title: Realizing a two-dimensional ordered array of ferritin molecules directly on a solid surface utilizing carbonaceous material affinity peptides.
abstract: A two-dimensional hexagonally close-packed (2D-HCP) array of ferritin molecules with a nanoparticle core was fabricated directly on a carbonaceous solid substrate by genetically modifying the outer surface of the ferritin with carbonaceous materials-specific binding peptides. The displayed peptides endowed ferritins with a specific protein-substrate interaction and masked the strong nonspecific interaction. The specific interaction was weak enough to allow ferritins to be rearranged as well as an attractive protein-protein interaction that could be adjusted by selecting the buffer conditions. This method not only produced 2D-HCP arrays of ferritin but also 2D-ordered arrays of independent inorganic nanoparticles after protein elimination that can be applied to floating gate memories.
authors.affiliation: Advanced Technology Research Laboratories, Matsushita Electric Industrial Co., Ltd. (Panasonic), 3-4 Hikaridai, Seika-cho, Soraku-gun, Kyoto 619-0237, Japan.
authors.forename: Takuro
authors.initials: T
authors.lastname: Matsui
authors.forename: Nozomu
authors.initials: N
authors.lastname: Matsukawa
authors.forename: Kenji
authors.initials: K
authors.lastname: Iwahori
authors.forename: Ken-Ichi
authors.initials: K
authors.lastname: Sano
authors.forename: Kiyotaka
authors.initials: K
authors.lastname: Shiba
authors.forename: Ichiro
authors.initials: I
authors.lastname: Yamashita
mesh_terms: D000595:Amino Acid Sequence; D005293:Ferritins / Q000737:chemistry*; D008855:Microscopy, Electron, Scanning; D015394:Molecular Structure; D053758:Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure*; D010455:Peptides / Q000737:chemistry*
chemical_list: D010455:Peptides; D005293:Ferritins