Highly Stretchable, Self-Healing, and Sensitive E-Skins at −78 °C for Polar Exploration

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(15), P. 10699 - 10707

Published: March 22, 2024

Ultralow temperature-tolerant electronic skins (e-skins) can endow polar robots with tactile feedback for exploring in extremely cold environments. However, it remains a challenge to develop e-skins that enable sensitive touch sensation and self-healing at ultralow temperatures. Herein, we describe the development of robotic hand e-skin stretch, self-heal, sense temperatures as low -78 °C. The elastomeric substrate this is based on poly(dimethylsiloxane) supramolecular polymers multistrength dynamic H-bonds, particular quadruple H-bonding motifs (UPy). structure-performance relationship elastomer investigated. results show elastomers side-chain UPy units exhibit higher stretchability (∼3257%) efficiency compared those main-chain units. This attributed lower binding energy variation potential well. Based man-made electric ink, usage °C constructed precisely shape objects specific symbols, its completely self-recover after being damaged. findings study contribute concept using hands environments make human involvement limited, dangerous, or impossible.

Language: Английский

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Biopolymer and Biomimetic Techniques for Triboelectric Nanogenerators (TENGs)

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

Published: Aug. 6, 2024

Triboelectric nanogenerators (TENGs) play a crucial role in attaining sustainable energy for various wearable devices. Polymer materials are essential components of TENGs. Biopolymers suitable TENGs because their degradability, natural sourcing, and cost-effectiveness. Herein, the latest progress commonly used biopolymers well-designed biomimetic techniques TENG is summarized. The applications rubber, polysaccharides, protein-based biopolymers, other common synthetic technology summarized detail. Each biopolymer discussed based on its electrification capability, polarity variations, specific functionalities as active functional layers Important strategies related also to guide structural design TENG. In future, study triboelectric may focus exploring alternative candidates, enhancing charge density, expanding functionality. Various possible biopolymer-based proposed this review. By applying methods devices, fields healthcare, environmental monitoring, wearable/implantable electronics can be further promoted.

Language: Английский

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Recent Progress in Self-Healing Triboelectric Nanogenerators for Artificial Skins

Biosensors, Journal Year: 2025, Volume and Issue: 15(1), P. 37 - 37

Published: Jan. 10, 2025

Self-healing triboelectric nanogenerators (TENGs), which incorporate self-healing materials capable of recovering their structural and functional properties after damage, are transforming the field artificial skin by effectively addressing challenges associated with mechanical damage degradation. This review explores latest advancements in TENGs, emphasizing material innovations, designs, practical applications. Key include dynamic covalent polymers, supramolecular elastomers, ion-conductive hydrogels, provide rapid recovery, superior strength, stable electrical performance. Innovative configurations, such as layered encapsulated optimize efficiency enhance environmental adaptability. Applications span healthcare, human-machine interfaces, wearable electronics, demonstrating immense potential for tactile sensing energy harvesting. Despite significant progress, remain scalability, long-term durability, multifunctional integration. Future research should focus on advanced development, scalable fabrication, intelligent system integration to unlock full TENGs. provides a comprehensive overview current achievements future directions, underscoring pivotal role TENGs technology.

Language: Английский

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A human-skin inspired self-healing, anti-bacterial and high performance triboelectric nanogenerator for self-powered multifunctional electronic skin

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 495, P. 153601 - 153601

Published: July 4, 2024

Language: Английский

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Advanced flexible self-healing triboelectric nanogenerators for applications in complex environments

Nanoscale, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

With the advent of smart era, demand for clean energy is rising, and flexible triboelectric nanogenerators (F-TENGs) based on elastomers have garnered significant attention. Based principles electrostatic induction coupling, F-TENGs can convert mechanical motion into electrical are widely utilized in wearable devices blue energy. offer a simple design, ease manufacturing, usage scenarios. However, several weaknesses still limit their development. For example, F-TENG materials cannot recover from fatigue damage prone to output performance degradation under frequent friction or complex external conditions, leading failure. To address these issues, researchers explored use self-healable polymer-based layers electrodes. This review will provide detailed summary key scientific technological challenges faced by harsh environments, including ambient, high low temperatures, humidity, strong acids bases. Furthermore, research progress addressing issues future development also be presented explored. paper aims valuable insights guidance in-depth broad applications TENGs.

