1. Structures, mechanical properties and applications of silk fibroin materials
丝素蛋白材料的结构、力学性能及应用
Fig. 1. In vivo processing in silk glands and natural spinning by silkworms to produce fibroin fibers with unique features
Fig. 2. Bombyx mori silkworm silk in various morphologies. (A) The raw silk consists of two fibroin fibers held together with a layer of sericin on their surfaces. After degumming to remove sericin, the fibroin fibers are dissolved in lithium bromide solution followed by dialyzing against ultrapure water or polyethylene glycol to obtain regenerated fibroin solution [12], (B) Mature silkworm and produced cocoon [13], (C) Silk braided [14], knitted [15], and non-woven matrices [16] constructed from the fibroin fibers, (D) Silk sponges [17], hydrogels [11], films [11], nanofibrous mats [11], microparticles [11], and microneedles [18] constructed from the regenerated fibroin solution.
