一种基于离子交联的氧化还原响应性聚合物凝胶。
A redox responsive polymeric gel based on ionic crosslinking.
作者信息
Fei Shih-To, Phelps Mwita V B, Wang Yang, Barrett Eric, Gandhi Farhan, Allcock Harry R
机构信息
Department of Chemistry, The Pennsylvania State University, University Park PA 16802, USA.
Department of Aerospace Engineering, The Pennsylvania State University, University Park PA 16802, USA.
出版信息
Soft Matter. 2006 Apr 18;2(5):397-401. doi: 10.1039/b516972k.
We report here an electrochemically responsive polymer hydrogel based on ionic crosslinking. The crosslinking by metal cations and anionic carboxylic acid side groups can be controlled by redox reactions. The crosslinks dissociate when the cation crosslinker is reduced to a lower oxidation state and reform following oxidation, which leads to a reversible and localized swelling-contraction. By choosing biocompatible components and miniaturization designs, the system has potential in microrobotic and biomedical applications.
我们在此报告一种基于离子交联的电化学响应性聚合物水凝胶。金属阳离子与阴离子羧酸侧基之间的交联可通过氧化还原反应进行控制。当阳离子交联剂还原为较低氧化态时，交联键解离，氧化后重新形成，这导致可逆的局部溶胀-收缩。通过选择生物相容性组分并进行小型化设计，该系统在微型机器人和生物医学应用中具有潜力。
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