Liquid Metal Patterning and Unique Properties for Next‐Generation Soft Electronics

Advanced Science, Journal Year: 2023, Volume and Issue: 10(6)

Published: Jan. 15, 2023

Room-temperature liquid metal (LM)-based electronics is expected to bring advancements in future soft owing its conductivity, conformability, stretchability, and biocompatibility. However, various difficulties arise when patterning LM because of rheological features such as fluidity surface tension. Numerous attempts are made overcome these difficulties, resulting LM-patterning methods. An appropriate choice method based on comprehensive understanding necessary fully utilize the unique properties. Therefore, authors aim provide thorough knowledge about methods properties for LM-based electronics. First, essential considerations investigated. Then, methods-serial-patterning, parallel-patterning, intermetallic bond-assisted patterning, molding/microfluidic injection-are categorized Finally, perspectives with provided. They include outstanding biocompatibility, permeability, restorability, recyclability. Also, they areas radio frequency electronics, robots, heterogeneous catalyst. devices permeate daily lives if aforementioned analyzed utilized.

Language: Английский

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High-Strength, Self-Healing, Recyclable, and Catalyst-Free Bio-Based Non-Isocyanate Polyurethane

ACS Sustainable Chemistry & Engineering, Journal Year: 2023, Volume and Issue: 11(15), P. 6100 - 6113

Published: April 5, 2023

Non-isocyanate polyurethanes (NIPUs) from renewable resources have attracted wide attention because of their remarkable benefits to sustainable development and green production. In this work, a strong, self-healing, catalyst-free NIPU (ECMP) was prepared based on the hyperbranched bio-based cyclic carbonate (Ec-MTDA) synthesized through catalytic carbonization 1,8-menthane diamine (MTDA) CO2. The rigid structures ECMP enable improved mechanical properties that high tensile strength up 34.9 MPa can be achieved. Benefiting dynamic transesterification reaction between carbamate hydroxyl groups, presents favorable reprocessing properties, shape memory. Notably, 91% original recovered after self-healing behavior. addition, abundant polar groups provide excellent adhesion for with shear 7.09 MPa. This study provides promising strategy design NIPUs, which broadens applications in printing, furniture, packaging, other industries.

Language: Английский

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Multi‐Modal Melt‐Processing of Birefringent Cellulosic Materials for Eco‐Friendly Anti‐Counterfeiting

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

Published: July 8, 2024

Abstract Ubiquitous anti‐counterfeiting materials with a rapidly rising annual consumption (over 10 m 2 ) can pose serious environmental burden. Biobased cellulosic birefringence offer attractive sustainable alternatives, but their scalable solvent‐free processing remain challenging. Here, dynamic chemical modification strategy is proposed for multi‐modal melt‐processing of birefringent eco‐friendly anti‐counterfeiting. Relying on the thermal‐activated covalent‐locking spatial topological structure preferred oriented cellulose, balances contradiction between strong confinement long‐range ordered structures and molecular motility required entropically‐driven reconstruction. Equipped customizable forms including mold‐pressing, spinning, direct‐ink‐writing, blade‐coating, exhibit wide color gamut, self‐healing efficiency (94.5%), recyclability, biodegradability. Moreover, diversified flexible elements facilitate fabrication compatibility universal techniques, thereby enabling versatile programmable The expected to provide references cellulose promote innovation in industry.

Language: Английский

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Lignocellulose‐Mediated Functionalization of Liquid Metals toward the Frontiers of Multifunctional Materials

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

Published: Nov. 21, 2024

Lignocellulose-mediated liquid metal (LM) composites, as emerging functional materials, show tremendous potential for a variety of applications. The abundant hydroxyl, carboxyl, and other polar groups in lignocellulose facilitate the formation strong chemical bonds with LM surfaces, enhancing wettability adhesion improved interface compatibility. Beyond serving supportive matrix, can be tailored to optimize microstructure adapting them diverse This review comprehensively summarizes fundamental principles recent advancements lignocellulose-mediated highlighting advantages composite fabrication, including facile synthesis, versatile interactions, inherent functionalities. Key modulation strategies LMs innovative synthesis methods functionalized composites are discussed. Furthermore, roles structure-performance relationships these electromagnetic shielding, flexible sensors, energy storage devices systematically summarized. Finally, obstacles prospective pertaining thoroughly scrutinized deliberated upon. is expected provide basic guidance researchers boost popularity applications useful references design state-of-the-art LMs.

