仿生自修复结构色水凝胶。
Bio-inspired self-healing structural color hydrogel.
机构信息
State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China.
State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
出版信息
Proc Natl Acad Sci U S A. 2017 Jun 6;114(23):5900-5905. doi: 10.1073/pnas.1703616114. Epub 2017 May 22.
Biologically inspired self-healing structural color hydrogels were developed by adding a glucose oxidase (GOX)- and catalase (CAT)-filled glutaraldehyde cross-linked BSA hydrogel into methacrylated gelatin (GelMA) inverse opal scaffolds. The composite hydrogel materials with the polymerized GelMA scaffold could maintain the stability of an inverse opal structure and its resultant structural colors, whereas the protein hydrogel filler could impart self-healing capability through the reversible covalent attachment of glutaraldehyde to lysine residues of BSA and enzyme additives. A series of unprecedented structural color materials could be created by assembling and healing the elements of the composite hydrogel. In addition, as both the GelMA and the protein hydrogels were derived from organisms, the composite materials presented high biocompatibility and plasticity. These features of self-healing structural color hydrogels make them excellent functional materials for different applications.
通过将含有葡萄糖氧化酶 (GOX) 和过氧化氢酶 (CAT) 的戊二醛交联牛血清白蛋白 (BSA) 水凝胶添加到甲基丙烯酰化明胶 (GelMA) 反蛋白石支架中，开发出了受生物启发的自修复结构色水凝胶。具有聚合 GelMA 支架的复合水凝胶材料可以保持反蛋白石结构及其产生的结构颜色的稳定性，而蛋白质水凝胶填料可以通过戊二醛与 BSA 赖氨酸残基的可逆共价附着和酶添加剂赋予自修复能力。通过组装和修复复合水凝胶的元素，可以创造出一系列前所未有的结构色材料。此外，由于 GelMA 和蛋白质水凝胶均源自生物体，因此复合材料具有出色的生物相容性和可塑造性。自修复结构色水凝胶的这些特性使它们成为各种应用的优秀功能材料。
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