Ultrastretchable, fatigue-resistant eutectogel with hierarchical bonding for advanced wearable monitoring DOI

Min Jeong Kim,

Sung Ho Cho, Soong Ju Oh

et al.

Research Square (Research Square), Journal Year: 2025, Volume and Issue: unknown

Published: April 22, 2025

Abstract Wearable healthcare and IoT applications demand conductors that are tough, stretchable, exhibit skin-like elasticity, advanced sensing capabilities, durability under dynamic conditions. However, conventional ionic conductors, such as hydrogels eutectogels, suffer from low conductivity, poor fatigue resistance, limited adaptability to deformation, constrained by trade-offs between mechanical robustness electrical performance. Here, we present an ultrastretchable, fatigue-resistant organic mixed ionic-electronic conductor (OMIEC) eutectogel addresses these challenges enhancing inherently competing properties through a novel hierarchical bonding network. This structure integrates hydrogen bonds within polymerizable deep eutectic solvent (PDES) matrix hydrophobic interactions derived rigid, mixed-conductive domains, forming robust conducting gel synergistic design significantly enhances toughness, fracture electromechanical sensitivity, while maintaining ultralow hysteresis (≤ 1%) strains up 1,500%. The OMIEC demonstrates 66-fold increase in 6.2-fold improvement energy, 4.5-fold enhancement complemented self-healing extend life beyond 100,000 cycles. By integrating the material eliminates traditional trade-offs, enabling precise stable monitoring of physiological motion, temperature, complex human gestures environments. multifunctional establishes transformative platform for next-generation wearable bioelectronics, providing unparalleled stretchability, durability, multi-sensing performance health monitoring, soft robotics, systems.

Language: Английский

Natural polymer starch-based materials for flexible electronic sensor development: A review of recent progress DOI Creative Commons
Fengwei Xie

Carbohydrate Polymers, Journal Year: 2024, Volume and Issue: 337, P. 122116 - 122116

Published: April 5, 2024

In response to the burgeoning interest in development of highly conformable and resilient flexible electronic sensors capable transducing diverse physical stimuli, this review investigates pivotal role natural polymers, specifically those derived from starch, crafting sustainable biocompatible sensing materials. Expounding on cutting-edge research, exploration delves into innovative strategies employed leverage distinctive attributes starch conjunction with other polymers for fabrication advanced sensors. The comprehensive discussion encompasses a spectrum starch-based materials, spanning all-starch-based gels soft composites, meticulously scrutinizing their applications constructing resistive, capacitive, piezoelectric, triboelectric These intricately designed exhibit proficiency detecting an array including strain, temperature, humidity, liquids, enzymes, thereby playing continuous non-invasive monitoring human body motions, physiological signals, environmental conditions. highlights intricate interplay between material properties, sensor design, performance, emphasizing unique advantages conferred by such as self-adhesiveness, self-healability, re-processibility facilitated dynamic bonding. conclusion, paper outlines current challenges future research opportunities evolving field, offering valuable insights prospective investigations.

Language: Английский

Citations

20
Cadmium(II) adsorption by recyclable Zeolite-Loaded Hydrogel: Extension to the removal of Cadmium(II) from contaminated soil DOI

Hanjing Xu,

Ziqing Ou,

Wenyan Li

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 492, P. 151842 - 151842

Published: May 1, 2024

Language: Английский

Citations

17
Soft hydrogel semiconductors with augmented biointeractive functions DOI
Yahao Dai, Shinya Wai, Pengju Li

et al.

Science, Journal Year: 2024, Volume and Issue: 386(6720), P. 431 - 439

Published: Oct. 24, 2024

Hydrogels, known for their mechanical and chemical similarity to biological tissues, are widely used in biotechnologies, whereas semiconductors provide advanced electronic optoelectronic functionalities such as signal amplification, sensing, photomodulation. Combining semiconducting properties with hydrogel designs can enhance biointeractive functions intimacy at biointerfaces, but this is challenging owing the low hydrophilicity of polymer semiconductors. We developed a solvent affinity–induced assembly method that incorporates water-insoluble into double-network hydrogels. These exhibited tissue-level moduli soft 81 kilopascals, stretchability 150% strain, charge-carrier mobility up 1.4 square centimeters per volt second. When they interfaced modulus enables alleviated immune reactions. The hydrogel’s high porosity enhances molecular interactions semiconductor-biofluid interfaces, resulting photomodulation higher response volumetric biosensing sensitivity.

Language: Английский

Citations

15
Advances in AI-assisted biochip technology for biomedicine DOI Creative Commons
Didem Rodoplu

Biomedicine & Pharmacotherapy, Journal Year: 2024, Volume and Issue: 177, P. 116997 - 116997

Published: June 28, 2024

Language: Английский

Citations

8
Modified Nanocellulose Hydrogels and Applications in Sensing Fields DOI Creative Commons

Lan Yang,

Qian-Yu Yuan,

Ching‐Wen Lou

et al.

