Structural Changes of Silk Fibroin Membranes Induced by Immersion in Methanol Aqueous Solutions M. Tsukada, Y. Gotoh, M. Nagura, N. Minoura, N. Kasai, and G. Freddi [J. Polym. Sci.: Part B: Polym. Phys., Vol.32, pp.961-968, 1994]
