title: Tailored Au nanorods: optimizing functionality, controlling the aspect ratio and increasing biocompatibility.
abstract: Monodisperse gold nanorods with high aspect ratio were synthesized by x-ray irradiation. Irradiation was first used to stimulate the creation of seeds. Afterward, nanorod growth was stimulated either by chemical reduction or again by x-ray irradiation. In the last case, the entire process took place without reducing agents. The shape of the final products could be controlled by modulating the intensity of the x-ray irradiation during the seed synthesis. In turn, the nanorod aspect ratio determines the absorption wavelength of the nanorods that can thus be optimized for different applications. Likewise, the aspect ratio influences the uptake of the nanorods by HeLa cells.
authors.affiliation: Institute of Physics, Academia Sinica, Nankang, Taipei 115, Taiwan.
authors.forename: Xiaoqing
authors.initials: X
authors.lastname: Cai
authors.forename: Cheng-Liang
authors.initials: CL
authors.lastname: Wang
authors.forename: Hsiang-Hsin
authors.initials: HH
authors.lastname: Chen
authors.forename: Chia-Chi
authors.initials: CC
authors.lastname: Chien
authors.forename: Sheng-Feng
authors.initials: SF
authors.lastname: Lai
authors.forename: Yi-Yun
authors.initials: YY
authors.lastname: Chen
authors.forename: Tzu-En
authors.initials: TE
authors.lastname: Hua
authors.forename: Ivan M
authors.initials: IM
authors.lastname: Kempson
authors.forename: Y
authors.initials: Y
authors.lastname: Hwu
authors.forename: C S
authors.initials: CS
authors.lastname: Yang
authors.forename: G
authors.initials: G
authors.lastname: Margaritondo
mesh_terms: D001672:Biocompatible Materials / Q000138:chemical synthesis / Q000737:chemistry* / Q000493:pharmacokinetics; D006046:Gold / Q000737:chemistry* / Q000493:pharmacokinetics; D006367:HeLa Cells; D006801:Humans; D046529:Microscopy, Electron, Transmission; D036103:Nanotechnology / Q000379:methods; D043942:Nanotubes / Q000737:chemistry*; D010316:Particle Size; D012835:Silver Nitrate / Q000737:chemistry; D013056:Spectrophotometry, Ultraviolet; D014965:X-Rays
chemical_list: D001672:Biocompatible Materials; D006046:Gold; D012835:Silver Nitrate