基于配位键和动态亚胺键的高强度、导电、双网络自愈合抗菌水凝胶

IF 2.3 4区 化学 Q3 POLYMER SCIENCE
Yalei Liu, Junfang Chang, Zhiyong Guo, Sui Wang, Jie Mao
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引用次数: 0

摘要

多功能水凝胶材料正越来越多地应用于可穿戴传感设备和生物医学领域,但水凝胶材料的综合性能还有待进一步提高。为了制备具有更好自愈合性能的水凝胶,我们以海藻酸钠和羧甲基壳聚糖等生物大分子为原料,将这两种材料形成的动态亚胺键网络与丙烯酸和铝离子形成的配位键网络相结合。水凝胶的双网络结构使水凝胶具有优异的自愈合性能(自愈合后韧性恢复高达 127%)和良好的机械性能,断裂应变高达 3787%。水凝胶网络中的抗菌物质可抑制大肠杆菌和金黄色葡萄球菌的生长。此外,水凝胶还具有良好的导电性,导电率为 1.41 S/m。这项研究考察了水凝胶的多种特性,为这种材料在实际应用场景中的应用提供了参考。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

High-strength, conductive, double-network self-healing antibacterial hydrogel based on the coordination bond and dynamic imine bond

High-strength, conductive, double-network self-healing antibacterial hydrogel based on the coordination bond and dynamic imine bond

Multifunctional hydrogel materials are being increasingly used in wearable sensing devices and biomedical applications, but the comprehensive performance of hydrogel materials must be further developed. To prepare hydrogels with better self-healing properties, biomacromolecules such as sodium alginate and carboxymethyl chitosan were used as raw materials by combining the dynamic imine bonding network formed by both materials with the coordination bonding network formed by acrylic acid and aluminum ions. The double network structure of the hydrogel provides the hydrogel with excellent self-healing properties (up to 127% recovery of toughness after self-healing) and good mechanical properties with a fracture strain of 3787%. Substances with antimicrobial properties in the hydrogel network inhibited the growth of E. coli and S. aureus. In addition, the hydrogel has good electrical conductivity with a conductivity of 1.41 S/m. This study examined multiple properties of the hydrogel and provides a reference for the application of this material in practical application scenarios.

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来源期刊
Polymer Journal
Polymer Journal 化学-高分子科学
CiteScore
5.60
自引率
7.10%
发文量
131
审稿时长
2.5 months
期刊介绍: Polymer Journal promotes research from all aspects of polymer science from anywhere in the world and aims to provide an integrated platform for scientific communication that assists the advancement of polymer science and related fields. The journal publishes Original Articles, Notes, Short Communications and Reviews. Subject areas and topics of particular interest within the journal''s scope include, but are not limited to, those listed below: Polymer synthesis and reactions Polymer structures Physical properties of polymers Polymer surface and interfaces Functional polymers Supramolecular polymers Self-assembled materials Biopolymers and bio-related polymer materials Polymer engineering.
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