Flexible Metamaterial Electronics

Advanced Materials, Journal Year: 2022, Volume and Issue: 34(52)

Published: March 24, 2022

Abstract Over the last decade, extensive efforts have been made on utilizing advanced materials and structures to improve properties functionalities of flexible electronics. While conventional ways are approaching their natural limits, a revolutionary strategy, namely metamaterials, is emerging toward engineering structural break existing fetters. Metamaterials exhibit supernatural physical behaviors, in aspects mechanical, optical, thermal, acoustic, electronic that inaccessible materials, such as tunable stiffness or Poisson's ratio, manipulating electromagnetic elastic waves, topological programmable morphability. These salient merits motivate metamaterials brand‐new research direction inspired innovative applications Here, groundbreaking interdisciplinary field first coined “flexible metamaterial electronics,” focusing enhancing innovating electronics via design metamaterials. Herein, latest progress trends this infant reviewed while highlighting potential value. First, brief overview starts with introducing combination Then, developed discussed, self‐adaptive deformability, ultrahigh sensitivity, multidisciplinary functionality, followed by discussion prospects. Finally, challenges opportunities facing advance cutting‐edge summarized.

Language: Английский

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Skin bioelectronics towards long-term, continuous health monitoring

Chemical Society Reviews, Journal Year: 2022, Volume and Issue: 51(9), P. 3759 - 3793

Published: Jan. 1, 2022

Skin bioelectronics are considered as an ideal platform for personalised healthcare because of their unique characteristics, such thinness, light weight, good biocompatibility, excellent mechanical robustness, and great skin conformability. Recent advances in skin-interfaced have promoted various applications precision medicine. Particularly, long-term, continuous health monitoring offer powerful analysis a broad spectrum statuses, providing route to early disease diagnosis treatment. In this review, we discuss (1) representative sensing devices, (2) material structure selection, device properties, wireless technologies towards monitoring, (3) applications: acquisition electrophysiological, biophysical, biochemical signals, comprehensive (4) rational guidelines the design future monitoring. Long-term, advanced will open unprecedented opportunities timely prevention, screening, diagnosis, treatment, demonstrating promise revolutionise traditional medical practices.

Language: Английский

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Recent Advances in Multiresponsive Flexible Sensors towards E‐skin: A Delicate Design for Versatile Sensing

Small, Journal Year: 2021, Volume and Issue: 18(7)

Published: Nov. 25, 2021

Abstract Multiresponsive flexile sensors with strain, temperature, humidity, and other sensing abilities serving as real electronic skin (e‐skin) have manifested great application potential in flexible electronics, artificial intelligence (AI), Internet of Things (IoT). Although numerous sole function already been reported since the concept e‐skin, that mimics features human skin, was proposed about a decade ago, ones more capacities new emergences are urgently demanded. However, highly integrated sensitive multiresponsive functions becoming big thrust for detection body motions, physiological signals (e.g., blood pressure, electrocardiograms (ECG), electromyograms (EMG), sweat, etc.) environmental stimuli light, magnetic field, volatile organic compounds (VOCs)), which vital to real‐time all‐round health monitoring management. Herein, this review summarizes design, manufacturing, presents future challenges fabricating these next‐generation e‐skin wearable electronics.

Language: Английский

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Flexible Polydopamine Bioelectronics

Advanced Functional Materials, Journal Year: 2021, Volume and Issue: 31(30)

Published: May 18, 2021

Abstract Flexible bioelectronics have attracted increasing research interests due to their wide range of potential applications in human motion detection, personal healthcare monitoring, and medical diagnosis. Recently, design fabrication strategies integrated with mussel‐inspired polydopamine (PDA) demonstrated many appealing properties, which meet the structural functional requirements high‐performance flexible bioelectronics. The inherent multiple reactive sites hierarchical interactions within PDA can promote total electrochemical activities, self‐healing, surface activation, biocompatibility composite system. This review paper strives provide a comprehensive overview on this emerging area, including methodology, contributions whole composites, various PDA‐based current challenges future outlook field are also extensively discussed at end. aims serve as guideline area new inspirations toward next‐generation multifunctional broad applications.

Language: Английский

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Conductive Polymer Nanocomposites for Stretchable Electronics: Material Selection, Design, and Applications

ACS Applied Materials & Interfaces, Journal Year: 2021, Volume and Issue: 13(37), P. 43831 - 43854

Published: Sept. 13, 2021

Stretchable electronics that can elongate elastically as well flex are crucial to a wide range of emerging technologies, such wearable medical devices, electronic skin, and soft robotics. Critical stretchable is their ability withstand large mechanical strain without failure while retaining electrical conduction properties, feat significantly beyond traditional metals silicon-based semiconductors. Herein, we present review the recent advances in conductive polymer nanocomposites with exceptional stretchability which have potential transform applications, including sensors for biophysical signals, conductors electrodes, deformable energy-harvesting -storage devices. achieving these stretching properties judicious selection hybridization nanomaterials, novel microstructure designs, facile fabrication processes, focus this Review. To highlight potentials nanocomposites, summary some important applications presented, COVID-19 remote monitoring, connected health, skin augmented intelligence, Finally, perspectives on future challenges new research opportunities also presented discussed.

