Bioinspired Stretchable Strain Sensor with High Linearity and Superhydrophobicity for Underwater Applications

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Окт. 4, 2024

Abstract Flexible strain sensors are of great significance in health monitoring, wearable electronic devices, intelligent robot sensing, and other fields. Most the reported works focus on enhancement sensitivity or working range, while linearity is ignored exhibits strong nonlinearity. Conflict among performances remains a serious challenge for development flexible sensors. Herein, inspired by architecture butterfly's wings, sensor with double conductive layers wrinkles/holes structures proposed. The fabricated shows high >0.98 over full range 120%, up to 0.999 within 0%–30%. Apart from that, also presents 8.28, stability 40 000 cycles when subjected full‐scale strain, as well water contact angle >167.4°. Meanwhile, strains low 0.075% can be identified, maximum frequency Hz responded sensor. It demonstrated that capable enabling grippers sense monitor motions underwater vehicles, indicating its greater potential diverse applications, such human–machine interaction, marine environmental protection, biological research.

Язык: Английский

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Breathable Ultrathin Film Sensors Based on Nanomesh Reinforced Anti‐Dehydrating Organohydrogels for Motion Monitoring

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Сен. 6, 2024

Abstract Flexible hydrogel film sensors have great advantages as human–machine interfaces for conformal contact with bio‐tissues, but suffer from weakness and dehydration, compromising flexibility performance. Here, a breathable, highly stretchable, anti‐dehydrating ultrathin organohydrogel skin‐attachable strain sensor long‐term motion monitoring is developed. An electrospun TPU (eTPU) nanomesh hidden strength used skeleton to host in situ free radical polymerization of 2‐acrylamido‐2‐methyl propane sulfonic acid (AMPS) acrylamide (AAm) form an interpenetrating double network glycerol water solvent. Extensive hydrogen bonding between eTPU P(AMPS‐ co ‐AAm) yields (≈200 µm) synergetic deformation energy dissipation upon stretching, leading record‐high stretchability up 920%, fracture toughness 20.14 MJ m −3 , 10 000 J −2 robustness over 4000 notched stretching cylcles 50% strain. The binary glycerol/water solvent imparts excellent anti‐dehydration at room temperature d, stable sensory performance −20 60 °C. With high vapor transmission rate 1.3 kg d −1 the ensures comfortable skin continuous knee flexion throughout day signals. These are promising wearable applications.

Язык: Английский

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Hierarchical Crack Engineering-Enabled High-Linearity and Ultrasensitive Strain Sensors

ACS Sensors, Год журнала: 2025, Номер unknown

Опубликована: Март 5, 2025

Growing imperative for intelligent transformation of electro-ionic actuators in soft robotics has necessitated self-perception accurately mapping their nonlinear dynamic responses. Despite the promise integrating crack-based strain sensors such a purpose, significant challenges remain controlling crack propagation to prevent induction through-cracks, resulting lower sensitivity, linearity, and poor detection limits. Herein, we propose hierarchical synergistic enhancement structure by incorporating conductive poly(pyrrole)-coated polystyrene nanospheres Ti3C2Tx MXene induce cross-long sensing cracks via point-to-plane contacts, along with silver nanowires positively engineering networked microcracks linearity tuning. The prepared microstrain sensor achieves high (GF = 152.4, R2 0.99) regulation within ∼6% range, ultralow limit 0.02%, ultrafast response/recovery time 31 ms/32 ms under 0.2%. Notably, state-of-the-art performance detecting minimal changes down one millionth, i.e., ∼1 microstrain, been demonstrated voiceprint recognition, while maintaining superior measurement capability long-term stability mechanical vibrations up 100 Hz response 5 ms. Moreover, introduction an adhesive cross-linking layer facilitates robust bonding between actuator structure, enabling real-time tracking actuation without structural interference resistance change resolution 0.01%, providing insights empowering integrated perception intelligence.

Язык: Английский

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Mussel-inspired breathable and antibacterial strain sensors based on polyurethane fibrous membrane for human motion monitoring, human-machine interaction, and acupoint photothermal therapy

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 160397 - 160397

Опубликована: Фев. 1, 2025

Язык: Английский

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Janus Textile: Advancing Wearable Technology for Autonomous Sweat Management and Beyond

Small, Год журнала: 2025, Номер unknown

Опубликована: Март 5, 2025

To alleviate the discomfort caused by excessive sweating, there is a growing emphasis on developing wearable textiles that can evacuate sweat autonomously. These advanced fabrics, unlike their absorbent and retention-prone predecessors, harness Janus structure-distinguished its asymmetric wettability-to facilitate one-way transport of liquid. This unique characteristic has significant potential in addressing issues related to bodily moisture propelling realm smart wearables. review offers comprehensive overview advancements Janus-structured within field, delving into mechanisms behind unidirectional liquid transport, which rely chemical gradient curvature strategies, alongside methodologies for achieving wettability. It further spotlights multifaceted applications Janus-based wearables, including thermal management, wound care, analysis. In addition examining existing hurdles, also explores avenues future innovation, envisioning new era tailored personalized comfort health monitoring capabilities.

Язык: Английский

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Amphibious-adaptive superhydrophobic fabric with bi-conductive coupling for robust human motion detection

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 161800 - 161800

Опубликована: Март 1, 2025

Язык: Английский

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Crack propagation controlling via sliding cyclodextrin for high-density sensor array

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 161769 - 161769

Опубликована: Март 1, 2025

Язык: Английский

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Advances in Crack-Based Strain Sensors on Stretchable Polymeric Substrates: Crack Mechanisms, Geometrical Factors, and Functional Structures

Polymers, Год журнала: 2025, Номер 17(7), С. 941 - 941

Опубликована: Март 30, 2025

This review focuses on deepening the structural understanding of crack-based strain sensors (CBSS) stretchable and flexible polymeric substrates promoting sensor performance optimization. CBSS are cutting-edge devices that purposely incorporate cracks into their functional elements, thereby achieving high sensitivity, wide working ranges, rapid response times. To optimize CBSS, systematic research characteristics is essential. comprehensively analyzes key factors determining such as crack mechanism, geometrical factors, structures proposes optimization strategies grounded in these insights. In addition, we explore potential numerical analysis machine learning to offer novel perspectives for Following this, introduce various applications CBSS. Finally, discuss current challenges future prospects research, providing a roadmap next-generation technologies.

Язык: Английский

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Building a multi-performance wearable rubber-based strain sensor: for human motion capture, optical heating and underwater sensing

Carbon, Год журнала: 2025, Номер unknown, С. 120274 - 120274

Опубликована: Апрель 1, 2025

Язык: Английский

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Superhydrophobic stretchable sensors based on interfacially self-assembled carbon nanotube film for self-sensing drag-reduction shipping

RSC Advances, Год журнала: 2024, Номер 14(36), С. 26505 - 26515

Опубликована: Янв. 1, 2024

Superhydrophobic stretchable sensors with excellent robustness and aquatic sensing performance were developed through a facile efficient transferring strategy using interfacially self-assembled CNT film.

Язык: Английский

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