Language: Английский

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Liquid Metal–Polymer Conductor-Based Conformal Cyborg Devices

Chemical Reviews, Journal Year: 2024, Volume and Issue: 124(5), P. 2081 - 2137

Published: Feb. 23, 2024

Gallium-based liquid metal (LM) exhibits exceptional properties such as high conductivity and biocompatibility, rendering it highly valuable for the development of conformal bioelectronics. When combined with polymers, metal–polymer conductors (MPC) offer a versatile platform fabricating cyborg devices, enabling functions sensing, restoration, augmentation within human body. This review focuses on synthesis, fabrication, application MPC-based devices. The synthesis functional materials based LM fabrication techniques devices are elucidated. provides comprehensive overview encompassing their applications in sensing diverse signals, therapeutic interventions, augmentation. objective this is to serve resource that bridges gap between potential biomedical applications.

Language: Английский

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Stretchable supramolecular hydrogel with instantaneous self-healing for electromagnetic interference shielding control and sensing

Composites Part B Engineering, Journal Year: 2024, Volume and Issue: 287, P. 111826 - 111826

Published: Sept. 12, 2024

Language: Английский

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Liquid Metal@Silk Fibroin Peptide Particles Initiated Hydrogels with High Toughness, Adhesion, and Conductivity for Portable and Continuous Electrophysiological Monitoring

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 21, 2025

Abstract Hydrogel‐based electrodes are widely used in electrophysiological monitoring for personal disease prevention and home‐based healthcare. However, limited by the hydrogels’ low toughness, poor adhesion, weak electrical stability, motion artifacts device detachments inevitable after long‐term, continuous monitoring. Herein, novel liquid metal@silk fibroin peptide (LM@SF) core‐shell particles, which shell SF not only facilitates core LM's dispersion but also stabilizes free radicals, designed to initiate situ formation of hydrogel while simultaneously enhancing its conductivity. As applied monitoring, can maintain both a stable physical interface transmission skin, thus promoting signal acquisition quality obviously even during exercise long‐term wearing. At last, portable flexible patch with small volume (70 × 35 2 mm) light weight (7 g) is developed achieve electrocardiogram (ECG) via wireless transmission, demonstrating high potentials telemedicine.

Language: Английский

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A tough, healable, and recyclable conductive polyurethane/carbon nanotube composite

Journal of Colloid and Interface Science, Journal Year: 2022, Volume and Issue: 631, P. 239 - 248

Published: Nov. 14, 2022

Language: Английский

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Functional microneedles for wearable electronics

Smart Medicine, Journal Year: 2023, Volume and Issue: 2(1)

Published: Feb. 1, 2023

Abstract With an ideal comfort level, sensitivity, reliability, and user‐friendliness, wearable sensors are making great contributions to daily health care, nursing early disease discovery, body monitoring. Some imparted with hierarchical uneven microstructures, such as microneedle structures, which not only facilitate the access multiple bio‐analysts in human but also improve abilities detect feeble signals. In this paper, we present promising applications latest progress of functional microneedles sensors. We begin by discussing roles sensing units, including how signals captured, converted, transmitted. introduce microneedle‐like structures power depend on triboelectric or piezoelectric effects, etc. Finally, summarize cutting‐edge microneedle‐based biophysical signal monitoring biochemical analyte detection, provide critical thinking their future perspectives.

Language: Английский

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A hydrophobic eutectogel with excellent underwater Self-adhesion, Self-healing, Transparency, Stretchability, ionic Conductivity, and fully recyclability

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 472, P. 145177 - 145177

Published: Aug. 1, 2023

Language: Английский

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