Multifunctional PVA/PNIPAM conductive hydrogel sensors enabled human-machine interaction intelligent rehabilitation training

Advanced Composites and Hybrid Materials, Journal Year: 2024, Volume and Issue: 7(6)

Published: Nov. 18, 2024

Language: Английский

---

A high-sensitivity and multi-response magnetic nanofiber-aerogel sensor with directionally aligned porous structure based on triple network for interactive human–machine interfaces

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 497, P. 154441 - 154441

Published: July 31, 2024

Language: Английский

---

A Highly Sensitive, Conductive, and Flexible Hydrogel Sponge as a Discriminable Multimodal Sensor for Deep‐Learning‐Assisted Gesture Language Recognition

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 21, 2024

Abstract Flexible multimodal sensors have gained increasing popularity for applications in healthcare and extreme environment operations owing to their all‐around environmental perception data acquisition capabilities. However, fabricating a magnetism‐mechanics‐humidity sensor that possesses high sensitivity without signal overlapping while facile methodology remains great challenge. Herein, highly sensitive, conductive, flexible hydrogel sponge with discriminable magnetism, mechanics, humidity sensing capability is proposed, which shows stable pore size (19.30 µm) satisfactory mechanical properties based on the synergistic hydrogen bonding among sodium alginate, poly(vinyl alcohol) glycerol. The proposed can not only display favorable ability rapid response/recovery time (2.5/4 s) but also possess enhanced sensitivities (a gauge factor of 0.46 T −1 magnetic field, −1.16 kPa pressure), superior stability durability (over 8000 cycles). Benefiting from separated capacitive resistive response signals, precisely distinguish magnetic, mechanical, stimuli cross‐talk. Further, arrays assisted by deep learning algorithm are developed realize gesture language recognition accuracy 99.17%. It be believed this high‐performance will good prospects future soft electronics human‐machine interaction systems.

Language: Английский

---

Electrospun nanofibers and their application as sensors for healthcare

Frontiers in Bioengineering and Biotechnology, Journal Year: 2025, Volume and Issue: 13

Published: March 20, 2025

Electrospinning is a type of electrohydrodynamics that utilizes high-voltage electrostatic force to stretch polymer solution into nanofibers under the influence an electric field, with most fibers falling onto collector. This technology favored by researchers across various fields due its simple and inexpensive device for producing in straightforward manner. Nanofibers prepared through electrospinning have high specific surface area porosity. shows extensive potential, especially within biomedical sensors. article provides systematic overview factors influencing electrospinning, parameters process, types electrospun nanofibers, applications field sensors, including wearable pressure glucose The paper summarizes research progress this points out direction development technology, as well future challenges.

Language: Английский

---

Electrospun Multifunctional Nanofibers for Advanced Wearable Sensors

Talanta, Journal Year: 2024, Volume and Issue: 283, P. 127085 - 127085

Published: Oct. 22, 2024

Language: Английский

---

High-Performance Flexible Sensor with Sensitive Strain/Magnetic Dual-Mode Sensing Characteristics Based on Sodium Alginate and Carboxymethyl Cellulose

Gels, Journal Year: 2024, Volume and Issue: 10(9), P. 555 - 555

Published: Aug. 27, 2024

Flexible sensors can measure various stimuli owing to their exceptional flexibility, stretchability, and electrical properties. However, the integration of multiple into a single sensor for measurement is challenging. To address this issue, developed in study utilizes natural biopolymers sodium alginate carboxymethyl cellulose construct dual interpenetrating network, This results flexible porous sponge that exhibits dual-modal response strain magnetic stimulation. The dual-mode achieved maximum tensile strength 429 kPa elongation at break 24.7%. It also exhibited rapid times reliable stability under both stimuli. foam intended use as wearable electronic device monitoring joint movements body. provides swift stable sensing mechanical arising from activities, such stretching, compression, bending. Furthermore, generates opposing signals stimulation, enabling real-time decoupling different employed simple environmentally friendly manufacturing method sensor. Because its remarkable performance, it has significant potential application smart electronics artificial electroskins.

Language: Английский

---

Oriented Alginate-Poly(vinyl alcohol) Electrospun Nanofibers for Multimodal Sensing and Gesture Language Recognition

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(44), P. 61381 - 61394

Published: Oct. 29, 2024

Flexible nanofiber sensors have gained substantial attention in extending application scenarios owing to their desirable lightweight, comfort, and breathability. Nevertheless, disorder uneven dimension issues of nanofibers are the leading concerns multifunctional response, which often leads erratic response signals as well poor linearity. In this work, a high-performance oriented film with three-dimensional network consisting alginate sodium, poly(vinyl alcohol), poly(ethylene oxide) was successfully fabricated by controllable directional electrospinning technique. The main properties capable being regulated intentionally varying temperature, collector rotation speed, polymer concentrations. Based on favorable structure orientation, displays satisfied biodegradability high mechanical strength (575.1 MPa). Being integrated modified magnetic particles, not only display fast sensitivity, exceptional recoverability fields but also show sensitivities reliable long-term durability under excitations. As wearable sensor, it can accurately perceive physiological generated human body real-time. Furthermore, assistance convolutional neural model, gesture language recognition system is developed integrating multiple realize accuracy (∼99.08%). This study provides feasible strategy manufacture multimodal for human-machine interaction applications.

Language: Английский

---

Multifunctional PVA/PNIPAM conductive hydrogel sensors enabled Human-Machine interaction intelligent rehabilitation training

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 8, 2024

Hydrogels are regarded as an ideal medium for human-machine interaction (HMI) due to their adjustable modulus and flexibility, enabling seamless with smart devices. However, in the field of medical rehabilitation, most hydrogel-based sensors simply used detect motion signals fragments rarely applied help patients rehabilitation training improve efficiency doctors' diagnosis. This is unstable sensing properties poor mechanical hydrogels. The durability greatly limits application sensors. Here, a conductive hydrogel sensor visual temperature sensitivity good (300% strain, breaking stress 0.19 MPa) fabricated by introducing polyvinyl alcohol (PVA)-borax system combined freeze-thaw physical regulation strategy. PVA/PNIPAM/PEDOT: PSS (PPP) hydrogels possess rapid response/recovery time (200 ms/200 ms), low detection limit 1% stability durability. Furthermore, integrating LabVIEW circuit program wireless transmission technology, we have developed advanced intelligent HMI capable monitoring, training, remote

Language: Английский

---

From waste to Innovation: Advancing the circular economy with nanofibers using recycled polymers and natural polymers from renewable or waste residues

Journal of Industrial and Engineering Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 1, 2024

Language: Английский

---