Implantable Triboelectric Nanogenerators for Self‐Powered Cardiovascular Healthcare

Small, Год журнала: 2023, Номер 19(51)

Опубликована: Фев. 9, 2023

Abstract Triboelectric nanogenerators (TENGs) have gained significant traction in recent years the bioengineering community. With potential for expansive applications biomedical use, many individuals and research groups furthered their studies on topic, order to gain an understanding of how TENGs can contribute healthcare. More specifically, there been a number focusing implantable triboelectric (I‐TENGs) toward self‐powered cardiac systems In this review, progression cardiovascular healthcare, including monitoring devices, therapeutic power sources pacemakers, will be systematically reviewed. Long‐term expectations these TENG devices through biocompatibility other utilization strategies also discussed.

Язык: Английский

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NH3-Induced In Situ Etching Strategy Derived 3D-Interconnected Porous MXene/Carbon Dots Films for High Performance Flexible Supercapacitors

Nano-Micro Letters, Год журнала: 2023, Номер 15(1)

Опубликована: Окт. 18, 2023

2D MXene (Ti3CNTx) has been considered as the most promising electrode material for flexible supercapacitors owing to its metallic conductivity, ultra-high capacitance, and excellent flexibility. However, it suffers from a severe restacking problem during fabrication process, limiting ion transport kinetics accessibility of ions in electrodes, especially direction normal surface. Herein, we report NH3-induced situ etching strategy fabricate 3D-interconnected porous MXene/carbon dots (p-MC) films high-performance supercapacitor. The pre-intercalated carbon (CDs) first prevent expose more inner electrochemical active sites. partially decomposed CDs generate NH3 nanosheets toward p-MC films. Benefiting structural merits ionic transmission channels, film electrodes achieve gravimetric capacitance (688.9 F g-1 at 2 A g-1) superior rate capability. Moreover, optimized is assembled into an asymmetric solid-state supercapacitor with high energy density cycling stability, demonstrating great promise practical applications.

Язык: Английский

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Low-dimensional nanostructures for monolithic 3D-integrated flexible and stretchable electronics

Chemical Society Reviews, Год журнала: 2024, Номер 53(3), С. 1316 - 1353

Опубликована: Янв. 1, 2024

Low-dimensional nanostructures, with their small size, unique characteristics, flexible/elastic adaptability, and effective vertical stacking capability, play a crucial role in advancing monolithic 3D-integrated flexible/stretchable systems.

Язык: Английский

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3D printed microstructured ultra-sensitive pressure sensors based on microgel-reinforced double network hydrogels for biomechanical applications

Materials Horizons, Год журнала: 2023, Номер 10(10), С. 4232 - 4242

Опубликована: Янв. 1, 2023

Hydrogel-based wearable flexible pressure sensors have great promise in human health and motion monitoring. However, it remains a challenge to significantly improve the toughness, sensitivity stability of hydrogel sensors. Here, we demonstrate fabrication hierarchically structured by 3D printing microgel-reinforced double network (MRDN) hydrogels achieve both very high mechanical toughness. Polyelectrolyte microgels are used as building blocks, which interpenetrated with second network, construct super tough hydrogels. The obtained show tensile strength 1.61 MPa, fracture toughness 5.08 MJ m-3 water content. MRDN precursors exhibit reversible gel-sol transitions, serve ideal inks for microstructured sensor arrays fidelity precision. an ultra-high 0.925 kPa-1, more than 50 times that plain assembled array onto shoe-pad monitor foot biomechanics during gaiting. Moreover, well-arranged spatial distribution pixels different microstructures sensitivities is fabricated track trajectory crawling tortoise. Such promising application electronic devices.

