【作者】 陈卓； 郑金鑫； 王猛； 张达； 赵荣慧； 张新宇； 邓奎林；

【Author】 Zhuo Chen;Jinxin Zheng;Meng Wang;Da Zhang;Ronghui Zhao;Xinyu Zhang;Kuilin Deng;College of Chemistry & Environmental Science Hebei University;Department of Chemical Engineering Auburn University;

【机构】 河北大学化学与环境科学学院； 奥本大学化学工程系；

【摘要】 导电水凝胶（CHs）由于其与软组织结构相似在生物医学工程中得到了广泛的应用。然而,设计具有良好的机械性能又兼顾良好的生物相容性的CHs仍然是一个挑战性的课题。在此,我们利用天然果胶（Pct）骨架作为分子模板,控制导电聚吡咯（PPy）纳米棒在水凝胶网络中的原位形成,从而制备出具有良好导电性、机械性能和生物相容性的CHs。在水凝胶中疏水性PPy纳米棒均匀分布并与亲水性聚合物相结合,促进了高度互联的导电路径的形成,使水凝胶具有高导电性。通过Fe³⁺螯合Pct和形成PPy纳米棒,CHs表现出显著的力学性能。总之,利用生物大分子模板诱导PPy纳米结构的形成是多功能导电水凝胶制备的有效方法之一。更多还原

【Abstract】 Conductive hydrogels（CHs） have been widely used in biomedical engineering due to their similar structure to soft tissues.However,designing CHs with both good mechanical properties and good biocompatibility is still a challenging topic.Here,we use the pectin（Pct） skeleton as the molecular template to control the in-situ formation of conductive polypyrrole（PPy） nanorods in the hydrogel network,so as to prepare good conductivity,mechanical properties and biocompatibility of CHs.The hydrophobic PPy nanorods are uniformly distributed in the hydrogel and combined with the hydrophilic polymer,which promotes the formation of highly interconnected conductive paths,and makes the hydrogel highly conductive.Through Fe³⁺ chelating Pct and PPy nanorods forming,CHs can exhibit significant mechanical properties.In conclusion,the use of biopolymer molecular templates to induce the formation of PPy nanostructures is one of the effective methods for the preparation of multifunctional conductive hydrogels.更多还原