title: Nanohybridization of silica-coated Au nanorods and silica nanoballs.
abstract: We report on the successful surface passivation of various aspect ratios, in the range of 1.5-12, Au-nanorods by silica. A coating layer thickness in the range of 2 nm-50 nm was achieved. The silica-coated Au rods were further used to fabricate wettable, low dimensional nanohybrids, composed of silica-coated Au rods with silica nanoballs adsorbed on their surface. The optical, chemical, and morphological properties of the nanohybrids were characterized by transmission and scanning electron microscopy, elemental analysis, UV-Vis-NIR spectroscopy, and zeta-potential analysis.
authors.affiliation: Division of Bionanotechnology, Gachon Bionano Institute, Kyungwon University, Sungnam 461-701, Korea.
authors.forename: Dong Kee
authors.initials: DK
authors.lastname: Yi