Язык: Английский

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Implantable Flexible Sensors for Health Monitoring

Advanced Healthcare Materials, Год журнала: 2023, Номер 13(2)

Опубликована: Окт. 11, 2023

Flexible sensors, as a significant component of flexible electronics, have attracted great interest the realms human-computer interaction and health monitoring due to their high conformability, adjustable sensitivity, excellent durability. In comparison wearable sensor-based in vitro monitoring, use implantable sensors (IFSs) for vivo offers more accurate reliable vital sign information ability adapt directly integrate with human tissue. IFSs show tremendous promise field unique advantages such robust signal reading capabilities, lightweight design, flexibility, biocompatibility. Herein, review signs is detailly provided, highlighting essential conditions applications. As prerequisites IFSs, stretchability wireless self-powered properties sensor are discussed, special attention paid sensing materials which can maintain prominent biosafety (i.e., biocompatibility, biodegradability, bioresorbability). Furthermore, applications various parts body described detail, summary brain eye blood monitoring. Finally, challenges well opportunities development next-generation presented.

Язык: Английский

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Finger–coding intelligent human–machine interaction system based on all–fabric ionic capacitive pressure sensors

Nano Energy, Год журнала: 2023, Номер 116, С. 108783 - 108783

Опубликована: Авг. 9, 2023

Язык: Английский

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Flexible Metasurfaces for Multifunctional Interfaces

ACS Nano, Год журнала: 2024, Номер 18(4), С. 2685 - 2707

Опубликована: Янв. 19, 2024

Optical metasurfaces, capable of manipulating the properties light with a thickness at subwavelength scale, have been subject extensive investigation in recent decades. This research has mainly driven by their potential to overcome limitations traditional, bulky optical devices. However, most existing metasurfaces are confined planar and rigid designs, functions, technologies, which greatly impede evolution toward practical applications that often involve complex surfaces. The disconnect between two-dimensional (2D) structures three-dimensional (3D) curved surfaces is becoming increasingly pronounced. In past two decades, emergence flexible electronics ushered an emerging era for metasurfaces. review delves into this cutting-edge field, focus on both conformal design fabrication techniques. Initially, we reflect milestones trajectories modern complemented brief overview theoretical underpinnings primary classifications. We then showcase four advanced emphasizing promising prospects relevance areas such as imaging, biosensing, cloaking, multifunctionality. Subsequently, explore three key trends including mechanically reconfigurable digitally controlled Finally, summarize our insights ongoing challenges opportunities field.

Язык: Английский

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Convolutional Neural Networks‐Motivated High‐Performance Multi‐Functional Electronic Skin for Intelligent Human‐Computer Interaction

Nano Energy, Год журнала: 2024, Номер 122, С. 109313 - 109313

Опубликована: Янв. 20, 2024

Язык: Английский

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Degradable, biocompatible, and flexible capacitive pressure sensor for intelligent gait recognition and rehabilitation training

Nano Energy, Год журнала: 2024, Номер 127, С. 109750 - 109750

Опубликована: Май 18, 2024

Язык: Английский

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Conducting polymer hydrogels based on supramolecular strategies for wearable sensors

Exploration, Год журнала: 2024, Номер 4(5)

Опубликована: Март 14, 2024

Abstract Conductive polymer hydrogels (CPHs) are gaining considerable attention in developing wearable electronics due to their unique combination of high conductivity and softness. However, the absence interactions, incompatibility between hydrophobic conductive polymers (CPs) hydrophilic networks gives rise inadequate bonding CPs hydrogel matrices, thereby significantly impairing mechanical electrical properties CPHs constraining utility electronic sensors. Therefore, endow with good performance, it is necessary ensure a stable robust network CPs. Encouragingly, recent research has demonstrated that incorporating supramolecular interactions into enhances interaction, improving overall CPH performance. comprehensive review focusing on (SCPH) for sensing applications currently lacking. This provides summary typical strategies employed development high‐performance elucidates SCPHs closely associated Moreover, discusses fabrication methods classification SCPH sensors, while also exploring latest application scenarios Finally, challenges sensors offers suggestions future advancements.

Язык: Английский

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