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A novel method to photocrosslink silk fibroin protein is reported, using riboflavin (vitamin B2) as a photoinitiator and the mechanism of crosslinking is determined. Exposure of riboflavin‐doped liquid silk solution to light results in the formation of a transparent, elastic hydrogel. Several applications for this new material are investigated including corneal reshaping to restore visual acuity and...
Dissolved silk protein mixed with riboflavin can be crosslinked to form an elastic hydrogel in the presence of blue/violet light. Here, a photomask is used by F. G. Omenetto and co‐workers, as described on page 2417, to illuminate the solution, and the unpolymerized silk is rinsed away. These gels have tremendous potential to be used as corneal prostheses.
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