上游充通大学 SHANGHAI JIAO TONG UNIVERSITY (a) Fibril Stratified structure Fibril is aggregate made Fibroin is bundle made of sericin from many microfibrils from many fibrils Aperture of Fibroin microfibril Cocoon_fiber Crystal region、. Molecular conformation of fibroin in crystal region (b) Amorphous region- (c) 蚕丝素蛋白纤维 Crystal 的不规则性 -region Amorphous region (d) Bio-macromolecules蚕丝素蛋白纤维 的不规则性