Facile fabrication of micro-nano structure on Polydimethylsiloxane film surface for enhancing material recognition accuracy of machine learning-assisted triboelectric nanogenerator

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161796 - 161796

Published: March 1, 2025

Language: Английский

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A Multielectrode Layout for High Reliability of Flexible Piezoresistive Sensor: One Stimulus Signal to Three Sensing Signals

ACS Sensors, Journal Year: 2024, Volume and Issue: 9(7), P. 3671 - 3679

Published: June 28, 2024

Flexible sensors have developed rapidly due to their great application potential in the intelligent era. However, frequent bending work requirements pose a serious challenge mechanical reliability of flexible sensors. Herein, strategy using new multielectrode layout achieve multiple sensing signals based on one external signal is proposed for first time improve piezoresistive The consists pair interdigital electrodes and bottom electrode. interdigitated are used sense change surface resistance sensor, electrode bulk sensor. As result, without increasing unit area, allows sensor generate three response electrical when an pressure, thus improving Based layout, highly reliable with multilevel porous structure obtained by microwave foaming method template. In working state resistance, has 22.12 kPa–1 sensitivity. Meanwhile, shows 55.17 Furthermore, applied monitor human pulse speech signals, demonstrating its multisignal output characteristics applications electronics. conclusion, expected greatly promote practical

Language: Английский

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Alkylated MXene–Carbon Nanotube/Microfiber Composite Material with Flexible, Superhydrophobic, and Sensing Properties

Materials, Journal Year: 2024, Volume and Issue: 17(18), P. 4499 - 4499

Published: Sept. 13, 2024

Superhydrophobic strain sensors are highly promising for human motion and health monitoring in wet environments. However, the introduction of superhydrophobicity inevitably alters mechanical conductive properties these sensors, affecting sensing performance limiting behavior monitoring. Here, we developed an alkylated MXene-carbon nanotube/microfiber composite material (AMNCM) that is simultaneously flexible, superhydrophobic, senses properties. Comprising a commercially available fabric substrate coated with functional network MXene/multi-walled carbon nanotubes epoxy-silicone oligomers, AMNCM offers high chemical robustness, maintaining conductivity Furthermore, sensor achieves gauge factor up to 51.68 within range 80-100%, exhibits rapid response times (125 ms) long-term stability under cyclic stretching, while also displaying superior direct/indirect anti-fouling capabilities. These position as candidate next-generation wearable devices designed advanced environmental interactions activity

Language: Английский

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Superhydrophobic wearable sensor: fabrication, application, and perspective

Discover Nano, Journal Year: 2024, Volume and Issue: 19(1)

Published: Nov. 8, 2024

Wearable sensors have attracted considerable interest due to their ability detect a variety of information generated by human physiological activities through physical and chemical means. The performance wearable is limited stability, endowing with superhydrophobicity one the means enable them maintain excellent in harsh environments. This review emphasizes imperative progress flexible superhydrophobic for devices. Besides, wettability principle mechanism are briefly introduced propose combination sensors. Next, substrates sensors, including but not to, polydimethylsiloxane, polyurethane, gel, rubber, fabric, described depth, also respective fabrication processes performances. Moreover, utility normal intelligent environment described, highlighting application monitoring signals, such as movement, pulse, vibration, temperature, perspiration, respiration, so on. Finally, this evaluates challenges dilemmas that must be overcome further development improve functional paving way expansion into advanced sensing systems.

Language: Английский

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High-Sensitivity Wearable Multi-Signal Sensor Based on Self-Powered Mxene-Ba

Published: Jan. 1, 2024

Developing high-performance wearable sensors with multi-sensing capabilities for different signals such as temperature, human motion and physiological remains a challenge. In this report, novel catechol functionalization of PVA-CA/Poly(N-acryloyl glycinamide)/MXene hydrogel(PcNA-M) is fabricated by combining the thermos-sensitivity Poly(N-acryloyl glycinamide(PNAGA) hydrogel self-powered properties PVA(Pc)/MXene hydrogel. The mixing ratio PNAGA Pc adjusted to impart resulting PcNA-M good tensile, compression, rebound properties, rapid self-healing temperature sensing properties. addition, conductivity found have contributions from ionic electrical conductivity. To produce forms signal sources, sensor utilized monitor resistive voltage during body movements, switching handwriting motion. exhibits high sensitivity, identifiability, reliability in applications sensors, demonstrates great prospects field low-frequency mechanical energy harvesting. This study opens new possibility multi-signal related

Language: Английский

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Integrated Wearable Collaborative Strain Sensor With Simultaneous Self-Healing and Superhydrophobic Abilities for Stable Sensing Monitoring

Published: Jan. 1, 2024

Language: Английский

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Biobased, Degradable and Directional Porous Carboxymethyl Chitosan/Lignosulfonate Sodium Aerogel-Based Piezoresistive Pressure Sensor with Dual-Conductive Network for Human Motion Detection

Published: Jan. 1, 2024

The rapid growth of wearable electronics, healthcare monitoring, and human-computer interaction has sparked growing interest in flexible piezoresistive pressure sensors, which turn raised considerable concerns about the increasingly serious environmental pollution caused by electronic waste. Herein, a radial inward directional freezing-drying method was proposed to prepare biobased, degradable porous carboxymethyl chitosan/lignosulfonate sodium aerogel with dual-conductive network constructed carboxylated multiwalled carbon nanotubes (C-CNTs) MXene for sensor. Owing synergistic conductive C-CNTs as well structure, sensor exhibited high sensitivity (2.33 kPa-1 0-10 kPa, 1.04 10-31 0.53 31-53 kPa), fast response (response/recovery time 140/60 ms), excellent repeatability (2,000 loading-unloading cycles). Moreover, successfully applied human motion detection, healthy micro-expression identification, speech recognition. In addition, able be completely degraded within 70 h 1 M hydrochloric acid solution, beneficial not only environment protection but also recycling substances. Our findings conceivably stand out new strategy environmentally friendly high-performance will promote further development application electronics.

Language: Английский

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Rise of graphene in novel piezoresistive sensing applications: A review on recent development and prospect

Materials Science and Engineering R Reports, Journal Year: 2024, Volume and Issue: 163, P. 100891 - 100891

Published: Dec. 12, 2024

Language: Английский

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