Figure 1. Schematic synthesis strategy of the 1D Pt nanostructures.

The first step is I₃K self-assembly, leading to nanofibril formation (green column). The second step is anchoring of Pt NPs on the I₃K nanofibril surface in the presence or absence of P7A, leading to the formation of a well ordered array or a discrete distribution of the Pt nanostructures. P7A, a peptide capping agent, clearly alters the morphological patterns of the Pt nanostructures on the template surface.