A novel regenerated silk fibroin-based hydrogels with magnetic and catalytic activities
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- 作者：Kun-yuan Luo ; Zheng-zhong Shao 邵正中
- 关键词：Natural polymer ; Silk ; Hydrogel ; Nanoparticle ; Magnetic and catalytic activity
- 刊名：Chinese Journal of Polymer Science
- 出版年：2017
- 出版时间：April 2017
- 年：2017
- 卷：35
- 期：4
- 页码：515-523
- 全文大小：
- 刊物类别：Chemistry and Materials Science
- 刊物主题：Polymer Sciences; Industrial Chemistry/Chemical Engineering; Characterization and Evaluation of Materials; Condensed Matter Physics;
- 出版者：Chinese Chemical Society and Institute of Chemistry, CAS
- ISSN：1439-6203
- 卷排序：35
文摘
A simple and facile synthetic methodology for fabricating the regenerated silk fibroin (RSF)-based hydrogel which consisted of the in situ generated magnetic ferriferous oxide (Fe3O4) was developed. Using the co-precipitation of Fe2+ and Fe3+ within the RSF-based hydrogel with 90% RSF and 10% HPMC (hydroxypropyl methyl cellulose), the as-prepared RSF/Fe3O4 hydrogel not only showed high strength of saturation magnetization, but also exhibited excellent catalytic activities. For example, with the assistant of 3,3′,5,5′-tetramethylbenzidine (TMB), the RSF/Fe3O4 hydrogel could detect H2O2 at a concentration as low as 1 × 10−6 mol∙L−1. In addition, the catalytic activities were able to be maintained for a long term under various conditions. These findings suggest that the RSF-based materials can be endowed with interesting properties, and have great potential for the applications in the fields of biotechnology and environmental chemistry.