fibroina
Fibroina, or fibroin in English, is a fibrous protein that forms the structural core of silk fibers produced by certain arthropods, most notably the domesticated silkworm Bombyx mori. It is secreted by specialized silk glands and, after spinning, becomes the main load-bearing component of the silk filament, which is typically coated with sericin, a gummy protein that initially cements the fibers.
Molecular structure and composition: Silk fibroin is a high-molecular-weight protein that exists as a complex of
Biosynthesis and assembly: In silkworms, fibroin is produced in the posterior silk gland and assembled into
Properties and applications: Silk fibroin’s combination of strength, elasticity, and biocompatibility makes it valuable in textiles