Tailored Au nanorods: optimizing functionality, controlling the aspect ratio and increasing biocompatibility.
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.
Cai
Xiaoqing
X
Institute of Physics, Academia Sinica, Nankang, Taipei 115, Taiwan.
Wang
Cheng-Liang
CL
Chen
Hsiang-Hsin
HH
Chien
Chia-Chi
CC
Lai
Sheng-Feng
SF
Chen
Yi-Yun
YY
Hua
Tzu-En
TE
Kempson
Ivan M
IM
Hwu
Y
Y
Yang
C S
CS
Margaritondo
G
G
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
D001672:Biocompatible Materials; D006046:Gold; D012835:Silver Nitrate