Injectable Electroactive Hydrogels Formed via Host鈥揋uest Interactions

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• 作者：Yaobin Wu ; Baolin Guo ; Peter X. Ma
• 刊名：ACS Macro Letters
• 出版年：2014
• 出版时间：November 18, 2014
• 年：2014
• 卷：3
• 期：11
• 页码：1145-1150
• 全文大小：359K
• ISSN：2161-1653

文摘

Injectable conducting hydrogels (ICHs) are promising conductive materials in biomedicine and bioengineering fields. However, the synthesis of ICHs in previous work involved chemical cross-linking, and this may result in biocompatibility problems of the hydrogels. We present the successful synthesis of ICHs via noncovalent host鈥揼uest interactions, avoiding the side effect of covalent chemical cross-linking. The ICHs are based on the 纬-cyclodextrin dimer as the host molecule and tetraaniline and poly(ethylene glycol) as the guests in a synthetic well-defined hydrophilic copolymer. The sol鈥揼el transition mechanism of the in situ hydrogel is thoroughly investigated. This novel synthesis approach of ICHs via supramolecular chemistry will lead to various new biomedical applications for conducting polymers.