Vol.3 No.5 (September 2013)
Instantaneous Gelatination of Silk Fibroin Solution
>Protein solution has a tendency of gelation. For silk fibroin solution, it needs more than ten days to gel at room temperature. This paper proposes an efficient method to promote instant silk fibroin gelatinization. SEM analysis showed that the instantaneous silk hydrogel had a porous three-dimensional network structure with random curves crossed inside. Besides, there are a lot of micro globular structures cross-boned together. The results from X-ray Dif- fraction (XRD) and Fourier Transform Infrared spectrum (FTIR) showed that the molecular structure of silk fibroin has little change and maintains random coils during the rapid gelation process. This kind of instantaneous hydrogel has ex- cellent mechanical properties and moisture retention performance, so it can be used for moisturizing cosmetics and tis- sue engineering material.
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