Photochemical fixation of individual polymer nanoparticles on glass substrates in solution at room temperature

Syoji Ito, Hiroyuki Yoshikawa, Hiroshi Masuhara*

*Corresponding author for this work

Research output: Contribution to journalArticle

6 Scopus citations

Abstract

A new method for fixing single polymer nanoparticles onto a substrate was developed by local photopolymerization. A nanoparticle, dispersed in ethylene glycol containing monomer, crosslinker, and radical photoinitiator, was moved to the surface of a glass substrate using a focused near-infrared laser beam. Local photopolymerization around the nanoparticle was induced by additional irradiation of an ultraviolet pulsed laser beam, resulting in the generation of an acrylamide gel containing the nanoparticle on the substrate. The nanoparticles become fixed and remained after washing. The morphology of the formed polymerized gel was evaluated by atomic force microscope (AFM) observation.

Original languageEnglish
JournalJapanese Journal of Applied Physics, Part 2: Letters
Volume43
Issue number7 A
DOIs
StatePublished - 1 Jul 2004

Keywords

  • Laser manipulation
  • Local photopolymerization
  • Photochemical fixation
  • Single nanoparticles

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