Dithiophene chemosensor for ultrasensitive intracellular detection of Al3+: Design, DFT analysis, and ESIPT-PET mechanisms

Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy, Journal Year: 2025, Volume and Issue: 339, P. 126244 - 126244

Published: April 15, 2025

Language: Английский

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pH‐Driven Multilevel Controllable Injectable Hydrogel for Wound Sealing

Journal of Applied Polymer Science, Journal Year: 2025, Volume and Issue: unknown

Published: March 29, 2025

ABSTRACT While various biomedical sealants exist, many suffer from several drawbacks. For example, hydrogels with superior sealing properties often exhibit limitations such as conflict‐free, individual, and flexible control over injectability gel physical properties, well regarding applications in diverse scenarios. This article presents PL/OHA, a pH‐driven injectable hydrogel sealant designed for wound sealing. PL/OHA employs dynamic bonds, including Schiff base hydrogen to produce biodegradable biocompatible sealant. By individually adjusting the pH value solid content, gelation time, mechanical adhesion strength of can be flexibly controlled meet different requirements wound‐sealing contexts. Experiments prove that injection time controlled, seconds tens minutes, by changing value. It also exhibits adjustable properties. When content is increased 24% 36%, tensile increases 10.12 25.12 kPa, compressive 97.50 516.61 kPa. remarkable antibacterial activity, healing promotion capacity, excellent biocompatibility. These make it promising candidate future clinical

Language: Английский

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Recent Progress in Cellulose-Based Conductive Hydrogels

Polymers, Journal Year: 2025, Volume and Issue: 17(8), P. 1089 - 1089

Published: April 17, 2025

Cellulose, a widely abundant natural polymer, is well recognized for its remarkable properties, such as biocompatibility, degradability, and mechanical strength. Conductive hydrogels, with their unique ability to conduct electricity, have attracted significant attention in various fields. The combination of cellulose conductive hydrogels has led the emergence cellulose-based which show great potential flexible electronics, biomedicine, energy storage. This review article comprehensively presents latest progress hydrogels. Firstly, it provides an in-depth overview cellulose, covering aspects like structure, diverse sources, classification. emphasizes cellulose’s role renewable versatile material. development applications different forms including delignified wood, bacterial nanocellulose, modified are elaborated. Subsequently, introduced, focus on network structures, single-network, interpenetrating network, semi-interpenetrating network. construction then discussed detail. includes forms, classified into electronic ionic key performance requirements, cost-effectiveness, property regulation, sensitive response environmental stimuli, self-healing ability, stable conductivity, multifunctionality. multiple areas also presented. In wearable sensors, they can effectively monitor human physiological signals real time. intelligent contribute wound healing, tissue engineering, nerve regeneration. supercapacitors, offer green sustainable gel electrolytes conventional batteries, help address critical issues lithium dendrite growth. Despite progress, there still challenges overcome. These include enhancing multifunctionality intelligence strengthening connection artificial intelligence, achieving simple, green, large-scale industrial production. Future research directions should center around exploring new synthesis methods, optimizing material expanding emerging fields, aiming promote widespread commercialization these materials.

Language: Английский

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Functional Hydrogels for Wearable Electronics

Macromolecular Chemistry and Physics, Journal Year: 2025, Volume and Issue: unknown

Published: April 18, 2025

Abstract Functional‐hydrogel‐based wearable sensors are a rapidly evolving field in the modern era due to their various attractive features. Functional hydrogels have great ability for multiple applications because of unusual combination biocompatibility, flexibility, and responsiveness different stimuli. Wearable electronics illustrate next‐generation technology, seamlessly incorporating sophisticated features into everyday accessories provide continuous health monitoring, real‐time data collecting, improved human–computer interactions. This review provides an extensive summary state functional electronics. The basic ideas behind first introduced, emphasizing how they work together harmoniously. types synthesis methods hydrogels, including chemical physical cross‐linking methods, highlighted. A comprehensive investigation is carried out intrinsic properties conductivity, mechanical strength, stimuli‐responsiveness. Subsequently, explored electronics, motion sensors, electrophysiological respiratory gas body fluid biomarker wound healing monitoring. Recent developments valuable used show these materials can revolutionize design technology. researchers traversing interdisciplinary fields polymer, bioelectronics, chemistry.

Language: Английский

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

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

Published: April 22, 2025

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

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