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IF 6.5 2区材料科学 Q1 MATERIALS SCIENCE, COMPOSITES

Composites Communications Pub Date : 2025-03-10 DOI:10.1016/j.coco.2025.102342

Yanwen Xiao , Qiaoyu Huang , Yong Hu , Yige Chen , Man Zhou , Zhaoxia Chen , Xueliang Jiang , Yuhong Zhang

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引用次数: 0

摘要

制造具有优异导电性、粘附性、抗菌性和生物相容性的导电水凝胶柔性可穿戴传感器仍是一项挑战。在此，我们制备了一种电性稳定的多功能聚（乙烯醇）/季铵壳聚糖-锂离子导电水凝胶（PVA/HACC-Li+）。由 Li+ 和 HACC 调节的 PVA 基水凝胶具有高导电性（12.35 毫秒/厘米）、高拉伸性（∼372 %）、优异的抗菌性（可有效抑制大肠杆菌和金黄色葡萄球菌）和非常好的生物相容性（L929 细胞存活率为 108.76 %）。此外，PVA/HACC-Li+ 水凝胶还成功地用作了应变传感器，能准确识别人体不同关节和肌肉细微运动的信号，具有灵敏度高（GF = 2.42）、感应范围广（0-300 %）和响应时间快（183 ms）等特点。因此，这项研究为多功能水凝胶在运动监测领域的应用提供了一种可行的方法，并为可穿戴电子皮肤的多样化应用提供了实际参考。

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Polyvinyl alcohol/quaternary ammonium chitosan hydrogels with excellent conductivity, adhesion, antibacterial and biocompatibility for wearable sensors

Creating conductive hydrogel flexible wearable sensors with excellent conductivity, adhesion, antibacterial and biocompatibility still poses a challenge. Herein, an electrically stable multifunctional poly (vinyl alcohol)/quaternary ammonium chitosan-lithium ion conducting hydrogel (PVA/HACC-Li⁺) was fabricated. PVA-based hydrogels regulated by Li⁺ and HACC have high electrical conductivity (12.35 ms/cm), high stretchability (∼372 %), excellent antibacterial properties, effectively inhibiting both Escherichia coli and Staphylococcus aureus, and very good biocompatibility (L929 cell survival rate of 108.76 %). Moreover, PVA/HACC-Li⁺ hydrogel successfully serve as strain sensor, which can accurately identify different joint and subtle muscle movements signals of the human body with high sensitivity (GF = 2.42), wide sensing range (0–300 %) and fast response time (183 ms). Thus, this endeavor offers a feasible method for utilizing versatile multifunctional hydrogels in the field of motion monitoring and serves a practical reference for the diverse applications within wearable electronic skin.

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来源期刊

Composites Communications Materials Science-Ceramics and Composites

CiteScore

12.10

自引率

10.00%

发文量

340

审稿时长

36 days

期刊介绍： Composites Communications (Compos. Commun.) is a peer-reviewed journal publishing short communications and letters on the latest advances in composites science and technology. With a rapid review and publication process, its goal is to disseminate new knowledge promptly within the composites community. The journal welcomes manuscripts presenting creative concepts and new findings in design, state-of-the-art approaches in processing, synthesis, characterization, and mechanics modeling. In addition to traditional fiber-/particulate-reinforced engineering composites, it encourages submissions on composites with exceptional physical, mechanical, and fracture properties, as well as those with unique functions and significant application potential. This includes biomimetic and bio-inspired composites for biomedical applications, functional nano-composites for thermal management and energy applications, and composites designed for extreme service environments.