Language: Английский

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Transparent Electronics for Wearable Electronics Application

Chemical Reviews, Journal Year: 2023, Volume and Issue: 123(16), P. 9982 - 10078

Published: Aug. 5, 2023

Recent advancements in wearable electronics offer seamless integration with the human body for extracting various biophysical and biochemical information real-time health monitoring, clinical diagnostics, augmented reality. Enormous efforts have been dedicated to imparting stretchability/flexibility softness electronic devices through materials science structural modifications that enable stable comfortable of these curvilinear soft body. However, optical properties are still early stages consideration. By incorporating transparency, visual from interfacing biological systems can be preserved utilized comprehensive diagnosis image analysis techniques. Additionally, transparency provides imperceptibility, alleviating reluctance wear device on exposed skin. This review discusses recent advancement transparent a way includes materials, processing, devices, applications. Materials discussed regarding their characteristics, synthesis, engineering strategies property enhancements. We also examine bridging techniques Building blocks systems, including sensors, energy actuators, displays, mechanisms performances. Lastly, we summarize potential applications conclude remaining challenges prospects.

Language: Английский

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Interpenetrated Metal-Porphyrinic Framework for Enhanced Nonlinear Optical Limiting

Journal of the American Chemical Society, Journal Year: 2021, Volume and Issue: 143(41), P. 17162 - 17169

Published: Sept. 20, 2021

Structural interpenetration in metal-organic frameworks (MOFs) significantly impacts on their properties and functionalities. However, understanding the third-order nonlinear optics (NLO) of MOFs have not been reported to date. Herein, we report two 3D porphyrinic MOFs, a 2-fold interpenetrated [Zn2(TPyP)(AC)2] (ZnTPyP-1) noninterpenetrated [Zn3(TPyP)(H2O)2(C2O4)2] (ZnTPyP-2), constructed from 5,10,15,20-tetra(4-pyridyl)porphyrin (TPyP(H2)) Zn(NO3)2 (AC = acetate, C2O4 oxalate). ZnTPyP-1 achieves excellent optical limiting (OL) performance with giant absorption coefficient (3.61 × 106 cm/GW) large susceptibility (7.73 10-7 esu), which is much better than ZnTPyP-2 other OL materials. The corresponding nanosheets are dispersed into polydimethylsiloxane (PDMS) matrix form highly transparent flexible MOFs/PDMS glasses for practical application. In addition, response optimized by adjusting concentration PDMS type metalloporphyrin discussed system. theoretical calculation confirmed that abundant π-π interaction groups framework increased electron delocalization/transfer boosted performance. This study opens new avenue enhance construction structures provides approach preparation MOF composites applications.

Language: Английский

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Flexible Plasmonic Biosensors for Healthcare Monitoring: Progress and Prospects

ACS Nano, Journal Year: 2021, Volume and Issue: 15(12), P. 18822 - 18847

Published: Nov. 29, 2021

The noble metal nanoparticle has been widely utilized as a plasmonic unit to enhance biosensors, by leveraging its electric and/or optical properties. Integrated with the "flexible" feature, it further enables opportunities in developing healthcare products conformal and adaptive fashion, such wrist pulse tracers, body temperature trackers, blood glucose monitors, etc. In this work, we present holistic review of recent advance flexible biosensors for sector. technical spectrum broadly covers design selection substrate, process integrate units, exploration different types monitor human temperature, glucose, ions, gas, motion indicators, well their applications surface-enhanced Raman scattering (SERS) colorimetric detections. Their fundamental working principles structural innovations are scoped summarized. challenges prospects articulated regarding critical importance continued progress improve living quality.

Language: Английский

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Smart Fibers for Self-Powered Electronic Skins

Advanced Fiber Materials, Journal Year: 2022, Volume and Issue: 5(2), P. 401 - 428

Published: Dec. 13, 2022

Language: Английский

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A Nonswelling Hydrogel with Regenerable High Wet Tissue Adhesion for Bioelectronics

Advanced Materials, Journal Year: 2023, Volume and Issue: 35(18)

Published: Feb. 5, 2023

Reducing the swelling of tissue-adhesive hydrogels is crucial for maintaining stable tissue adhesion and inhibiting inflammation. However, reported strategies reducing always result in a simultaneous decrease adhesive strength hydrogel. Furthermore, once covalent bonds break currently hydrogels, they cannot be rebuilt, hydrogel loses its ability. In this work, nonswelling (named as "PAACP") possessing regenerable high synthesized by copolymerizing crosslinking poly(vinyl butyral) with acrylic acid, gelatin, chitosan-grafted N-acetyl-l-cysteine. The obtained PAACP reaches 211.4 kPa, which approximately ten times higher than that can reused multiple cycles. as-prepared shows great potential soft bioelectronics, muscle fatigue successfully monitored via electrode array strain sensor integrated on substrates. success these bioelectronics offers applicability long-term diagnosis muscle-related health conditions prosthetic manipulations.

Language: Английский

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