Metal-Oxide Nanomaterials Synthesis and Applications in Flexible and Wearable Sensors

ACS Nanoscience Au, Journal Year: 2021, Volume and Issue: 2(2), P. 64 - 92

Published: Nov. 29, 2021

Metal-oxide nanomaterials (MONs) have gained considerable interest in the construction of flexible/wearable sensors due to their tunable band gap, low cost, large specific area, and ease manufacturing. Furthermore, MONs are high demand for applications, such as gas leakage alarms, environmental protection, health tracking, smart devices integrated with another system. In this Review, we introduce a comprehensive investigation factors boost sensitivity MON-based indicators monitoring. Finally, challenges perspectives considered.

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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Recent Progress of Conductive Hydrogel Fibers for Flexible Electronics: Fabrications, Applications, and Perspectives

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(17)

Published: Jan. 31, 2023

Abstract Flexible conductive materials with intrinsic structural characteristics are currently in the spotlight of both fundamental science and advanced technological applications due to their functional preponderances such as remarkable conductivity, excellent mechanical properties, tunable physical chemical so on. Typically, hydrogel fibers (CHFs) promising candidates owing unique including light weight, high length‐to‐diameter ratio, deformability, Herein, a comprehensive overview cutting‐edge advances CHFs involving architectural features, function characteristics, fabrication strategies, applications, perspectives flexible electronics provided. The design principles strategies systematically introduced discontinuous (the capillary polymerization draw spinning) continuous wet spinning, microfluidic 3D printing, electrospinning). In addition, potential crucially emphasized energy harvesting devices, storage smart sensors, biomedical electronics. This review concludes perspective on challenges opportunities attractive CHFs, allowing for better understanding fundamentals development materials.

Language: Английский

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A highly stretchable, sensing durability, transparent, and environmentally stable ion conducting hydrogel strain sensor built by interpenetrating Ca2+-SA and glycerol-PVA double physically cross-linked networks

Advanced Composites and Hybrid Materials, Journal Year: 2022, Volume and Issue: 5(3), P. 1712 - 1729

Published: Jan. 22, 2022

Language: Английский

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Synthesis, Properties, and Selected Technical Applications of Magnesium Oxide Nanoparticles: A Review

International Journal of Molecular Sciences, Journal Year: 2021, Volume and Issue: 22(23), P. 12752 - 12752

Published: Nov. 25, 2021

In the last few decades, there has been a trend involving use of nanoscale fillers in variety applications. Significant improvements have achieved areas their preparation and further applications (e.g., industry, agriculture, medicine). One these promising materials is magnesium oxide (MgO), unique properties which make it suitable candidate for wide range Generally, MgO white, hygroscopic solid mineral, its lattice consists Mg2+ ions O2− ions. Nanostructured can be prepared through different chemical (bottom-up approach) or physical (top-down routes. The required resultant bandgap, crystallite size, shape) depending on reaction conditions, basic starting materials, concentrations. addition to material properties, also potentially interest due nontoxicity environmental friendliness, allow widely used medicine biotechnological

Language: Английский

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Strategies in the preparation of conductive polyvinyl alcohol hydrogels for applications in flexible strain sensors, flexible supercapacitors, and triboelectric nanogenerator sensors: an overview

Advanced Composites and Hybrid Materials, Journal Year: 2023, Volume and Issue: 6(6)

Published: Nov. 8, 2023

Language: Английский

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An overview of regenerable wood-based composites: preparation and applications for flame retardancy, enhanced mechanical properties, biomimicry, and transparency energy saving

Advanced Composites and Hybrid Materials, Journal Year: 2022, Volume and Issue: 5(3), P. 1612 - 1657

Published: June 8, 2022

Language: Английский

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A Review on Piezoelectric Materials and Their Applications

Crystal Research and Technology, Journal Year: 2022, Volume and Issue: 58(2)

Published: Nov. 27, 2022

Abstract Piezoelectric materials have the merits of fast response, speed, and high precision. These been widely investigated for functional device applications such as sensors, actuators, microelectromechanical systems (MEMS), nanoelectromechanical (NEMS), 3D‐printing etc. This paper offers a review on recent advances in piezoelectric their limitations. In addition, different lead‐based, lead‐free are discussed, catalysis, energy harvesting, biomedical engineering, additive manufacturing addressed.

Language: Английский

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A Printed Flexible Humidity Sensor with High Sensitivity and Fast Response Using a Cellulose Nanofiber/Carbon Black Composite

ACS Applied Materials & Interfaces, Journal Year: 2022, Volume and Issue: 14(4), P. 5721 - 5728

Published: Jan. 24, 2022

In the emerging Internet of Things (IoT) society, there is a significant need for low-cost, high-performance flexible humidity sensors in wearable devices. However, commercially available lack flexibility or require expensive and complex fabrication methods, limiting their application widespread use. We report printed sensor using cellulose nanofiber/carbon black (CNF/CB) composite. The nanofiber enables excellent dispersion carbon black, which facilitates ink preparation printing process. At same time, its hydrophilic porous nature provides high sensitivity fast response to humidity. Significant resistance changes 120% were observed at ranging from 30% RH 90% RH, with time 10 s recovery 6 s. Furthermore, developed also exhibited uniformity, stability, flexibility. A simple detection device was fabricated successfully applied monitor human respiration noncontact fingertip moisture as proof-of-concept.

Language: Английский

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3D Printed Supercapacitor: Techniques, Materials, Designs, and Applications

Advanced Functional Materials, Journal Year: 2022, Volume and Issue: 33(1)

Published: Nov. 1, 2022

Abstract Supercapacitors (SCs) offer broad possibilities in the rising domain of military and civilian owing to their intrinsic properties superior power density, long lifetime, safety features. Despite low‐cost, facile manufacture, time‐saving, 3D printing technology unleashes potential SCs terms achieving desirable capacitance with high mass loading, fabrication well‐designed complicated structures, direct construction on‐chip integration systems. In this review, first, representative technologies for advanced printable materials are scrutinized materials. Then structure design principles electrodes devices respectively highlighted reported cases systematically summarized. Next, configurations applications various areas described detail. Finally, promising research directions future discussed. The perspectives reviewed here expected provide a comprehensive understanding 3D‐printed guidance realizing promise applications.

Language: Английский

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