High-performance fibrous strain sensor with synergistic sensing layer for human motion recognition and robot control

Advanced Composites and Hybrid Materials, Journal Year: 2023, Volume and Issue: 6(4)

Published: June 17, 2023

Language: Английский

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Human touch sensation-inspired, ultrawide-sensing-range, and high-robustness flexible piezoresistive sensor based on CB/MXene/SR/fiber nanocomposites for wearable electronics

Composite Structures, Journal Year: 2023, Volume and Issue: 321, P. 117329 - 117329

Published: July 6, 2023

Language: Английский

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Flexible Capacitive Pressure Sensor with High Sensitivity and Wide Range Based on a Cheetah Leg Structure via 3D Printing

ACS Applied Materials & Interfaces, Journal Year: 2023, Volume and Issue: 15(39), P. 46347 - 46356

Published: Sept. 21, 2023

Flexible pressure sensors can be used in human-computer interaction and wearable electronic devices, but one main challenge is to fabricate capacitive with a wide range high sensitivity. Here, we designed sensor based on bionic cheetah leg microstructure, validated the benefits of microstructure design, optimized structural feature parameters using 3D printing technology. The inspired by shape has sensitivity (0.75 kPa-1), linear sensing (0-280 kPa), fast response time roughly 80 ms, outstanding durability (24,000 cycles). Furthermore, recognize finger-operated mouse, monitor human motion, transmit Morse code information. This work demonstrates that hold considerable promise for use devices.

Language: Английский

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Dual bionic-inspired stretchable strain sensor based on graphene/multi-walled carbon nanotubes/polymer composites for electronic skin

Composites Part A Applied Science and Manufacturing, Journal Year: 2024, Volume and Issue: 179, P. 108043 - 108043

Published: Jan. 22, 2024

Language: Английский

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Bamboo-Inspired, Environmental Friendly PDMS/Plant Fiber Composites-Based Capacitive Flexible Pressure Sensors by Origami for Human–Machine Interaction

ACS Sustainable Chemistry & Engineering, Journal Year: 2024, Volume and Issue: 12(12), P. 4835 - 4845

Published: March 8, 2024

With the widespread adoption of green and sustainable development concepts, enhancing sensing performance flexible pressure sensors while reducing manufacturing costs environmental pollution has emerged as a pressing research issue. Drawing inspiration from bamboo, naturally occurring plant, we utilized virgin bamboo pulp raw material for producing draw paper. The resulting cylinder structure serves dielectric layer. We propose an extremely low-cost, user-friendly, origami method fabricating paper-based sensors. structural parameters sensor were thoroughly investigated optimized through finite element simulations practical experiments. Notable features include high sensitivity (1.96 kPa–1 within 0–50 kPa), low detection limit (2 Pa), wide range (0–500 rapid response recovery times (40 45 ms, respectively), reliable durability stability (∼5000 cycles). Experimental results demonstrate successful application these in areas such human motion, health monitoring, human–computer interaction. potential applications extend to wearables, smart healthcare, human–machine collaboration, electronic skin (e-skin).

Language: Английский

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3D dual-mode tactile sensor with decoupled temperature and pressure sensing: Toward biological skins for wearable devices and smart robotics

Sensors and Actuators B Chemical, Journal Year: 2024, Volume and Issue: 404, P. 135255 - 135255

Published: Jan. 3, 2024

Language: Английский

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Bioinspired Flexible Hydrogelation with Programmable Properties for Tactile Sensing

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(29)

Published: April 28, 2024

Abstract Tactile sensing requires integrated detection platforms with distributed and highly sensitive haptic capabilities along biocompatibility, aiming to replicate the physiological functions of human skin empower industrial robotic prosthetic wearers detect tactile information. In this regard, short peptide‐based self‐assembled hydrogels show promising potential act as bioinspired supramolecular substrates for developing sensors showing biocompatibility biodegradability. However, intrinsic difficulty modulate mechanical properties severely restricts their extensive employment. Herein, by controlling self‐assembly 9‐fluorenylmethoxycarbonyl‐modifid diphenylalanine (Fmoc‐FF) through introduction polyethylene glycol diacrylate (PEGDA), wider nanoribbons are achieved untwisting from well‐established thinner nanofibers, can be enhanced 10‐fold, supplying encapsulating substrate sensing. Furthermore, doping poly(3,4‐ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) 3,4‐dihydroxy‐ l ‐phenylalanine (Fmoc‐DOPA), Fmoc‐FF engineered conductive adhesive, providing units adhesive layer applications. Therefore, integration these modules results in peptide hydrogelation‐based sensors, high sensitivity sustainable responses The findings establish feasibility programmable adjustable features

Language: Английский

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Capacitive Sensors with Hybrid Dielectric Structures and High Sensitivity over a Wide Pressure Range for Monitoring Biosignals

ACS Applied Materials & Interfaces, Journal Year: 2023, Volume and Issue: 15(4), P. 6217 - 6227

Published: Jan. 24, 2023

Various dielectrics with porous structures or high dielectric constants have been designed to improve the sensitivity of capacitive pressure sensors (CPSs), but this strategy has only effective for low-pressure range. Here, a hierarchical gradient hybrid dielectric, composed low-permittivity (low-k) polydimethylsiloxane (PDMS) foam low Young's modulus (low-E) and high-permittivity (high-k) MWCNT/PDMS (high-E), is develop CPS monitoring biosignals over wide force The foam-like structure permittivity (low-k + high-k) facilitated sensitivity, while (low-E high-E) contributes broadening sensing With structure, flexible sensor achieves an enhanced 2.155 kPa-1, range (up 500 kPa), minimum detection limit (50 Pa), excellent durability (>2500 cycles). As demonstration, venous thrombosis simulation smart insole system are established monitor blood clots plantar pressures, respectively, which reveal potential applications in wearable medicine, sports health prediction, athlete training, equipment design.

Language: Английский

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3D printing of soft and porous composite pressure sensor with monotonic and positive resistance response

Composites Science and Technology, Journal Year: 2023, Volume and Issue: 241, P. 110126 - 110126

Published: June 20, 2023

Language: Английский

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Wavy-shaped flexible capacitive strain sensor for multiple deformations recognition

Sensors and Actuators A Physical, Journal Year: 2024, Volume and Issue: 366, P. 115025 - 115025

Published: Jan. 11, 2024

Language: Английский

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