode,and prepare the epidermal electrode with good signal acquisition and comfortable use.The main work is as follows:(1)Design of high performance electrodes and their comfort degree: Through redesigning the structure of the epidermal electrodes and preparing the electrode materials with good performance,the thin and highly conductive epidermal electrodes can be obtained,thus realizing conformal contact with skin and acquisition of high signal-to-noise ratio bioelectric signals.In the experiment,poly(3,4-ethylenedioxythiophene)-polystyrene sulfonic acid(PEDOT:PSS)and silver nanowires(AgNWs)were selected as the materials for the preparation of epidermal electrodes,and the PEDOT:PSS/AgNWs/PEDOT:PSS sandwich structure composite epidermal electrodes were obtained by the preparation of selfsupporting films.(2)Study on the performance of epidermal electrodes: Through the study of the collection performance of the force,electricity,light and electrophysiological signals of the epidermal electrodes,the adaptability of the prepared epidermal electrodes in mobile medication was deeply explored.Experiments show that the composite electrode can collect bioelectric signals efficiently after it is transferred to the skin,and can monitor the health and movement of users in real time.After testing the mechanical properties,the conductivity of the composite electrode remains stable,which ensures its reliability in practical use.Furthermore,sweat generated by the movement can be evaporated by reaching the outer side of the film.Finally,the composite electrode has good biocompatibility and is suitable for long-term safe use.