title: Plasmonic staining of DNA molecules with photo-induced Ag nanoparticles monitored using dark-field microscopy.
abstract: We demonstrate a dark-field microscopic technique for real-time monitoring of DNA metallization. The growth of silver nanoparticles on DNA molecules was observed using plasmon resonance light scattering in the presence of a weak catalyst triggering photo-reduction of Ag(+). This simple strategy could facilitate the controlled fabrication of DNA-templated nanoelectronic devices.
authors.affiliation: National Institute of Advanced Industrial Science and Technology (AIST), Takamatsu, Kagawa 761-0395, Japan. ys-yamamoto@aist.go.jp
authors.forename: Yuko S
authors.initials: YS
authors.lastname: Yamamoto
authors.forename: Ken
authors.initials: K
authors.lastname: Hirano
authors.forename: Tomomi
authors.initials: T
authors.lastname: Ishido
authors.forename: Takao
authors.initials: T
authors.lastname: Yasui
authors.forename: Norio
authors.initials: N
authors.lastname: Murase
authors.forename: Yoshinobu
authors.initials: Y
authors.lastname: Baba
authors.forename: Tamitake
authors.initials: T
authors.lastname: Itoh
mesh_terms: D004247:DNA / Q000737:chemistry*; D004581:Electronics; D053768:Metal Nanoparticles / Q000737:chemistry*; D010084:Oxidation-Reduction; D012834:Silver / Q000737:chemistry*; D020349:Surface Plasmon Resonance
chemical_list: D012834:Silver; D004247:DNA