Preparation and Characterization of a Novel Hybrid Hydrogel Composed of Bombyx mori Fibroin and Poly(N-isopropylacrylamide)

Figure 5

For F5P3, the G^′′ is about one order of magnitude larger than the G^′ initially after mixing of silk fibroin and PNIPAAm aqueous solutions. As the system ages, the G^′ increases rapidly and crosses over G^′′ about 8 min after mixing with a sweep frequency of 0.5 Hz, while the crossing of G^′ over G^′′ occurred about 80 min later when the sweep frequency was set to 1.5 Hz. The complex modulus G* shows slight difference at varied sweep frequency.

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