The importance of continuous healthcare management has significantly accelerated the development of wearable devices for monitoring health-related physical and biochemical markers. Despite extensive research on wearab...The importance of continuous healthcare management has significantly accelerated the development of wearable devices for monitoring health-related physical and biochemical markers. Despite extensive research on wearable devices for physiological and biochemical monitoring, critical issues of power management and device/skin interfacial properties restrict the advancement of personalized healthcare and early disease detection. Here, we report a multimodal sweat monitoring device featuring a real-time display and long-term data analysis based on self-powered format of sweat-activated batteries (SABs). The polyvinyl alcohol-sucrose (PVA-Suc) hydrogel serves as the key component for the SAB, offering not only great long-term adhesive properties for conformable wearability but also significant power generation capabilities. A maximum current density of 44.06 mA cm^(−2) and a maximum power density of 21.89 mW cm^(−2) can be realized for the hydrogel based SAB. The resulting device integrates an advanced colorimetric and electrochemical sensor array to measure pH levels, glucose concentrations, and chloride ion levels in human sweat, with data wirelessly transmitted by Near Field Communication. The self-powering features and multiple mode sensing function offer sufficient power to support real-time monitoring of metabolic biomarkers in sweat, with the ability to visually observe changes in the colorimetric sensors for long-term data monitoring.展开更多
Personal thermal management(PTM)is an important topic that holds great potential for enhancing human thermal comfort and optimizing energy efficiency,that typically relies on clothing and textiles.However,traditional ...Personal thermal management(PTM)is an important topic that holds great potential for enhancing human thermal comfort and optimizing energy efficiency,that typically relies on clothing and textiles.However,traditional textiles fail to adjust human thermal loss at low and high temperatures,no longer satisfy the soaring needs of dynamic heat dissipation due to diversified environmental operation.Recent research has seen significant advancements in smart thermal radiative textiles,which are driven by the booming progress in material-oriented and energy-oriented science and technology.These textiles endow the PTM systems with the efficient modulation of human body temperature and wearable comfortability,demonstrating considerable promise due to their rapid conversion efficiency of radiant heat.Here,we primarily introduce the fundamental concepts of heat transfer as well as the radiant heat regulating principles based on smart textiles.Subsequently,different regulation functionalities of smart textiles,consisting of radiative cooling,radiative heating,and smart textile systems for radiative heating and cooling are demonstrated in detail.Finally,the current obstacles and prospective solutions for smart radiation-controlled textiles are proposed to enhance future thermal management technologies,giving prominence to functional innovations and commercial incubation.展开更多
基金Research Grants Council,University Grants Committee,Grant/Award Numbers:11211523,11213721,11215722,RFS2324-1S03National Natural Science Foundation of China,Grant/Award Number:62122002City University of Hong Kong,Grant/Award Numbers:9667199,9667221,9667246,9680322。
文摘The importance of continuous healthcare management has significantly accelerated the development of wearable devices for monitoring health-related physical and biochemical markers. Despite extensive research on wearable devices for physiological and biochemical monitoring, critical issues of power management and device/skin interfacial properties restrict the advancement of personalized healthcare and early disease detection. Here, we report a multimodal sweat monitoring device featuring a real-time display and long-term data analysis based on self-powered format of sweat-activated batteries (SABs). The polyvinyl alcohol-sucrose (PVA-Suc) hydrogel serves as the key component for the SAB, offering not only great long-term adhesive properties for conformable wearability but also significant power generation capabilities. A maximum current density of 44.06 mA cm^(−2) and a maximum power density of 21.89 mW cm^(−2) can be realized for the hydrogel based SAB. The resulting device integrates an advanced colorimetric and electrochemical sensor array to measure pH levels, glucose concentrations, and chloride ion levels in human sweat, with data wirelessly transmitted by Near Field Communication. The self-powering features and multiple mode sensing function offer sufficient power to support real-time monitoring of metabolic biomarkers in sweat, with the ability to visually observe changes in the colorimetric sensors for long-term data monitoring.
基金supported by the Innovation and Technology Fund of Innovation and Technology Commission(Grant No.ITS/119/22)Shenzhen Science and Technology Innovation Commission(Grant No.SGDX20220530111401011)+3 种基金Research Grants Council of the Hong Kong Special Administrative Region(Grant nos.RFS2324-1S03,11211523,11213721,and 11215722)National Natural Science Foundation of China(Grant no.62122002)The City University of Hong Kong(Grant nos.9667221,9667246,9680322,and 9667199)in part of the InnoHK Project on Project 2.2—AI-based 3D ultrasound imaging algorithm at Hong Kong Centre for Cerebro-Cardiovascular Health Engineering(COCHE).
文摘Personal thermal management(PTM)is an important topic that holds great potential for enhancing human thermal comfort and optimizing energy efficiency,that typically relies on clothing and textiles.However,traditional textiles fail to adjust human thermal loss at low and high temperatures,no longer satisfy the soaring needs of dynamic heat dissipation due to diversified environmental operation.Recent research has seen significant advancements in smart thermal radiative textiles,which are driven by the booming progress in material-oriented and energy-oriented science and technology.These textiles endow the PTM systems with the efficient modulation of human body temperature and wearable comfortability,demonstrating considerable promise due to their rapid conversion efficiency of radiant heat.Here,we primarily introduce the fundamental concepts of heat transfer as well as the radiant heat regulating principles based on smart textiles.Subsequently,different regulation functionalities of smart textiles,consisting of radiative cooling,radiative heating,and smart textile systems for radiative heating and cooling are demonstrated in detail.Finally,the current obstacles and prospective solutions for smart radiation-controlled textiles are proposed to enhance future thermal management technologies,giving prominence to functional innovations and commercial incubation.