Gels, Journal Year: 2025, Volume and Issue: 11(2), P. 140 - 140

Published: Feb. 17, 2025

Due to the intensification of global warming and greenhouse effect, exploration research sustainable sensors have become a direction people. Cellulose-based hydrogels, as new kind green material with strong plasticity, popular for sensor development. limited mechanical properties poor compatibility single-cellulose-based researchers modified them not only retain original excellent cellulose but also increase other properties, which has broadened field developing hydrogel sensors. From 2017 2020, cellulose-based were mainly used biosensing applications, focus on detection biomolecules. Since then, increasingly turned their attention pressure strain sensors, especially those that are flexible suitable wearable devices. This paper introduces modification hydrogels in detail, lists applications different functional directions, provides ideas application sensing, proves they great potential sensing.

Language: Английский

Citations

1
Growth of Silver Nanoparticles Embedded in a Polyacrylamide—Alginate Hybrid Hydrogel DOI Creative Commons
Sara Calistri, Chiara Ciantelli,

Vincenzo Cuzzola

et al.

Crystals, Journal Year: 2025, Volume and Issue: 15(3), P. 211 - 211

Published: Feb. 23, 2025

Hydrogels represent a versatile class of materials with remarkable potential as three-dimensional matrices for nanoparticle integration. This study explores the mechanism silver formation within polyacrylamide–alginate hybrid hydrogel, employing controlled reduction–oxidation reaction between nitrate (AgNO3) and sodium borohydride (NaBH4) across temperature gradient (5–70 °C). Characterization techniques, including Raman, infrared, UV-Vis spectroscopies, X-ray diffraction, scanning electron microscopy, were employed to analyze structural optical properties nanoparticles hydrogel. The results show that, rose, numbers decreased, while their size increased. Consistently octahedral in shape averaging 100–120 nm, these revealed temperature-dependent growth pattern, rare larger crystals emerging more frequently at higher temperatures. findings highlight hydrogels effective incorporation metal nanoparticles, paving way applications drug delivery, biosensing, antimicrobial treatments.

Language: Английский

Citations

1
Sandwich‐Structured Organogel with Asymmetric‐Adhesion and Adaptive Optical Regulation for Simultaneous Sensing of Human Motion and Temperature Without Interference DOI Open Access

Sijia Ge,

Shinian Liu,

Ying Kong

et al.

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

Published: March 3, 2025

Abstract The application of these NIPAm‐based temperature‐sensitive hydrogels in wearable sensing is limited by the inability to achieve a long‐lasting temperature response and adaptive optical regulation due water loss hydrogel, avoid phenomenon detachment external touch, mutual interference between stress signals. Here, sandwich‐structured organogel sensors (SOGS) are prepared based on solvent modulation interfacial fusion cross‐linking strategies asymmetric‐adhesion, regulation, simultaneous human motion without Modulation properties through hydrogen bonding glycol amide groups for long‐term (10–30 °C) infrared ultraviolet regulation. Adhesive conductive introduced under an strategy unilateral adhesion (67.28 kPa pig skin) sensing. intermediate layer prevents In conclusion, provides new idea developing novel responsive gels, facile method unilaterally adherent, interference‐resistant, multifunctional sensors.

Language: Английский

Citations

1
Cutting-Edge Hydrogel Technologies in Tissue Engineering and Biosensing: An Updated Review DOI Open Access
Nargish Parvin, Vineet Kumar, Sang Woo Joo

et al.

Materials, Journal Year: 2024, Volume and Issue: 17(19), P. 4792 - 4792

Published: Sept. 29, 2024

Hydrogels, known for their unique ability to retain large amounts of water, have emerged as pivotal materials in both tissue engineering and biosensing applications. This review provides an updated comprehensive examination cutting-edge hydrogel technologies multifaceted roles these fields. Initially, the chemical composition intrinsic properties natural synthetic hydrogels are discussed, highlighting biocompatibility biodegradability. The manuscript then probes into innovative scaffold designs fabrication techniques such 3D printing, electrospinning, self-assembly methods, emphasizing applications regenerating bone, cartilage, skin, neural tissues. In realm biosensing, hydrogels’ responsive nature is explored through integration optical, electrochemical, piezoelectric sensors. These sensors instrumental medical diagnostics glucose monitoring, pathogen detection, biomarker identification, well environmental industrial like pollution food quality monitoring. Furthermore, explores cross-disciplinary innovations, including use wearable devices, hybrid systems, potential personalized medicine. By addressing current challenges future directions, this aims underscore transformative impact advancing healthcare practices, thereby providing a vital resource researchers practitioners field.

Language: Английский

Citations

7
Transdermal drug-delivery motion-sensing hydrogels for movement recovery caused by external injury DOI
Chunyang Wang, Fangfang Wang, Jiankang Liu

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 488, P. 150998 - 150998

Published: April 4, 2024

Language: Английский

Citations

6
Design strategies for environmentally friendly polyvinyl alcohol hydrogel sensors: Research progress and Perspectives DOI
Zhenchun Li, Peng Liu, Xiangyu Li

et al.

Materials Today Communications, Journal Year: 2024, Volume and Issue: 39, P. 109401 - 109401

Published: May 31, 2024

Language: Английский

Citations

6