High‐accuracy dynamic gesture recognition: A universal and self‐adaptive deep‐learning‐assisted system leveraging high‐performance ionogels‐based strain sensors

SmartMat, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 15, 2024

Abstract Gesture recognition utilizing flexible strain sensors is a highly valuable technology widely applied in human–machine interfaces. However, achieving rapid detection of subtle motions and timely processing dynamic signals remain challenge for sensors. Here, resilient durable ionogels are developed by introducing micro‐scale incompatible phases macroscopic homogeneous polymeric network. The compatible network disperses conductive ionic liquid to form stretchable skeleton, while phase forms hydrogen bonds dissipate energy thus strengthening the ionogels. ionogels‐derived show sensitivity, fast response time (<10 ms), low limit (~50 μm), remarkable durability (>5000 cycles), allowing precise monitoring human motions. More importantly, self‐adaptive program empowered deep‐learning algorithms designed compensate sensors, creating comprehensive system capable gesture recognition. This can comprehensively analyze both temporal spatial features sensor data, enabling deeper understanding process underlying gestures. accurately classifies 10 hand gestures across five participants with impressive accuracy 93.66%. Moreover, it maintains robust performance without need further training even when different or subjects involved. technological breakthrough paves way intuitive seamless interaction between humans machines, presenting significant opportunities diverse applications, such as human–robot interaction, virtual reality control, assistive devices disabled individuals.

Language: Английский

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Revolutionizing digital healthcare networks with wearable strain sensors using sustainable fibers

SusMat, Journal Year: 2024, Volume and Issue: 4(4)

Published: May 29, 2024

Abstract Wearable strain sensors have attracted research interest owing to their potential within digital healthcare, offering smarter tracking, efficient diagnostics, and lower costs. Unlike rigid sensors, fiber‐based ones compete with flexibility, durability, adaptability body structures as well eco‐friendliness environment. Here, the sustainable wearable for health are reviewed, material, fabrication, practical healthcare aspects explored. Typical predicated on various sensing modalities, be it resistive, capacitive, piezoelectric, or triboelectric, explained analyzed according strengths weaknesses toward fabrication applications. The applications in spanning from area networks, intelligent management, medical rehabilitation multifunctional systems also evaluated. Moreover, create a more complete network, wired wireless methods of data collection examples machine learning elaborated detail. Finally, prevailing challenges prospective insights into advancement novel fibers, enhancement precision wearability, establishment seamlessly integrated critically summarized offered. This endeavor not only encapsulates present landscape but lays foundation future breakthroughs sensor technology domain health.

Language: Английский

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Stretchable multimodal textile sensor based on core-sheath CB/PDMS/MXene sensing yarn for efficiently distinguishing mechanical stimulus

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 493, P. 152462 - 152462

Published: May 22, 2024

Language: Английский

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Precise diagnosis of tumor cells and hemocytes using ultrasensitive, stable, selective cuprous oxide composite SERS bioprobes assisted with high-efficiency separation microfluidic chips

Materials Horizons, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

In this study, we reported a flower-like Cu 2 O@Ag SERS substrate for distinguish three types of cancer cells from white blood by using machine learning-assisted LDA, after separating samples via microfluidic chip.

Language: Английский

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Pursuing Superhydrophobic Flexible Strain Sensors: From Design to Applications

Advanced Materials Technologies, Journal Year: 2024, Volume and Issue: 9(9)

Published: Feb. 19, 2024

Abstract Flexible strain sensors are being increasingly applied as wearable electronic materials owing to their functional characteristics (e.g., light weight, stretchability, wearability), which highlight enormous potential in health monitoring and medical care. However, challenges related signal distortion corrosion risks arise when they used under extreme or harsh conditions. Superhydrophobic flexible combine the water‐repellent, anticorrosion, anti‐fouling features of superhydrophobic coating with high ductility sensitivity sensor, thereby broadening application scope sensors, especially for underwater sensing. sensing applications have not yet been thoroughly summarized. This review presents key performance parameters design strategies an emphasis on diverse

Language: Английский

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Mussel‐Inspired Highly Sensitive, Stretchable, and Self‐Healable Yarns Enabled by Dual Conductive Pathways and Encapsulation for Wearable Electronics

