A Novel Regenerated Silk Fibroin-based Hydrogels with Magnetic and Catalytic Activities

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 （Fe304） was developed. Using the co-precipitation of Fe2＋ and Fe3＋ within the RSF-based hydrogel with 90% RSF and 10% HPMC （...

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Bibliographic Details
Published in:Chinese journal of polymer science 2017-04, Vol.35 (4), p.515-523
Main Authors: Luo, Kun-yuan, Shao, Zheng-zhong
Format: Article
Language:English
Subjects:
Biotechnology
Catalytic activity
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Condensed Matter Physics
Coprecipitation
Environmental chemistry
High strength
Hydrogels
Hydrogen peroxide
Industrial Chemistry/Chemical Engineering
Iron oxides
Magnetic saturation
Oxides
Polymer Sciences
Saturation (magnetic)
Silk fibroin
催化活性
再生丝素蛋白
四氧化三铁
四甲基联苯胺
水凝胶
磁性
羟丙基甲基纤维素
饱和磁化强度
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Summary: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 （Fe304） 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/Fe304 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/Fe304 hydrogel could detect H202 at a concentration as low as 1 x 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.
ISSN:0256-7679
1439-6203
DOI:10.1007/s10118-017-1910-0