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Polysaccharide-based recoverable double-network hydrogel with high strength and self-healing properties.
Journal of Materials Chemistry B ( IF 6.1 ) Pub Date : 2020-01-06 , DOI: 10.1039/c9tb01679a Kun Lei 1 , Zhao Li 2 , Dandan Zhu 1 , Chengyuan Sun 1 , Yunlong Sun 1 , Chongchong Yang 1 , Zhen Zheng 1 , Xinling Wang 1
Journal of Materials Chemistry B ( IF 6.1 ) Pub Date : 2020-01-06 , DOI: 10.1039/c9tb01679a Kun Lei 1 , Zhao Li 2 , Dandan Zhu 1 , Chengyuan Sun 1 , Yunlong Sun 1 , Chongchong Yang 1 , Zhen Zheng 1 , Xinling Wang 1
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Polysaccharide-based hydrogels (PSBHs) have received significant attention for numerous bio-applications due to their biocompatibility and non-immunogenic performance. However, the construction of PSBH with superior mechanical properties by a simple method is rarely adequately researched. This study focuses on the construction of a novel PSBH with superior mechanical and recoverable properties by integrating the synergistic and complementary interactions of covalent bond-associated oxidized sodium alginate (SA-CHO) gel and hydrogen bond-associated agarose (Aga) gel. With the synergy and complementarity of the SA-CHO and Aga networks, the hydrogel exhibited 17 and 15 times (20 and 9 times) greater compressive stress and modulus, respectively, compared with the SA-CHO gel (Aga gel). The hydrogel also displayed excellent fatigue resistance, recurrent shapeability, acid resistance and recovery ability, as well as self-healing ability. This study provides a unique perspective for enhancing the mechanical properties of PSBH through the synergy and complementarity of different kinds of polysaccharides without sacrificing the functionality of the PSBH.
中文翻译：
具有高强度和自我修复特性的基于多糖的可回收双网络水凝胶。
基于多糖的水凝胶（PSBH）由于其生物相容性和非免疫原性性能而在众多生物应用中受到了广泛关注。然而，很少有人通过简单的方法来构造具有优异机械性能的PSBH。这项研究致力于通过整合共价键相关的氧化海藻酸钠（SA-CHO）凝胶和氢键相关的琼脂糖（Aga）凝胶的协同和互补相互作用，构建具有优异机械和可回收特性的新型PSBH。与SA-CHO凝胶（Aga凝胶）相比，具有SA-CHO和Aga网络的协同作用和互补性，水凝胶的压缩应力和模量分别高17倍和15倍（20倍和9倍）。水凝胶还显示出优异的抗疲劳性，循环成形性，耐酸性和恢复能力以及自我修复能力。这项研究提供了一种独特的观点，即通过不同种类的多糖的协同作用和互补性来增强PSBH的机械性能，而不牺牲PSBH的功能。
更新日期：2020-01-06
中文翻译：
具有高强度和自我修复特性的基于多糖的可回收双网络水凝胶。
基于多糖的水凝胶（PSBH）由于其生物相容性和非免疫原性性能而在众多生物应用中受到了广泛关注。然而，很少有人通过简单的方法来构造具有优异机械性能的PSBH。这项研究致力于通过整合共价键相关的氧化海藻酸钠（SA-CHO）凝胶和氢键相关的琼脂糖（Aga）凝胶的协同和互补相互作用，构建具有优异机械和可回收特性的新型PSBH。与SA-CHO凝胶（Aga凝胶）相比，具有SA-CHO和Aga网络的协同作用和互补性，水凝胶的压缩应力和模量分别高17倍和15倍（20倍和9倍）。水凝胶还显示出优异的抗疲劳性，循环成形性，耐酸性和恢复能力以及自我修复能力。这项研究提供了一种独特的观点，即通过不同种类的多糖的协同作用和互补性来增强PSBH的机械性能，而不牺牲PSBH的功能。
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