A Wearable, Highly Sensitive Piezoresistive Pressure Sensor Based on MXene/NiMoO4@CMF and Mimicking the Hedgehog Skin Spike Structure for Its Real-Time Monitoring of Human Movement DOI
Hong Zhang,

Peihua Jin,

Kaige Pang

et al.

ACS Applied Electronic Materials, Journal Year: 2024, Volume and Issue: 6(10), P. 7503 - 7511

Published: Oct. 8, 2024

Flexible piezoresistive pressure sensors have received much attention due to their potential for applications in personalized real-time health detection, human-computer interaction, and the Internet of Things (IoT). However, achieving a fast response high sensitivity while keeping cost low remains key concern researchers. In this paper, we simulated spiky surface hedgehog skin by hydrothermal growth nickel molybdate on carbonized sponge. Based this, MXene material was compounded process immersion sonication, thus MXene/NiMoO4@CMF (MNC) successfully prepared. After assembly into an MNC sensor, it shows good performance. terms sensitivity, is 31.1 kPa–1 range 0–10 kPa, 15.7 10–15 3.3 15–64 kPa. Moreover, also has capability (500 ms) excellent cyclic stability (95.7%). addition, integrated sensor with ESP8266 WiFi Module IoT Development Board autonomously programmed UI interface. Therefore, capable monitoring human real time displaying abnormal statuses interface when test value outside normal range. summary, based its sensing performance application, wide wearable devices, IoT, monitoring.

Language: Английский

Toward Integrated Multifunctional Laser-Induced Graphene-Based Skin-Like Flexible Sensor Systems DOI
Kaichen Xu, Zimo Cai, Huayu Luo

et al.

ACS Nano, Journal Year: 2024, Volume and Issue: 18(39), P. 26435 - 26476

Published: Sept. 17, 2024

The burgeoning demands for health care and human-machine interfaces call the next generation of multifunctional integrated sensor systems with facile fabrication processes reliable performances. Laser-induced graphene (LIG) highly tunable physical chemical characteristics plays vital roles in developing versatile skin-like flexible or stretchable systems. This Progress Report presents an in-depth overview latest advances LIG-based techniques applications sensors. First, merits LIG technique are highlighted especially as building blocks sensors, followed by description various methods its variants. Then, focus is moved to diverse including electrophysiological Mechanisms advantages these scenarios described detail. Furthermore, representative paradigms presented show capabilities multipurpose applications. signal cross-talk issues discussed possible strategies. technology functionalities coupled other strategies will enable high-performance next-generation skin electronics.

Language: Английский

Citations

22
Growing Magnetic NiCo-LDH Nanosheets on the Ni@CoSe2 Surface to Enhance Energy Storage Capacity in Asymmetric Supercapacitors DOI
Yi Gao, Yi Jiang, Bin Cai

et al.

ACS Applied Energy Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 29, 2025

Language: Английский

Citations

2
Self‐Healing Yet Strong Actuator Materials with Muscle‐Like Diastole and Contraction via Multilevel Relaxations DOI Open Access
Zhuo Huang,

Zhibo Wu,

Changchun Li

et al.

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

Published: Dec. 10, 2024

Skeletal muscles represent a role model in soft robotics featuring agile locomotion and incredible mechanical robustness. However, existing actuators lack an optimal combination of actuation parameters (including modes, work capacity, strength, damage repair) to rival biological tissues. Here, biomimetic structural design strategy via multilevel relaxations (α/β/γ/δ-relaxation) modulation is proposed for robust healable actuator materials with muscle-like diastole contraction abilities by orientational alignment dendritic polyphenol-modified nano-assembles eutectogels. The anisotropic hierarchical micro-nanostructures assembled supramolecular interaction mimic the relative slippage actin filaments myosin muscles, ensuring bistable through rapid thermal α-relaxation expansion. Furthermore, kinetically active secondary β/γ/δ-relaxation at reconfigurable interfaces can conquer limited self-healing ability fixed-orientation polymeric chains. obtained artificial muscle exhibits high output actuation, properties (tensile strength 33.5 MPa), desired functional, efficiency (89.7%), exceeding typical natural living systems. bionic micro-nano achieves bottom-up cooperative relaxation integrate all-round performance which paves way substantial advancements next-generation intelligent robotics.

Language: Английский

Citations

11
On Demand Copper Electrochemical Deposition on Laser Induced Graphene for Flexible Electronics DOI Open Access
Chao Liang, Wenqiang Zhang, Yuxuan Fan

et al.

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

Published: Jan. 13, 2025

The rapid development of flexible electronics necessitates simplified processes that integrate heterogeneous materials and structures. In this study, laser engraving is combined with electrochemical deposition (ECD) to directly fabricate various micro/nano-structured components electronic circuits. A theoretical framework simulation model are developed design the on-demand ECD on induced graphene (LIG), enabling generation multi-scale copper (Cu) controllable oxidation states. Cu-LIG composites exhibit high surface quality reliability, meeting requirements study fabricates characterizes multilayer circuits complex functional devices, including sensors, thin-film heaters, wireless humidity showcase versatility LIG-ECD process. This approach can be extended polymer metal processes, paving way for high-performance devices.

Language: Английский

Citations

1
Benchtop Fabrication and Integration of Laser‐Induced Graphene Strain Gauges and Stimulation Electrodes in Muscle on a Chip Devices DOI Creative Commons
Anastasia Svetlova,

Harold B. Law,

Dawon Kim

et al.

