title: Charge transfer through DNA nanoscaled assembly programmable with DNA building blocks.
abstract: DNA nanostructures based on programmable DNA molecular recognition have been developed, but the nanoelectronics of using DNA is still challenging. A more rapid charge-transfer (CT) process through the DNA nanoassembly is required for further development of programmable DNA nanoelectronics. In this article, we present direct absorption measurements of the long-range CT over a 140-A DNA assembly based on a GC repetitive sequence constructed by simply mixing DNA building blocks. We show that a CT through DNA nanoscale assembly is possible and programmable with the designed DNA sequence.
authors.affiliation: Institute of Scientific and Industrial Research (SANKEN), Osaka University, Mihogaoka 8-1, Ibaraki, Osaka 567-0047, Japan.
authors.forename: Yasuko
authors.initials: Y
authors.lastname: Osakada
authors.forename: Kiyohiko
authors.initials: K
authors.lastname: Kawai
authors.forename: Mamoru
authors.initials: M
authors.lastname: Fujitsuka
authors.forename: Tetsuro
authors.initials: T
authors.lastname: Majima
mesh_terms: D001483:Base Sequence; D004247:DNA / Q000138:chemical synthesis* / Q000737:chemistry; D007700:Kinetics; D008969:Molecular Sequence Data; D049329:Nanostructures; D013696:Temperature
chemical_list: D004247:DNA