Language: Английский

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Aramid Triboelectric Materials: Opportunities for Self‐Powered Wearable Personal Protective Electronics

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

Published: Aug. 23, 2024

Abstract The seamless integration of advanced triboelectric nanogenerators with fiber material has propelled the rapid advancement intelligent wearable electronics. overheating and mechanical abrasion associated prolonged operation poses a significant challenge for conventional fiber‐based materials. Aramid fibers, characterized by high thermal stability, ultra‐high strength, excellent insulating properties, can effectively compensate limitations However, intrinsic advantages aramid materials their general structural design strategies have not yet to be comprehensively elucidated. In this review, synthesis methods development history in recent years are summarized. Importantly, unique potential fibers as systematically discussed, particularly regarding high‐temperature resistance, electrical insulation. Furthermore, latest advancements performance modulation presented. self‐powered electronics warning, impact monitoring, human energy harvesting Finally, challenges opportunities facing future discussed.

Language: Английский

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Fully Biobased Degradable Vitrimer Foams: Mechanical Robust, Catalyst-Free Self-Healing, and Shape Memory Properties

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(5), P. 6523 - 6532

Published: Jan. 26, 2024

Thermosetting foams have limited capabilities for recycling, reprocessing, or reshaping. Moreover, most of the foaming agents currently employed in these are derived from organic compounds sourced petrochemicals, thereby posing a significant environmental threat due to heightened pollution. To solve problems, fully biobased degradable vitrimer foam (EPC-X) was fabricated using an environmentally friendly all-in-one strategy by cross-linking epoxidized malepimaric anhydride (EMPA), 1,5-diaminopentane (PDA), and carbamate (PDAC) as latent curing-blowing agent. our delight, exhibit excellent mechanical properties (2.86 ± 0.11 MPa compressive strength) owing their unique rigid rosin backbone networks. The presence dynamic β-hydroxy ester bonds self-catalytic behavior tertiary amine groups facilitate network rearrangement without requiring additional catalysts, resulting development EPC-X with rapid self-healing shape memory properties. could support weight 500 g (approximately 562 times its own mass). high-performance can also be easily degraded ethanolamine (EA) NaOH solution under mild conditions. Such design offers alternative approach developing superior thermal stimuli-responsive thermosetting foams.

Language: Английский

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Self-healing materials for flexible and stretchable electronics

Materials Today Physics, Journal Year: 2024, Volume and Issue: 44, P. 101448 - 101448

Published: May 1, 2024

Language: Английский

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Biomass and Transparent Supramolecular Elastomers for Green Electronics Enabled by the Controlled Growth and Self‐Assembly of Dynamic Polymer Networks

Small, Journal Year: 2024, Volume and Issue: 20(45)

Published: July 18, 2024

Determining the optimal method for preparing supramolecular materials remains a profound challenge. This process requires combination of renewable raw to create with multiple functions and properties, including simple fabrication, sustainability, dynamic nature, good toughness, transparency. In this work, strategy is presented toughening networks based on solid-phase chain extension. environmentally friendly. addition, series biobased elastomers are designed prepared adjustable performance characteristics. can significantly improve transparency, tensile strength, toughness synthesized elastomer. The have great ductility, repairability, recyclability, they show adhesion dielectric properties. A ionic skin assembled from these elastomers. Assembled sensitively detect external stimuli (such as stretching, bending, compression, or temperature changes) monitor human movement. conductive layers both obtained materials. research provides novel molecular design approaches material selection methods promoting development green electronic devices

Language: Английский

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Self-repairing thermoplastic polyurethane-based triboelectric nanogenerator with molybdenum disulfide charge-trapping for advanced wearable devices

Nano Energy, Journal Year: 2024, Volume and Issue: 127, P. 109714 - 109714

Published: May 11, 2024

Language: Английский

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