Optical patterning and photochemical fixation of polymer nanoparticles on glass substrates

Citation
S. Ito et al., Optical patterning and photochemical fixation of polymer nanoparticles on glass substrates, APPL PHYS L, 78(17), 2001, pp. 2566-2568
Citations number
7
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
APPLIED PHYSICS LETTERS
ISSN journal
0003-6951 → ACNP
Volume
78
Issue
17
Year of publication
2001
Pages
2566 - 2568
Database
ISI
SICI code
0003-6951(20010423)78:17<2566:OPAPFO>2.0.ZU;2-X
Abstract
A method for fixing patterned nanoparticles onto a substrate was developed by combining photopolymerization with a laser manipulation technique. Nanop articles were dispersed in ethylene glycol containing monomer, crosslinker, and photoinitiator, and gathered at the focal point of a trapping laser be am (1064 nm) just on a glass substrate. Local photopolymerization within an d around the nanoparticles assembly was induced by additional irradiation o f a pulsed-laser beam (355 nm), resulting in generation of polyacrylamide c ontaining nanoparticles. The polymerized assembly was evaluated by atomic f orce microscope observation. By scanning both trapping and excitation laser beams, patterned nanoparticles could also be fixed on a glass substrate. ( C) 2001 American Institute of Physics.