Wearable health-monitoring devices are novel and integral developments based on smart-textiles.Conventional wearable technology consists of micro-controllers and a variety of electronic devices embedded on the skin,or...Wearable health-monitoring devices are novel and integral developments based on smart-textiles.Conventional wearable technology consists of micro-controllers and a variety of electronic devices embedded on the skin,or incorporated into the apparels,where they act as signal receptors,analytical devices and transmitters of the signals generated from the human body.Invasive methods are currently more commonly practiced where biofluids are obtained by penetrating the body by incision or injection,while in non-invasive methods no such penetrations take place.A critical review of current non-invasive wearable technology,including colorimetric,enzymatic,pH based,electrochemical and conductivity sensors,is presented in this paper along with the challenges and limitations they pose.Additionally,novel techniques of analysis have been explored concluding that a textile-based medium offers higher compatibility for integration of such sensors in comparison to other existing substrates.展开更多
Textile strain sensors capable of monitoring human physiological signals and activities have great potential in health moni-toring and sports.However,fabricating sensors with a wide sensing range,high sensitivity,robu...Textile strain sensors capable of monitoring human physiological signals and activities have great potential in health moni-toring and sports.However,fabricating sensors with a wide sensing range,high sensitivity,robustness,and the capability for seamless integration into apparel remains challenging.In this work,a textile resistive strain sensor(TRSS)fabricated by selectively inlaying a conductive yarn,that is covered with water-repellent and antioxidative acrylic/copper complex fibers,into a highly elastic substrate via an industrialized knitting process is proposed.The conductive yarn is folded and compactly stacked to sense strains by changing contact resistance through contact separation of adjacent yarn sections in stretching.Owing to this folded structure,the TRSS has a wide sensing range(0–70%),high sensitivity(maximum gauge factor GF_(max)=1560),low detection limit(<0.5%),long-term fatigue resistance over 4000 cycles,and it can be seamlessly integrated into and become a part of various smart apparel products.An elbow sleeve,a knee sleeve and a sock are demon-strated to effectively monitor and distinguish various human bending motions.The fabrication strategy paves a viable way for customizing high-performance strain sensors for developing novel wearable electronics and smart clothing to detect multimode human motions.展开更多
文摘Wearable health-monitoring devices are novel and integral developments based on smart-textiles.Conventional wearable technology consists of micro-controllers and a variety of electronic devices embedded on the skin,or incorporated into the apparels,where they act as signal receptors,analytical devices and transmitters of the signals generated from the human body.Invasive methods are currently more commonly practiced where biofluids are obtained by penetrating the body by incision or injection,while in non-invasive methods no such penetrations take place.A critical review of current non-invasive wearable technology,including colorimetric,enzymatic,pH based,electrochemical and conductivity sensors,is presented in this paper along with the challenges and limitations they pose.Additionally,novel techniques of analysis have been explored concluding that a textile-based medium offers higher compatibility for integration of such sensors in comparison to other existing substrates.
基金supported by the National Key R&D Program of China(grant number 2019YFF0302100).
文摘Textile strain sensors capable of monitoring human physiological signals and activities have great potential in health moni-toring and sports.However,fabricating sensors with a wide sensing range,high sensitivity,robustness,and the capability for seamless integration into apparel remains challenging.In this work,a textile resistive strain sensor(TRSS)fabricated by selectively inlaying a conductive yarn,that is covered with water-repellent and antioxidative acrylic/copper complex fibers,into a highly elastic substrate via an industrialized knitting process is proposed.The conductive yarn is folded and compactly stacked to sense strains by changing contact resistance through contact separation of adjacent yarn sections in stretching.Owing to this folded structure,the TRSS has a wide sensing range(0–70%),high sensitivity(maximum gauge factor GF_(max)=1560),low detection limit(<0.5%),long-term fatigue resistance over 4000 cycles,and it can be seamlessly integrated into and become a part of various smart apparel products.An elbow sleeve,a knee sleeve and a sock are demon-strated to effectively monitor and distinguish various human bending motions.The fabrication strategy paves a viable way for customizing high-performance strain sensors for developing novel wearable electronics and smart clothing to detect multimode human motions.
