End-to-end design of wearable sensors

Nature Reviews Materials, Journal Year: 2022, Volume and Issue: 7(11), P. 887 - 907

Published: July 22, 2022

Language: Английский

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Technology Roadmap for Flexible Sensors

ACS Nano, Journal Year: 2023, Volume and Issue: 17(6), P. 5211 - 5295

Published: March 9, 2023

Humans rely increasingly on sensors to address grand challenges and improve quality of life in the era digitalization big data. For ubiquitous sensing, flexible are developed overcome limitations conventional rigid counterparts. Despite rapid advancement bench-side research over last decade, market adoption remains limited. To ease expedite their deployment, here, we identify bottlenecks hindering maturation propose promising solutions. We first analyze achieving satisfactory sensing performance for real-world applications then summarize issues compatible sensor-biology interfaces, followed by brief discussions powering connecting sensor networks. Issues en route commercialization sustainable growth sector also analyzed, highlighting environmental concerns emphasizing nontechnical such as business, regulatory, ethical considerations. Additionally, look at future intelligent sensors. In proposing a comprehensive roadmap, hope steer efforts towards common goals guide coordinated development strategies from disparate communities. Through collaborative efforts, scientific breakthroughs can be made sooner capitalized betterment humanity.

Language: Английский

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Wearable Pressure Sensors for Pulse Wave Monitoring

Advanced Materials, Journal Year: 2022, Volume and Issue: 34(21)

Published: Jan. 19, 2022

Abstract Cardiovascular diseases remain the leading cause of death worldwide. The rapid development flexible sensing technologies and wearable pressure sensors have attracted keen research interest been widely used for long‐term real‐time cardiovascular status monitoring. Owing to compelling characteristics, including light weight, wearing comfort, high sensitivity pulse pressures, physiological waveforms can be precisely continuously monitored by health Herein, an overview human wave monitoring is presented, with a focus on transduction mechanism, microengineering structures, related applications in condition assessment. conceptualizations methods acquisition pathological information system are outlined. biomechanics arterial waves working mechanism various sensors, triboelectric, piezoelectric, magnetoelastic, piezoresistive, capacitive, optical also subject systematic debate. Exemple measurement based structured devices then summarized. Finally, discussion opportunities challenges that face, as well their potential intelligent personalized healthcare given conclusion.

Language: Английский

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Healable, Degradable, and Conductive MXene Nanocomposite Hydrogel for Multifunctional Epidermal Sensors

ACS Nano, Journal Year: 2021, Volume and Issue: 15(4), P. 7765 - 7773

Published: March 26, 2021

Conductive hydrogels have emerged as promising material candidates for epidermal sensors due to their similarity biological tissues, good wearability, and high accuracy of information acquisition. However, it is difficult simultaneously achieve conductive hydrogel-based with reliable healability long-term usage, robust mechanical property, environmental degradability decreased electronic waste, sensing capability the physiological stimuli electrophysiological signals. Herein, we propose synthesis strategy a multifunctional sensor based on highly stretchable, self-healing, degradable, biocompatible nanocomposite hydrogel, which fabricated from conformal coating MXene (Ti3C2Tx) network by hydrogel polymer networks involving poly(acrylic acid) amorphous calcium carbonate. The can be employed sensitively detect human motions fast response time (20 ms) serve skins wirelessly monitoring signals (such electromyogram electrocardiogram signals). Meanwhile, could degraded in phosphate buffered saline solution, not cause any pollution environment. This line research work sheds light fabrication healable, signal-sensitive potential applications human–machine interactions, healthy diagnosis, smart robot prosthesis devices.

Language: Английский

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Flexible Electronics and Devices as Human–Machine Interfaces for Medical Robotics

Advanced Materials, Journal Year: 2021, Volume and Issue: 34(16)

Published: Dec. 12, 2021

Abstract Medical robots are invaluable players in non‐pharmaceutical treatment of disabilities. Particularly, using prosthetic and rehabilitation devices with human–machine interfaces can greatly improve the quality life for impaired patients. In recent years, flexible electronic soft robotics have attracted tremendous attention this field due to their high biocompatibility, functionality, conformability, low‐cost. Flexible on will make a promising alternative conventional rigid devices, which potentially revolutionize paradigm future direction medical terms feedback user experience. review, fundamental components materials, structures, mechanisms human‐machine summarized by renowned applications five primary areas: physical chemical sensing, physiological recording, information processing communication, robotic actuation, stimulation. This review further concludes discussing outlook current challenges these technologies as interface robotics.

