Figure 1 – Schematic of wound healing in humans ........................................................ 3 Figure 2 – Schematic on DNA hairpin-based shape memory hydrogel............................ 5 Figure 3 – Schematics on how different studied self-healing systems work..................... 7 Figure 4 – DNA structure and the complementary base-pairing system ........................ 10 Figure 5 – Examples of DNA nanotechnology构造........................................................................................................................................................................................................................................................................................................................................................................................................................................................... 13图7 - 3D DNA折纸曲柄滑块结构.................................................to attach the DNA oligonucleotide crosslinks to the pAA chain ........................................................................................ 17 Figure 10 – Schematic illustrating how a free radical polymerization progresses........... 18 Figure 11 – DNA hairpin-dependent expansion of the pAA hydrogels in the 2017 study by Schulman et al................................................................................................................................................................................................................................................................................ 19图12 - PAA聚合反应的示意图............................................................................................................... 60分钟后的水凝胶形成.... 28图16 - 优化的PAA-SSDNA水凝胶............................................................................................................................................................................................... 29图17 - 对PAA凝胶优化的不同冷却设置的定性分析结果的结果.................................................................................................................................................................................................................................................................................反应混合物中存在的ssdna ................................................................................................................................................................................................................................................................................................................................................................................................................................. 30