Zwitterionic Hydrogels Based on a Degradable Disulfide Carboxybetaine Cross-Linker.

Zwitterionic Hydrogels Based on a Degradable Disulfide Carboxybetaine Cross-Linker.
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DOI:
10.1021/acs.langmuir.8b02100
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发表时间:
2019-02-05
期刊:
Langmuir : the ACS journal of surfaces and colloids
影响因子:
--
通讯作者:
Jiang S
Jiang S
中科院分区:
其他
文献类型:
--
作者:
Jain P;Hung HC;Li B;Ma J;Dong D;Lin X;Sinclair A;Zhang P;O'Kelly MB;Niu L;Jiang S

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我们报道了一种两性离子型羧基甜菜碱二硫化物交联剂(CBX-SS)的合成以及使用这种交联剂制备的可生物降解的聚(羧基甜菜碱)(PCB)水凝胶和纳米笼(NC)。CBX-SS的结构结合了两性离子羧基甜菜碱以赋予防污性能和二硫键以促进降解。研究了CBX-SS交联PCB水凝胶的物理、力学和污垢特性。然后,CBX-SS交联水凝胶的降解特性进行了评估,通过其重量损失和释放的封装蛋白质在还原环境中。此外,CBX-SS被用于制备可降解PCB NC。结果显示,将高免疫原性酶尿酸酶包封在可降解PCB NC中消除或防止了对蛋白质和聚合物的体内免疫应答。
We report the synthesis of a zwitterionic carboxybetaine disulfide cross-linker (CBX-SS) and biodegradable poly(carboxybetaine) (PCB) hydrogels and nanocages (NCs) made using this cross-linker. The structure of CBX-SS combines zwitterionic carboxybetaine to confer nonfouling properties and a disulfide linkage to facilitate degradation. The physical, mechanical, and fouling characteristics of PCB hydrogels cross-linked with CBX-SS were investigated. Then, the degradation characteristics of CBX-SS- cross-linked hydrogels were evaluated through their weight loss and release of an encapsulated protein in a reducing environment. Furthermore, CBX-SS was applied to prepare degradable PCB NCs. Results show that encapsulating the highly immunogenic enzyme uricase in degradable PCB NCs eliminates or prevents an in vivo immune response to both the protein and polymer.
基于聚(羧基甜菜碱)酯类似物的坚固且可恢复的超低污垢涂层的开发
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