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 16, 2025

Abstract Wearable electronic textiles, capable of detecting human motions and recognizing gestures, represent the forefront personalized electronics. However, integration high stretchability, sensitivity, durability, self‐healable/self‐bondable capabilities into one platform remains challenging. Herein, mussel‐inspired stretchable, sensitive, self‐healable/self‐bonded conductive yarns enabled by dual electron transfer pathways encapsulation technology are presented. Specifically, covered spandex provide necessary stretchability adsorption capacity, while supramolecular polydopamine layer affords enhanced interfacial interactions. Reduced graphene oxide nanosheets silver nanoparticle‐based sensing layers offer pathways. Dual encapsulations with ability not only mitigate crack propagation but also protect inner materials from detachment. Benefiting these rational designs, composite exhibit a large range (158% strain), sensitivity (22.88), low detection limit (0.0345%), fast response/recovery times (105/150 ms), remarkable robustness (enduring 10 000 cycles at 20% strain). Furthermore, pressure sensors arrays assembled stacking perpendicularly using self‐bondable function, self‐healable helical‐structured conductors fabricated through shape‐memory effect. Important applications multifunctional in physiological motion detection, gesture recognition, circuit connection demonstrated. This concept creates opportunities for construction high‐performance wearable textiles.

Language: Английский

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Kernmantle structured stretchable strain sensors for biomechanical sensing in amphibious environments

Carbon, Journal Year: 2024, Volume and Issue: 222, P. 118918 - 118918

Published: Feb. 9, 2024

Language: Английский

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Innovations in spider silk‐inspired artificial gel fibers: Methods, properties, strengthening, functionality, and challenges

SusMat, Journal Year: 2024, Volume and Issue: 4(3)

Published: May 27, 2024

Abstract Spider silk, possessing exceptional combination properties, is classified as a bio‐gel fiber. Thereby, it serves valuable origin of inspiration for the advancement various artificial gel fiber materials with distinct functionalities. Gel fibers exhibit promising potential utilization in diverse fields, including smart textiles, muscle, tissue engineering, and strain sensing. However, there are still numerous challenges improving performance functionalizing applications spider silk‐inspired fibers. Thus, to gain penetrating insight into bioinspired fibers, this review provided comprehensive overview encompassing three key aspects: fundamental design concepts implementing strategies properties strengthening functionalities application prospects In particular, multiple toughening mechanisms were introduced at micro, nano, molecular‐level structures Additionally, existing summarized. This aims offer significant guidance development inspire further research field high‐performance

Language: Английский

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Recent development of conductive polymer composite‐based strain sensors

Journal of Polymer Science, Journal Year: 2023, Volume and Issue: 61(24), P. 3167 - 3185

Published: July 29, 2023

Abstract In recent decades, flexible and wearable strain sensor has shown promising application prospects in human motion detection, medical rehabilitation, human‐computer interface, etc. Conductive polymer composites (CPCs) composed of conductive fillers elastic polymers demonstrate the merits excellent flexibility, high stretchability, good tensile recovery. They are usually used as sensors with large working range sensitivity. This review introduces detail preparation, morphologies sensing performance different CPC including one‐dimensional fibers, two‐dimensional films, three‐dimensional foams hydrogels. CPCs structures show their unique advantages reducing percolation threshold and/or improving performance. The multi‐functionalities extended applications also reviewed. Finally, we summarize current challenges outlook future development sensors.

Language: Английский

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Stretchable hybrid platform‐enabled interactive perception of strain sensing and visualization

SmartMat, Journal Year: 2023, Volume and Issue: 5(4)

Published: Oct. 11, 2023

Abstract Human–machine interactive platforms that can sense mechanical stimuli visually and digitally are highly desirable. However, most existing devices cannot satisfy the demands of tactile feedback extended integration. Inspired by mechanoluminescence (ML) function cephalopod skin sensitive perception microcracked slit‐organs, a bioinspired stretchable platform is developed designing poly(styrene‐block‐butadiene‐block‐styrene)/fluorescent molecule (SFM) composite followed in situ polymerization pyrrole (Py) deposition carbon nanotubes (CNTs), which possesses simple multilayered structure quantitatively senses applied strains via variations digital electrical resistance visual fluorescence intensity. Using strain‐dependent microstructures derived from synergistic interactions rigid PPy/CNTs functional layer SFM, SFM/PPy/CNTs‐based exhibit excellent strain‐sensing performance manifested high gauge factor (GF = 2.64 × 10 4 ), wide sensing range (~270%), fast response/recovery time (~155/195 ms), stability (~15,000 cycles at 40% strain), ML characteristics under ultraviolet illumination. Benefiting novel fusion data images, important applications, including detection wrist pulses human motions, information dual‐encryption, demonstrated. This study demonstrates superiority advanced structures materials for realizing superior applications wearable electronics.

Language: Английский

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