title: Nonvolatile flash memory based on biologically integrated hierarchical nanostructures.
abstract: The first six peptides of multifunctional titanium binding peptide-1 bestowed recombinant L-ferritin, minT1-LF, was genetically engineered and used to fabricate multilayered nanoparticle architecture. The multifunctionality of minT1-LF enables specific binding of nanoparticle-accommodated minT1-LF to the silicon substrate surface and wet biochemical fabrication of gate oxide layer by its biomineralization activity. Three-dimensional (3D) nanoparticle architecture with multilayered structure was fabricated by the biological layer-by-layer method and embedded in a metal oxide-semiconductor device structure as a charge storage node of a flash memory device. The 3D-integrated multilayered nanoparticle architecture successfully worked as a charge storage node in flash memory devices that exhibited improved charge storage capacity compared with that of a conventional monolayer structure device.
authors.affiliation: Division of Protein Engineering, Cancer Institute, Japanese Foundation for Cancer Research , Koto, Tokyo 135-8550, Japan.
authors.forename: Ken-Ichi
authors.initials: K
authors.lastname: Sano
authors.forename: Atsushi
authors.initials: A
authors.lastname: Miura
authors.forename: Shigeo
authors.initials: S
authors.lastname: Yoshii
authors.forename: Mitsuhiro
authors.initials: M
authors.lastname: Okuda
authors.forename: Megumi
authors.initials: M
authors.lastname: Fukuta
authors.forename: Yukiharu
authors.initials: Y
authors.lastname: Uraoka
authors.forename: Takashi
authors.initials: T
authors.lastname: Fuyuki
authors.forename: Ichiro
authors.initials: I
authors.lastname: Yamashita
authors.forename: Kiyotaka
authors.initials: K
authors.lastname: Shiba
mesh_terms: D046529:Microscopy, Electron, Transmission; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure; D012666:Semiconductors; D014835:Volatilization