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

Published: Feb. 24, 2025

Abstract Muscle on a Chip devices are valuable research tools for interrogating the structure and physiology of engineered heart, skeletal, or smooth muscle tissue constructs from molecular to multi‐cellular level. However, many existing rely functional assays with limited throughput, such as optical microscopy, measure contractility. Although electrical components have been integrated automate recordings in advanced devices, their fabrication typically requires specialized equipment found cleanroom facilities. In this work, miniature strain gauges record contractions skeletal bundles using only benchtop equipment. A commercial CO 2 laser is employed generate patterns laser‐induced graphene (LIG) polyimide (PI) films. LIG then transferred PI thin polydimethylsiloxane (PDMS) films make conductive intrinsically flexible stretchable layers that demonstrate long‐term stability under repeated cycles stretch. Engineered anchored LIG‐PDMS contraction sensed response stimulation, which delivered by LIG‐PI stimulation electrodes also into device. Collectively, these results an attractive material rapidly inexpensively integrating situ sensing devices.

Language: Английский

Citations

1
Customized surface adhesive and wettability properties of conformal electronic devices DOI

Wenfu Chen,

Junzhu Lin,

Zhicheng Ye

et al.

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

Published: Jan. 1, 2024

This review covers advances in conformal electronics surface engineering, focusing on wettability and adhesion to improve adaptability wet conditions irregular skin textures, enhancing durability signal stability.

Language: Английский

Citations

6
Breathable and Stretchable Epidermal Electronics for Health Management: Recent Advances and Challenges DOI Creative Commons
Jiancheng Dong, Jiayu Hou,

Yidong Peng

et al.

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

Published: Oct. 17, 2024

Advanced epidermal electronic devices, capable of real-time monitoring physical, physiological, and biochemical signals administering appropriate therapeutics, are revolutionizing personalized healthcare technology. However, conventional portable devices predominantly constructed from impermeable rigid materials, which thus leads to the mechanical disparities between human tissues, resulting in skin irritation, tissue damage, compromised signal-to-noise ratio (SNR), limited operational lifespans. To address these limitations, a new generation wearable on-skin electronics built on stretchable porous substrates has emerged. These offer significant advantages including breathability, conformability, biocompatibility, robustness, providing solutions for aforementioned challenges. given their diverse nature varying application scenarios, careful selection engineering suitable is paramount when developing high-performance tailored specific applications. This comprehensive review begins with an overview various substrates, specifically focusing fundamental design principles, fabrication processes, practical Subsequently, concise comparison methods offered fabricate by applying substrates. Following these, latest advancements applications highlighted. Finally, current challenges summarized potential future directions this dynamic field explored.

Language: Английский

Citations

6
Biopolymer‐Derived Carbon Materials for Wearable Electronics DOI Open Access

Jiongke Jin,

Haoxuan Ma,

Huarun Liang

et al.

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

Published: Jan. 28, 2025

Abstract Advanced carbon materials are widely utilized in wearable electronics. Nevertheless, the production of from fossil‐based sources raised concerns regarding their non‐renewability, high energy consumption, and consequent greenhouse gas emissions. Biopolymers, readily available nature, offer a promising eco‐friendly alternative as source, enabling sustainable for This review aims to discuss carbonization mechanisms, techniques, processes, well diverse applications biopolymer‐derived (BioCMs) First, characteristics four representative biopolymers, including cellulose, lignin, chitin, silk fibroin, processes discussed. Then, typical pyrolysis carbonization, laser‐induced Joule heating hydrothermal transformation, salt encapsulation The influence on morphology properties resultant BioCMs summarized. Subsequently, devices, physical sensors, chemical display devices Finally, challenges currently facing field future opportunities

Language: Английский

Citations

0
Mask‐Free Direct Printing of Highly Customizable, Conformable, Robust, and Recyclable Microelectrodes for Advanced Curvy Electronics DOI Open Access

Xiangyi Kong,

Yazheng Liu, Jianping Wang

et al.

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

Published: Feb. 7, 2025

Abstract Highly conformal and mechanically robust curvy electronics that seamlessly adapt to sophisticated unpredictable 3D geometries provide breakthrough solutions in advanced fields such as health monitoring, wireless energy transmission, human‐computer interface. Nevertheless, existing material choices along with manufacturing techniques substantially impede these from achieving their full potential. This study presents a mask‐free straightforward direct writing transfer (DW&T) technique employs polytetrafluoroethylene film temporary substrate, utilizing the phase transition of printed electrodes between hydrogel dry states enable cost‐effective fabrication conformally adhering conductive microelectrode patterns on nearly all surfaces. The resultant microelectrodes demonstrate extensively adjustable feature dimensions (linewidth 50–400 µm; height 0.07–2.3 pitch 20 µm minimum) possess distinct electrical optical characteristics, addition exhibiting significant stability under severe bending stretching strains recyclability. To capabilities DW&T, imperceptible customizable substrate‐free electronic skin (e‐skin) human is developed. e‐skin maintains ultraconformal seamless contact skin, does not natural sensations physiological changes its hosts, achieves high‐fidelity recording diverse electrophysiological signals.

Language: Английский

Citations

0
Enhanced Sensitivity of Compliant Piezoresistive Sensors with Strain-Modulated Surface Hole Structures DOI
Ying Chen,

Yujiao Qin,

Muzi Fang

et al.

Sensors and Actuators A Physical, Journal Year: 2025, Volume and Issue: unknown, P. 116344 - 116344

Published: Feb. 1, 2025

Language: Английский

Citations

0