Language: Английский

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Natural Biopolymer-Based Biocompatible Conductors for Stretchable Bioelectronics

Chemical Reviews, Journal Year: 2021, Volume and Issue: 121(4), P. 2109 - 2146

Published: Jan. 18, 2021

Biocompatible conductors are important components for soft and stretchable bioelectronics digital healthcare, which have attracted extensive research efforts. Natural biopolymers, compared to other polymers, possess unique features that make them promising building blocks biocompatible conductors, such as good biocompatibility/biodegradability, natural abundance, sustainability, capability, can be processed into various functional formats with tunable material properties under benign conditions. In this comprehensive review, we focus on the recent advances in based biopolymers bioelectronics. We first give a brief introduction of conductive polymers summarize development representative including protein (silk), polypeptide (gelatin), polysaccharide (alginate). The design fabrication strategies these outlined, after chemical structure presented. Then discuss electronic component-biopolymer interface bioelectronic-biological tissue (skin internal tissues) interface, highlight techniques bioelectronics, introduce examples utilizing biopolymer-based on-skin textile-based wearable electronics, implantable healthcare. Finally, present concluding remarks challenges prospects designing

Language: Английский

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Flexible Wearable Sensors for Cardiovascular Health Monitoring

Advanced Healthcare Materials, Journal Year: 2021, Volume and Issue: 10(17)

Published: May 6, 2021

Abstract Cardiovascular diseases account for the highest mortality globally, but recent advances in wearable technologies may potentially change how these illnesses are diagnosed and managed. In particular, continuous monitoring of cardiovascular vital signs early intervention is highly desired. To this end, flexible sensors that can be comfortably worn over long durations gaining significant attention. review, advanced signals outlined discussed. Specifically, functional materials, configurations, mechanisms, heart rate, blood pressure, oxygen saturation, glucose highlighted. Different mechanisms bioelectric, mechano‐electric, optoelectric, ultrasonic presented to monitor from different body locations. Present challenges, possible strategies, future directions also With rapid development, will applicable both medical diagnosis daily healthcare use tackling diseases.

Language: Английский

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Solution-processable, soft, self-adhesive, and conductive polymer composites for soft electronics

Nature Communications, Journal Year: 2022, Volume and Issue: 13(1)

Published: Jan. 18, 2022

Abstract Soft electronics are rising electronic technologies towards applications spanning from healthcare monitoring to medical implants. However, poor adhesion strength and significant mechanical mismatches inevitably cause the interface failure of devices. Herein we report a self-adhesive conductive polymer that possesses low modulus (56.1-401.9 kPa), high stretchability (700%), interfacial (lap-shear >1.2 MPa), conductivity (1-37 S/cm). The is fabricated by doping poly(3,4-ethylenedioxythiophene): poly(styrene sulfonate) composite with supramolecular solvent (β-cyclodextrin citric acid). We demonstrated solution process-based fabrication polymer-based electrodes for various soft devices, including alternating current electroluminescent electromyography monitoring, an integrated system visualization signals during muscle training array show promising features further develop wearable comfortable bioelectronic devices physiological electric human body readable displayable daily activities.

Language: Английский

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Triboelectric Nanogenerator Enabled Wearable Sensors and Electronics for Sustainable Internet of Things Integrated Green Earth

Advanced Energy Materials, Journal Year: 2022, Volume and Issue: 13(1)

Published: Nov. 18, 2022

Abstract The advancement of the Internet Things/5G infrastructure requires a low‐cost ubiquitous sensory network to realize an autonomous system for information collection and processing, aiming at diversified applications ranging from healthcare, smart home, industry 4.0 environmental monitoring. triboelectric nanogenerator (TENG) is considered most promising technology due its self‐powered, cost‐effective, highly customizable advantages. Through use wearable electronic devices, advanced TENG developed as core enabling self‐powered sensors, power supplies, data communications aforementioned applications. In this review, advancements TENG‐based electronics regarding materials, material/device hybridization, systems integration, convergence, in environment monitoring, transportation, homes toward future green earth are reported.

Language: Английский

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Moisture‐Wicking, Breathable, and Intrinsically Antibacterial Electronic Skin Based on Dual‐Gradient Poly(ionic liquid) Nanofiber Membranes

Advanced Materials, Journal Year: 2021, Volume and Issue: 34(4)

Published: Nov. 9, 2021

Electronic skin can detect minute electrical potential changes in the human and represent body's state, which is critical for medical diagnostics human-computer interface development. On other hand, sweat has a significant effect on signal stability, comfort, safety of electronic real-world application. In this study, by modifying cation anion poly(ionic liquid) (PIL) employing spinning process, PIL-based multilayer nanofiber membrane (PIL membrane) with dual gradient created. The PIL moisture-wicking breathable due to hydrophilicity pore size-gradients. intrinsically antimicrobial activities PILs allow safe collection bioelectrical signals from body, such as electrocardiography (ECG) electromyography (EMG). addition, robotic hand may be operated real-time, preliminary accomplished simple processing collected EMG signal. This study establishes novel practical approach monitoring using circumstances via multifunctional skin.

Language: Английский

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