Electrochemical redox responsive supramolecular self-healing hydrogels based on host–guest interaction
Electrochemical redox responsive supramolecular self-healing hydrogels based on host–guest interaction
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DOI：
10.1039/c5py00296f
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发表时间：
2015-05
影响因子：
4.6
通讯作者：
Liao Peng;Huijuan Zhang;Anchao Feng;Meng Huo;Zilin Wang;Jin Hu;Weiping Gao;Jinying Yuan
中科院分区：
文献类型：
--
作者：
Liao Peng;Huijuan Zhang;Anchao Feng;Meng Huo;Zilin Wang;Jin Hu;Weiping Gao;Jinying Yuan
以两种聚合物为侧基，通过β-环糊精(β-CD)与二茂铁(FC)的主客体相互作用，制备了超分子水凝胶。在正电位(或氧化剂)和负电位(或还原剂)交替刺激下，观察到可逆凝胶-溶胶转变。由于主客体的动态相互作用，该水凝胶不仅具有良好的自愈能力，而且在温和的条件下制备，能够对适度的电化学刺激做出响应。良好的生物相容性使其在组织工程和药物释放领域具有潜在的实用和现实应用价值。
A supramolecular hydrogel was prepared through the host–guest interaction between β-cyclodextrin (β-CD) and ferrocene (Fc) with two polymers as pendant groups. Reversible gel–sol transition was observed with the alternative stimuli of a positive potential (or an oxidant) and a negative potential (or a reductant). The hydrogel not only had good self-healing ability due to the dynamic host–guest interaction, but also was prepared under mild conditions and could respond to moderate electrochemical stimuli. Good biocompatibility endowed the hydrogel with potential practical and real-life applications, especially in tissue engineering and drug release field.