Carbohydrate Polymers, Journal Year: 2024, Volume and Issue: 338, P. 122219 - 122219
Published: April 30, 2024
Language: Английский
Nano Letters, Journal Year: 2024, Volume and Issue: 24(10), P. 3273 - 3281
Published: March 1, 2024
As intelligent technology surges forward, wearable electronics have emerged as versatile tools for monitoring health and sensing our surroundings. Among these advancements, porous triboelectric materials garnered significant attention their lightness. However, face the challenge of improving structural stability to further enhance accuracy sensors. In this study, a lightweight strong cellulosic material is designed by cell wall nanoengineering. By tailoring structure, shows high mechanical strength 51.8 MPa. The self-powered sensor constructed has sensitivity 33.61 kPa–1, fast response time 36 ms, excellent pressure detection durability. Notably, still enables performance after exposure 200 °C achieves real-time feedback human motion, thereby demonstrating great potential in field electronic devices.
Language: Английский
Citations
57
Nano Letters, Journal Year: 2024, Volume and Issue: 24(12), P. 3826 - 3834
Published: March 18, 2024
Lightweight, easily processed, and durable polymeric materials play a crucial role in wearable sensor devices. However, achieving simultaneously high strength toughness remains challenge. This study addresses this by utilizing an ion-specific effect to control crystalline domains, enabling the fabrication of triboelectric material with tunable mechanical properties. The dense crystal-domain cross-linking enhances energy dissipation, resulting boasting both tensile (58.0 MPa) (198.8 MJ m–3), alongside remarkable 416.7% fracture elongation 545.0 MPa modulus. Leveraging these properties, is successfully integrated into self-powered devices, real-time feedback on human joint movement. work presents valuable strategy for overcoming strength-toughness trade-off materials, paving way their enhanced applicability broader use diverse sensing applications.
Language: Английский
Citations
43
Nano Energy, Journal Year: 2024, Volume and Issue: 128, P. 109912 - 109912
Published: June 20, 2024
Language: Английский
Citations
42
Nano-Micro Letters, Journal Year: 2024, Volume and Issue: 16(1)
Published: April 9, 2024
Rapid advancements in flexible electronics technology propel soft tactile sensing devices toward high-level biointegration, even attaining perception capabilities surpassing human skin. However, the inherent mechanical mismatch resulting from deficient biomimetic properties of materials poses a challenge to application wearable human-machine interaction. Inspired by innate biphasic structure subcutaneous tissue, this study discloses skin-compliant iontronic triboelectric gel via phase separation induced competitive hydrogen bonding. Solvent-nonsolvent interactions are used construct bonding systems trigger separation, and soft-hard alternating phase-locked confers with Young's modulus (6.8-281.9 kPa) high tensile (880%) compatible The abundance reactive hydroxyl groups gives excellent tribopositive self-adhesive (peel strength > 70 N m
Language: Английский
Citations
38
Nano-Micro Letters, Journal Year: 2024, Volume and Issue: 16(1)
Published: May 31, 2024
Abstract The rapid development of the Internet Things and artificial intelligence technologies has increased need for wearable, portable, self-powered flexible sensing devices. Triboelectric nanogenerators (TENGs) based on gel materials (with excellent conductivity, mechanical tunability, environmental adaptability, biocompatibility) are considered an advanced approach developing a new generation sensors. This review comprehensively summarizes recent advances in gel-based TENGs sensors, covering their principles, properties, applications. Based requirements working mechanism characteristic advantages gels introduced. Design strategies performance optimization hydrogel-, organogel-, aerogel-based systematically summarized. In addition, applications human motion sensing, tactile health monitoring, human–machine interaction, other related fields Finally, challenges discussed, feasible proposed to guide future research.
Language: Английский
Citations
38
Nano Letters, Journal Year: 2024, Volume and Issue: 24(23), P. 7125 - 7133
Published: May 29, 2024
Wearable sensors are experiencing vibrant growth in the fields of health monitoring systems and human motion detection, with comfort becoming a significant research direction for wearable sensing devices. However, weak moisture-wicking capability sensor materials leads to liquid retention, severely restricting sensors. This study employs pattern-guided alignment strategy construct microhill arrays, endowing triboelectric directional capability. Within 2.25 s, can quickly directionally remove droplets, driven by Laplace pressure differences wettability gradient. The exhibit excellent performance, enabling rapid response/recovery (29.1/37.0 ms), thereby achieving real-time online respiration movement states. work addresses long-standing challenge insufficient driving force flexible electronic materials, holding implications enhancing application potential skin
Language: Английский
Citations
30
Nano Letters, Journal Year: 2024, Volume and Issue: 24(25), P. 7809 - 7818
Published: June 14, 2024
Noncontact sensing technology serves as a pivotal medium for seamless data acquisition and intelligent perception in the era of Internet Things (IoT), bringing innovative interactive experiences to wearable human–machine interaction networks. However, pervasive limitations current noncontact devices posed by harsh environmental conditions hinder precision stability signals. In this study, triboelectric nanopaper prepared phase-directed assembly strategy is presented, which possesses low charge transfer mobility (1618 cm2 V–1 s–1) exceptional high-temperature stability. Wearable self-powered sensors constructed from operate stably under high temperatures (200 °C). Furthermore, temperature warning system workers hazardous environments demonstrated, capable nonintrusively identifying harmful thermal stimuli detecting motion status. This research not only establishes technological foundation accurate stable but also promotes sustainable development IoT extreme environments.
Language: Английский
Citations
26
Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown
Published: July 21, 2024
Abstract Self‐healing materials that integrate excellent mechanical properties and high healing efficiency meet the requirements of flexible electronic sensors for flexibility reliability. In field wearable devices, they are great significance improving stability equipment reducing frequency replacement. However, strength often limits their self‐healing ability. When damage occurs, it will hinder microstructural adjustment fluidity material at damaged site, thus negatively affecting activation execution mechanism. this study, a strength‐toughness room‐temperature triboelectric is prepared by dynamic nanoconfinement effect quenching ethanol (referred to as DNCQ strategy). The improves aggregation nanocluster phase, constructed nanoconfined network skillfully balances contradiction between obtained has tensile (27.1 MPa), toughness (97.9 MJ m −3 ), (88.6%). self‐powered pressure distribution sensing array based on can accurately reflect object, which potential application prospects in devices.
Language: Английский
Citations
25
Nano Energy, Journal Year: 2024, Volume and Issue: 124, P. 109472 - 109472
Published: March 8, 2024
Language: Английский
Citations
23
Nano Energy, Journal Year: 2024, Volume and Issue: 124, P. 109449 - 109449
Published: March 6, 2024
Language: Английский
Citations
21