Textile electronics have become an indispensable part of wearable applications because of their large flexibility,light-weight,comfort and electronic functionality upon the merge of textiles and microelectronics.As a ...Textile electronics have become an indispensable part of wearable applications because of their large flexibility,light-weight,comfort and electronic functionality upon the merge of textiles and microelectronics.As a result,the fabrication of functional fibrous materials and the integration of textile electronic devices have attracted increasing interest in the wearable electronic community.Challenges are encountered in the development of textile electronics in a way that is electrically reliable and durable,without compromising on the deformability and comfort of a garment,including processing multiple materials with great mismatches in mechanical,thermal,and electrical properties and assembling various structures with the disparity in dimensional scales and surface roughness.Equal challenges lie in high-quality and cost-effective processes facilitated by high-level digital technology enabled design and manufacturing methods.This work reviews the manufacturing of textile-shaped electronics via the processing of functional fibrous materials from the perspective of hierarchical architectures,and discusses the heterogeneous integration of microelectronics into normal textiles upon the fabric circuit board and adapted electrical connections,broadly covering both conventional and advanced textile electronic production processes.We summarize the applications and obstacles of textile electronics explored so far in sensors,actuators,thermal management,energy fields,and displays.Finally,the main conclusions and outlook are provided while the remaining challenges of the fabrication and application of textile electronics are emphasized.展开更多
Mimicking human skin mechanoreceptors grouped by various thresholds creates an efficient system to detect interfacial stress between skin and environment,enabling precise human perception.Specifically,the detected sig...Mimicking human skin mechanoreceptors grouped by various thresholds creates an efficient system to detect interfacial stress between skin and environment,enabling precise human perception.Specifically,the detected signals are transmitted in the form of spikes in the neuronal network via synapses.However,current efforts replicating this mechanism for healthmonitoring struggle with limitations in flexibility,durability,and performance,particularly in terms of low sensitivity and narrow detection range.This study develops novel soft mechanoreceptors with tunable pressure thresholds from 1.94 kPa to 15 MPa.The 0.455-mm-thin mechanoreceptor achieves an impressive on–off ratio of over eight orders of magnitude,up to 40,000 repeated compression cycles and after 20 wash cycles.In addition,the helical array reduces the complexity and port count,requiring only two output channels,and a differential simplification algorithm enables two-dimensional spatial mapping of pressure.This array shows stable performance across temperatures ranging from−40 to 50°C and underwater at depths of 1 m.This technology shows significant potential for wearable healthcare applications,including sensor stimulation for children and the elderly,and fall detection for Parkinson’s patients,thereby enhancing the functionality and reliability of wearable monitoring systems.展开更多
基金funding support from Research Grants Council, Hong Kong (Nos. 15201922E, 15203421E, 15202020E, 15201419E)Innovation and Technology Commission (ITC) of Hong Kong SAR Government (No. ITP/031/21TP)+2 种基金postgraduate scholarships from the same sourcessupported by the Distinguished Postdoctoral Fellowship from Hong Kong Polytechnic Universitysupported by ITC’s Postdoctoral Fellowship
文摘Textile electronics have become an indispensable part of wearable applications because of their large flexibility,light-weight,comfort and electronic functionality upon the merge of textiles and microelectronics.As a result,the fabrication of functional fibrous materials and the integration of textile electronic devices have attracted increasing interest in the wearable electronic community.Challenges are encountered in the development of textile electronics in a way that is electrically reliable and durable,without compromising on the deformability and comfort of a garment,including processing multiple materials with great mismatches in mechanical,thermal,and electrical properties and assembling various structures with the disparity in dimensional scales and surface roughness.Equal challenges lie in high-quality and cost-effective processes facilitated by high-level digital technology enabled design and manufacturing methods.This work reviews the manufacturing of textile-shaped electronics via the processing of functional fibrous materials from the perspective of hierarchical architectures,and discusses the heterogeneous integration of microelectronics into normal textiles upon the fabric circuit board and adapted electrical connections,broadly covering both conventional and advanced textile electronic production processes.We summarize the applications and obstacles of textile electronics explored so far in sensors,actuators,thermal management,energy fields,and displays.Finally,the main conclusions and outlook are provided while the remaining challenges of the fabrication and application of textile electronics are emphasized.
基金Grants Council of Hong Kong(Grant No.T42-513/24-R)Innovation and Technology Fund(Grant No.MRP/020/21)The Hong Kong Polytechnic University(Grant No.847A).
文摘Mimicking human skin mechanoreceptors grouped by various thresholds creates an efficient system to detect interfacial stress between skin and environment,enabling precise human perception.Specifically,the detected signals are transmitted in the form of spikes in the neuronal network via synapses.However,current efforts replicating this mechanism for healthmonitoring struggle with limitations in flexibility,durability,and performance,particularly in terms of low sensitivity and narrow detection range.This study develops novel soft mechanoreceptors with tunable pressure thresholds from 1.94 kPa to 15 MPa.The 0.455-mm-thin mechanoreceptor achieves an impressive on–off ratio of over eight orders of magnitude,up to 40,000 repeated compression cycles and after 20 wash cycles.In addition,the helical array reduces the complexity and port count,requiring only two output channels,and a differential simplification algorithm enables two-dimensional spatial mapping of pressure.This array shows stable performance across temperatures ranging from−40 to 50°C and underwater at depths of 1 m.This technology shows significant potential for wearable healthcare applications,including sensor stimulation for children and the elderly,and fall detection for Parkinson’s patients,thereby enhancing the functionality and reliability of wearable monitoring systems.
