Fibroin solution behavior

Ochi, A., Nemoto, N., Magoshi, J., Ohyama, E., and Hossain, K. S. (2002b). Rheological behaviors of aqueous solution of silk fibroin./. Soc. Rheol.Jpn 30, 289-294. 

The detailed behavior of the transition is important in understanding the mechanism of producing silk fibroins. The structural transition in the liquid silk of S.c. ricini was monitored using solution and solid-state C NMR spectroscopy.- The primary structure of silk fibroin from S.c. ricini is composed of polyalanine regions and glycine-rich regions alternately. ... 

The effect of casting solvent on the miscibility behavior of silk fibroin/PVF blends was investigated by Um et al. SF/PVA blend films cast from aqueous and formic acid solution. The p-sheet conformation of SF formed by formic acid casting was retained for aU SF blends regardless of blend ratio. SF/PVA blends from aqueous solution exhibited a phase-separated morphology and immiscibility by SEM observation and DMTA (Dynamic Mechanical Thermal Analysis) measurement (Um and Park 2007) (Figs. 10.35 and 10.36). 

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