TY - JOUR
T1 - Spatio-selective surface modification of glass assisted by laser-induced deposition of gold nanoparticles
AU - Takahashi, Hironobu
AU - Niidome, Yasuro
AU - Hisanabe, Hideyuki
AU - Kuroiwa, Keita
AU - Kimizuka, Nobuo
AU - Yamada, Sunao
N1 - Funding Information:
This study was supported in part by Research Fellowships of the Japan Society for Promotion of Science (JSPS) for Young Scientists and by a Grant-in-Aid for Scientific Research (KAKENHI) in the Priority Area “Molecular Nano Dynamics” from the Ministry of Education, Culture, Sports, Science and Technology.
Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2006/12/5
Y1 - 2006/12/5
N2 - Using pulsed laser irradiation (532 nm), dodecanethiol-capped gold nanoparticles (DT-Au) were deposited on the laser-irradiated region of a hydrophobic glass substrate modified with dimethyloctadecylchlorosilane (DMOS). After removal of deposited DT-Au, the laser-deposited region on the substrate was hydrophilic, as verified by static water contact angles. X-ray photoelectron spectroscopy suggested that the naked glass surface was not exposed at the hydrophilic region. Immersion of the substrate into gold nanorod (NR) solution selectively immobilized NRs on the hydrophilic surface via electrostatic interactions, indicating that the hydrophilic region was an anionic surface. From these results, it is expected that some immobilized DMOS groups on the laser-irradiated region of the substrate were oxidized during DT-Au deposition and fragmentation of the deposited DT-Au.
AB - Using pulsed laser irradiation (532 nm), dodecanethiol-capped gold nanoparticles (DT-Au) were deposited on the laser-irradiated region of a hydrophobic glass substrate modified with dimethyloctadecylchlorosilane (DMOS). After removal of deposited DT-Au, the laser-deposited region on the substrate was hydrophilic, as verified by static water contact angles. X-ray photoelectron spectroscopy suggested that the naked glass surface was not exposed at the hydrophilic region. Immersion of the substrate into gold nanorod (NR) solution selectively immobilized NRs on the hydrophilic surface via electrostatic interactions, indicating that the hydrophilic region was an anionic surface. From these results, it is expected that some immobilized DMOS groups on the laser-irradiated region of the substrate were oxidized during DT-Au deposition and fragmentation of the deposited DT-Au.
UR - http://www.scopus.com/inward/record.url?scp=33750803765&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33750803765&partnerID=8YFLogxK
U2 - 10.1016/j.tsf.2006.05.030
DO - 10.1016/j.tsf.2006.05.030
M3 - Article
AN - SCOPUS:33750803765
VL - 515
SP - 1618
EP - 1622
JO - Thin Solid Films
JF - Thin Solid Films
SN - 0040-6090
IS - 4
ER -