Fig. 25.

Three examples of fiber functionalization applied to the SAF system. (A) Noncovalent attachment of dye to fibers using charged peptides. Scale bar 10 μm. Reproduced with permission from Mahmoud and Woolfson¹⁰⁶, copyright Elsevier (2010). (B) In situ functionalization of azide-containing SAFs functionalized with biotin, followed by streptavidin–nanogold. The fibers contained purely azide-labeled P1, scale bar 200 nm. Reproduced with permission from Mahmoud et al.¹⁰⁵ copyright Elsevier (2011). (C) TEM images of silica tubes left behind after digestion of the peptide fibers. Scale bar 200 nm.

Reproduced with permission from Holmstrom et al.¹⁰⁷ copyright American Chemical Society (2008).