In this work, a biocompatible poly(N-hydroxyethyl acrylamide) (PHEAA) polymer with hydrogen bonding acceptors and donors in its side chains is prepared and mixed with tannic acid (TA) to form a supramolecular coacervate hydrogel (TAHE) due to multiple hydrogen-bonding interactions between TA and PHEAA. The coacervate TAHE hydrogel exhibits not only self-healing and antibacterial properties, but also strong adhesion to various substrates, with average adhesion strengths of 722 kPa, 522 kPa, 484 kPa, and 322 kPa to the substrates of iron, PMMA, ceramics, and glass, respectively. Notably, the hydrogel reformed by the rehydration of freeze-dried and ground TAHE hydrogel powder retains the initial adhesive performance and exhibits an excellent hemostatic ability. This novel adhesive hydrogel holds great potential as an adhesive hemostatic material for self-rescue in emergency situations.

中文翻译：

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具有抗菌和止血活性的强氢键诱导凝聚层粘合水凝胶的制备。

在这项工作中，制备了在侧链中具有氢键受体和供体的生物相容性聚（N-羟乙基丙烯酰胺）（PHEAA）聚合物，并与单宁酸（TA）混合以形成由于多氢而形成的超分子凝聚水凝胶（TAHE） TA和PHEAA之间的键合相互作用。凝聚的TAHE水凝胶不仅具有自修复和抗菌性能，而且还具有对各种基材的强粘合性，对铁，PMMA，陶瓷和陶瓷的基材的平均粘合强度分别为722 kPa，522 kPa，484 kPa和322 kPa。玻璃。值得注意的是，通过冻干和研磨的TAHE水凝胶粉末的再水化而重整的水凝胶保留了最初的粘合性能，并表现出出色的止血能力。