Polyvinyl Alcohol (PVA)-Based Hydrogels: Recent Progress in Fabrication, Properties, and Multifunctional Applications

Polymers, Год журнала: 2024, Номер 16(19), С. 2755 - 2755

Опубликована: Сен. 29, 2024

Polyvinyl alcohol (PVA)-based hydrogels have attracted significant attention due to their excellent biocompatibility, tunable mechanical properties, and ability form stable three-dimensional networks. This comprehensive review explores the recent advancements in PVA-based hydrogels, focusing on unique fabrication strategies, multifunctional applications. Firstly, it discusses various facile synthesis techniques, including freeze/thaw cycles, chemical cross-linking, enhancement which led enhanced strength, elasticity, responsiveness external stimuli. These improvements expanded applicability of critical areas such as biomedical, environmental treatment, flexible electronics, civil engineering, well other emerging Additionally, integration smart functionalities, self-healing capabilities multi-responsiveness, is also examined. Despite progress, challenges remain, optimizing stability under varying conditions addressing potential toxicity cross-linkers. The concludes by outlining future perspectives, emphasizing fields like regenerative medicine, sustainability, advanced manufacturing. It underscores importance interdisciplinary collaboration realizing full these versatile materials address pressing societal challenges.

Язык: Английский

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From Sea Cucumbers to Soft Robots: A Photothermal-Responsive Hydrogel Actuator with Shape Memory

ACS Applied Materials & Interfaces, Год журнала: 2025, Номер unknown

Опубликована: Янв. 19, 2025

Soft robotics has undergone considerable progress driven by materials that can effectively transduce external stimuli into mechanical actuation. Here, we report the development of a photothermal-responsive hydrogel actuator with shape memory capabilities inspired adaptive locomotion sea cucumbers. This is based on cucumber peptides (SCP) and liquid metal (LM) network responsive to near-infrared (NIR) light. Upon NIR irradiation, undergoes phase transition from swollen collapsed state, resulting in controlled volumetric change. Incorporating polymer (SMP) matrix facilitates actuator's retention its deformed configuration following stimulus removal, thereby enabling intricate, multiphase transformations. SCP/LM overcomes limitations traditional hydrogels achieves good stretchability (3,000%) enough adhesion (21 kPa), exhibiting no toxicity human cells. Furthermore, exhibited significant bending complex deformation within 100 s exposure. offers new opportunities for soft biomedical applications, showcasing potential pathway incorporating next generation smart devices.

Язык: Английский

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Toward Intelligent Materials with the Promise of Self-Healing Hydrogels in Flexible Devices

Polymers, Год журнала: 2025, Номер 17(4), С. 542 - 542

Опубликована: Фев. 19, 2025

Flexible sensors are revolutionizing wearable and implantable devices, with conductive hydrogels emerging as key materials due to their biomimetic structure, biocompatibility, tunable transparency, stimuli-responsive electrical properties. However, fragility limited durability pose significant challenges for broader applications. Drawing inspiration from the self-healing capabilities of natural organisms like mussels, researchers embedding self-repair mechanisms into improve reliability lifespan. This review highlights recent advances in (SH) hydrogels, focusing on synthesis methods, healing mechanisms, strategies enhance multifunctionality. It also explores wide-ranging applications, including vivo signal monitoring, biochemical sensors, supercapacitors, flexible displays, triboelectric nanogenerators, bioelectronics. While progress has been made, remain balancing efficiency, mechanical strength, sensing performance. offers insights overcoming these obstacles discusses future research directions advancing SH hydrogel-based bioelectronics, aiming pave way durable, high-performance devices next-generation technologies.

Язык: Английский

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Hydrogel-Based Biointerfaces: Recent Advances, Challenges, and Future Directions in Human–Machine Integration

Gels, Год журнала: 2025, Номер 11(4), С. 232 - 232

Опубликована: Март 23, 2025

Human–machine interfacing (HMI) has emerged as a critical technology in healthcare, robotics, and wearable electronics, with hydrogels offering unique advantages multifunctional materials that seamlessly connect biological systems electronic devices. This review provides detailed examination of recent advancements hydrogel design, focusing on their properties potential applications HMI. We explore the key characteristics such biocompatibility, mechanical flexibility, responsiveness, which are essential for effective long-term integration tissues. Additionally, we highlight innovations conductive hydrogels, hybrid composite materials, fabrication techniques 3D/4D printing, allow customization to meet demands specific HMI applications. Further, discuss diverse classes polymers contribute conductivity, including conducting, natural, synthetic, polymers, emphasizing role enhancing electrical performance adaptability. In addition material examine regulatory landscape governing hydrogel-based biointerfaces applications, addressing considerations clinical translation commercialization. An analysis patent insights into emerging trends shaping future technologies human–machine interactions. The also covers range neural interfaces, soft haptic systems, where play transformative Thereafter, addresses challenges face issues related stability, scalability, while perspectives continued evolution technologies.

Язык: Английский

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A Comprehensive Review on Protein‐Based Hydrogels: From Structure Modification to Applications

ChemistrySelect, Год журнала: 2025, Номер 10(14)

Опубликована: Апрель 1, 2025

Abstract Protein‐based hydrogels have been widely used in the biomedical field since their good biocompatibility and adjustable physical properties, which are also similar to natural extracellular matrix. However, fragile mechanical properties single function of protein limited application. Usually, chemical modification proteins combination with other biological materials strategies improve performance hydrogels. This review first focused on method then introduced kinds protein‐based detail. In addition, we summarized applications drug delivery, wound dressing, tissue engineering, 3D printing, biosensors. Finally, highlighted challenges future prospects hydrogels, may provide a reference for design novel multifunctional

Язык: Английский

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Highly stretchable, self-healing, adhesive, 3D-printable and antibacterial double-network hydrogels for multifunctional wearable sensors

International Journal of Biological Macromolecules, Год журнала: 2024, Номер unknown, С. 138813 - 138813

Опубликована: Дек. 1, 2024

Язык: Английский

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