Peptide‐Fibers: Identification of Cysteine‐Rich Peptide‐Fiber by Specific Cysteine‐Au Nanoparticles Binding on Fiber Surface (Adv. Mater. Interfaces 9/2014)

Generally, it is very difficult to detect the precise location of specific amino acids in a 3D self-assembled structure. F. Besenbacher, M. Dong, and co-workers reveal in article 1400133 the possibility to find the position of cysteines exposed on cysteine-rich peptide fibers' surfaces. Gold nanoparticles (Au NPs) are employed as a probe to sense the presence of cysteines. In fact, the positions of the Au NPs along the fibers are correlated to the position of the exposed cysteines on the fiber surface.