Single-step fabrication of patterned gold film array by an engineered multi-functional peptide.

ABSTRACT: This study constitutes a demonstration of the biological route to controlled nano-fabrication via modular multi-functional inorganic-binding peptides. Specifically, we use gold- and silica-binding peptide sequences, fused into a single molecule via a structural peptide spacer, to assemble pre-synthesized gold nanoparticles on silica surface, as well as to synthesize nanometallic particles in situ on the peptide-patterned regions. The resulting film-like gold nanoparticle arrays with controlled spatial organization are characterized by various microscopy and spectroscopy techniques. The described bio-enabled, single-step synthetic process offers many advantages over conventional approaches for surface modifications, self-assembly and device fabrication due to the peptides' modularity, inher

SUBMITTER: Hnilova M 

PROVIDER: S-EPMC3711865 | biostudies-literature | 2012 Jan

REPOSITORIES: biostudies-literature