Ear‐Area Soft Electronics for Advanced Healthcare Monitoring DOI
Yue Yu, Haoyu Zhang, Xiaosen Pan

et al.

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

Published: April 30, 2025

Abstract The ear harbors a wealth of critical physiological and pathological information, positioning it as an ideal site for healthcare monitoring. However, the intricate geometry sensitivity pose formidable technical hurdles to effective Soft electronics, renowned their mechanical deformability, excellent skin conformability, biocompatibility, offer compelling advantages, particularly within emerging contexts fifth‐generation technology Internet Things. These innovations provide essential support achieving comprehensive monitoring via ear‐area soft electronics. This review comprehensively outlines recent advancements in electronics advanced authors begin by elucidating properties external, middle, inner from clinical perspectives. Subsequently, leveraging these anatomical insights, state‐of‐the‐art bioelectric, biophysical, biochemical, multimodal are explored. Furthermore, insights offered into enduring challenges prospective directions systematic sensor design, data processing methodologies, translational applications. As whole, will new paradigms shift evolution wearable implantable thereby fostering rapid high‐quality development systems.

Language: Английский

Super Tough Anti‐freezing and Antibacterial Hydrogel With Multi‐crosslinked Network for Flexible Strain Sensor DOI Open Access
Huimin Liu,

Shiqiang Guan,

Pengwei Wang

et al.

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

Published: Feb. 5, 2025

Abstract Addressing the diverse environmental demands for electronic material performance, design of a multifunctional ionic conductive hydrogel with mechanical flexibility, anti‐freezing capability, and antibacterial characteristics represents an optimal solution. Leveraging Dead Sea effect strong hydrogen bonding, this study exploits CaCl 2 abundant hydroxyl groups in phytic acid (PA) to induce chain entanglements, thereby constructing complex, multi‐crosslinked network. Furthermore, PA ternary solvent systems (CaCl /Glycerol/H O) synergistically impart excellent strength, toughness (with tensile strength 8.93 MPa, elongation at break 859.93%, 39.92 MJ m −3 ), high electrical conductivity, antifreeze properties, strain sensitivity (gauge factor up 2.10) hydrogels. Remarkably, structure maintains stability even after undergoing 6000 loading‐unloading cycles, demonstrating its outstanding fatigue resistance. Upon receiving external stimuli, exhibits response time 126 ms, making it ideal dynamic monitoring human motion signals. This offers novel insight into potential application hydrogels as flexible sensors challenging environments.

Language: Английский

Citations

7
Bioinspired Super‐Robust Conductive Hydrogels for Machine Learning‐Assisted Tactile Perception System DOI Open Access
Chao Xue,

Yanran Zhao,

Yuantai Liao

et al.

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

Published: Feb. 3, 2025

Conductive hydrogels have attracted significant attention due to exceptional flexibility, electrochemical property, and biocompatibility. However, the low mechanical strength can compromise their stability under high stress, making material susceptible fracture in complex or harsh environments. Achieving a balance between conductivity robustness remains critical challenge. In this study, super-robust conductive were designed developed with highly oriented structures densified networks, by employing techniques such as stretch-drying-induced directional assembly, salting-out, ionic crosslinking. The showed remarkable property (tensile strength: 17.13-142.1 MPa; toughness: 50 MJ m- 3), (30.1 S m-1), reliable strain sensing performance. Additionally, it applied hydrogel fabricate biomimetic electronic skin device, significantly improving signal quality device stability. By integrating 1D convolutional neural network algorithm, further real-time recognition system based on triboelectric piezoresistive collection, achieving classification accuracy of up 99.79% across eight materials. This study predicted potential high-performance for various applications flexible smart wearables, Internet Things, bioelectronics, bionic robotics.

Language: Английский

Citations

6
A bibliometric analysis of hydrogel research in various fields: the trends and evolution of hydrogel application DOI Creative Commons

Zhong-Zhu Yuan,

Fan Yang,

Sheng Cheng

et al.

Journal of Nanobiotechnology, Journal Year: 2025, Volume and Issue: 23(1)

Published: Jan. 31, 2025

Hydrogel, a polymer material with three-dimensional structure, has considerably expanded in research across multiple fields lately. However, the lack of comprehensive review integrating status hydrogel diverse hindered development hydrogel. This bibliometric analysis reviewed hydrogel-related over past decades, emphasizing evolution, status, and future directions within multitude fields, such as materials science, chemistry, engineering, physics, biochemistry molecular biology, pharmacology pharmacy, cell biotechnology applied microbiology, etc. We encapsulated applications potential wound healing, drug delivery, encapsulation, bioprinting, tissue electronic products, environment applications, disease treatment. study integrated current matrix system characteristics hydrogels, aiming to offer cross-field reference for researchers promote advancement research. Furthermore, we proposed novel reproducible paradigm, which can provide more trends trajectory field.

Language: Английский

Citations

4
Advances in conducting nanocomposite hydrogels for wearable biomonitoring DOI
Arpita Roy, Ronak Afshari, Saumya Jain

et al.

