Non-covalently crosslinked networks MXene-doped poly(eutectic) conductive elastomers with antimicrobial, self-healing, tunable mechanical properties, and wide temperature durability

Ceramics International, Journal Year: 2024, Volume and Issue: 50(18), P. 32853 - 32867

Published: June 12, 2024

Language: Английский

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A stretchable and self-powered strain sensor with elastomeric electret

Smart Materials and Structures, Journal Year: 2024, Volume and Issue: 33(8), P. 085033 - 085033

Published: July 24, 2024

Abstract Stretchable deformation sensors play an important role in the perception and autonomy of soft robots. While various have been reported, mechanical sensor with self-powered capability stretchability to suit extreme environment is urgently required. In this study, a stretchable, self-powered, sensitivity adjustable, long-term stability strain based on stretchable electret researched for monitoring. This composed dielectric elastomer designed elastic modulus gradient elastomeric Nano-particles. The electro-mechanical optimized by multi-objective optimization approach. exhibits capability, (tensile from 0% 20%), tunable (optimized 5.7 5.9 pC mm −1 ), stability, where electromechanical performance remains stable after 8000 stretching cycles. feasibility its autonomous sensing which promotes wide range potential application robotics demonstrated. gradient-induced net charge design significantly broadened applications large low-attached stiffness.

Language: Английский

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Multiperformance Fully Physically Cross-Linked Organogel for All-Climate Wireless Human Motion Sensors and Water Writing Paper

ACS Applied Polymer Materials, Journal Year: 2024, Volume and Issue: 6(20), P. 12808 - 12822

Published: Oct. 12, 2024

Conductive organogels are considered ideal materials for the fabrication of flexible wearable electronic devices. However, simultaneous realization epidermal devices with excellent self-healing, self-adhesion, multienvironment tolerance, and superior sensing performance remains a formidable challenge. In this study, multiperformance conductive organogel was synthesized via one-step photopolymerization acrylic acid (AA) acrylamide (AAm) in an H2O/glycerol (Gly) solution comprising gelatin Al3+ ions, utilizing zinc dimethacrylate (ZDMA) containing Zn2+-carboxyl coordination bonds as ionic cross-linker. The physical cross-linked gelatin/P(AA-co-AAm-co-ZDMA)/Al3+ formed through synergistic effects multiple hydrogen bonding, dual bonds, entanglement among diverse macromolecular chains. prepared exhibited toughness (387 kPa), significant self-healing ability (633% strain healed organogel), prominent moisture retention (weight 80% after 15 days), remarkable long-term temperature resistance. Without sealed packaging, maintained mechanical properties even exposure to different temperatures (−30 °C, 20 50 °C) durations 15, 7 days, respectively. sensor based on sensitivity (gauge factor, GF = 3.36), outstanding signal stability (600 cycles at 60% strain), precise monitoring underwater motion. wireless heart system integrated affixed left chest volunteers real-time detection minute human electrocardiograph (ECG) signals. More notably, pronounced alteration transmittance upon water glycerol, rendering it suitable application reusable writing paper recording erasing information. multifunctional exhibits great promise development future electronics enhanced environmental adaptability.

Language: Английский

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Flexible Magnetoelectric Sensors with Enhanced Output Performance and Response Time for Parking Spaces Detection Systems

Sensors and Actuators A Physical, Journal Year: 2024, Volume and Issue: unknown, P. 116161 - 116161

Published: Dec. 1, 2024

Language: Английский

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