Natural Bombyx mori silk fibroin (SF) fibers were modified with 2-methacryloyloxyethyl isocyanate (MOI) first for the introduction of vinyl groups. Then, 1H,1H,2H,2H-perfuorodecanethiol was grafted onto the SF fibers via thiol-ene click chemistry using ultraviolet light. | Chemical modification of Bombyx mori silk fibers with vinyl groups for thiol-ene click chemistry