Chemical Society Reviews, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Recent advancements in wearable biosensors and bioelectronics highlight biocompatible conducting nanocomposite hydrogels as key components for personalized health devices soft electronics.

Language: Английский

Citations

4
Design Strategies and Emerging Applications of Conductive Hydrogels in Wearable Sensing DOI Creative Commons
Yingchun Li, Shaozhe Tan,

X Y Zhang

et al.

Gels, Journal Year: 2025, Volume and Issue: 11(4), P. 258 - 258

Published: April 1, 2025

Conductive hydrogels, integrating high conductivity, mechanical flexibility, and biocompatibility, have emerged as crucial materials driving the evolution of next-generation wearable sensors. Their unique ability to establish seamless interfaces with biological tissues enables real-time acquisition physiological signals, external stimuli, even therapeutic feedback, paving way for intelligent health monitoring personalized medical interventions. To fully harness their potential, significant efforts been dedicated tailoring conductive networks, properties, environmental stability these hydrogels through rational design systematic optimization. This review comprehensively summarizes strategies categorized into metal-based, carbon-based, polymer-based, ionic, hybrid systems. For each type, highlights structural principles, conductivity enhancement, approaches simultaneously enhance robustness long-term under complex environments. Furthermore, emerging applications in sensing systems are thoroughly discussed, covering signal monitoring, mechano-responsive platforms, closed-loop diagnostic–therapeutic Finally, this identifies key challenges offers future perspectives guide development multifunctional, intelligent, scalable hydrogel sensors, accelerating translation advanced flexible electronics smart healthcare technologies.

Language: Английский

Citations

3
Mussel-inspired strong and tough hydrogel with self-adhesive properties based on dynamic interactions for flexible wearable electronics DOI
Xiaoyong Zhang, Fan Li,

Zhaozhao Li

et al.

Journal of Materials Chemistry A, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Emerging conductive hydrogels showcase profound potential for sophisticated manipulation and various sensing applications.

Language: Английский

Citations

2
Ways forward with conductive hydrogels: Classifications, properties, and applications in flexible electronic and energy gadgets DOI
Weilin Zhang, Hongjian Zhang, Hyunseung Kim

et al.

Materials Science and Engineering R Reports, Journal Year: 2025, Volume and Issue: 163, P. 100923 - 100923

Published: Jan. 8, 2025

Language: Английский

Citations

2
Unidirectionally arranged layered structured hydrogels with high strength, multifunctional integration, and somatosensory actuators DOI
Da Bao, Fucheng Guan,

Xinbin Ji

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 159294 - 159294

Published: Jan. 1, 2025

Language: Английский

Citations

1
Transparent and Stretchable Conductive Hydrogel Sensors: Optimizing Ion Selection to Enhance Mechanical and Sensing Performance DOI

Dian-Huan Ji,

Yu-Feng Ni,

Chia‐Hung Lin

et al.

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

Published: Jan. 15, 2025

Conductive hydrogels, with their unique combination of electrical conductivity and stretchability, are emerging as critical components for next-generation, flexible, wearable sensors. In this work, we aimed to develop a low-cost, easy-to-manufacture hydrogel sensor using ionic compounds the source conductivity. Hydrogels were synthesized acrylamide, poly(ethylene glycol), carboxymethyl cellulose, systematic variation LiCl, NaCl, KCl, labeled Li-CH, Na-CH, K-CH, respectively, explore effects on nanostructure mechanical properties hydrogels. Among different formulations, Na-CH demonstrated superior performance optimized elongation at break, tensile strength, toughness, highlighting importance ion selection in design. also exhibited excellent outstanding transparency, high sensitivity detecting wide range body movements, from large-scale gestures subtle physiological signals such pulse detection. With its exceptional robustness, repeatable sensing performance, shows great potential future applications flexible electronics, healthcare monitoring systems, smart display technologies.

Language: Английский

Citations

1
Skin-like Heterogeneous and Self-Healing Conductive Hydrogel toward Ultrasensitive Marine Sensing DOI
Yanan Liu,

Jiehan Lin,

Junjie Wei

et al.

ACS Sensors, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 25, 2025

Flexible wearable electronic devices based on hydrophobic, conductive hydrogels have attracted widespread attention in the field of underwater sensing. However, traditional homogeneous tend to compromise their conductivity and sensing performance when achieving hydrophobicity, high complexity marine environments further reduces service life. Here, we develop a seawater-resistant hydrogel with ultrahigh sensitivity self-healing ability by introduction skin-like heterogeneous structure, consisting hydrophobic outer layer that protects against seawater internal senses. Based structure obtained through surface modification confined nitrogen-alkylation reaction, simultaneously achieves satisfying resistance (contact angle 123.2°), ionic (2.86 S m–1), excellent (GF = 6.15), harmonizing contradiction between water hydrogels. In addition, abundant hydrogen-bonding dipole–dipole interactions endow an outstanding ability, exhibiting high-efficiency behavior seawater. Underwater strain sensors constructed can be used for detecting human motion simulated real-time signal transmission, showcasing great potential as field.

Language: Английский

Citations

1