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. Author manuscript; available in PMC: 2014 Mar 6.
Published in final edited form as: J Am Chem Soc. 2013 Feb 14;135(9):3675–3679. doi: 10.1021/ja312647n

Figure 2.

Figure 2

Schematic for retinal modification of the lysine residues in the silk-elastin copolymer PS2E8K. Insert: Chemical reactions for PS2E8K before and after retinal modification (Left: PS2E8K in DMSO solution; Middle: retinal molecules in DMSO solution; Right: retinal-modified PS2E8K in DMSO solution).