Preparation of PDMS membranes to permeate out Au-nanoparticles and permeation-blocking layers on the PDMS surface by photolithography

Motohiro Tagaya, Tomokazu Iyoda, Masaru Nakagawa

研究成果: Paper査読

抄録

In this study, we demonstrate that a toluene solution containing Au nanoparticles could seep site-selectively out of a cross-linked poly(dimethylsiloxane) (PDMS) membrane whose surface was modified with a perfluoroalkylsilane adsorption film in accordance with a photomask shape. We first confirmed that Au nanoparticles passed through the cross-linked PDMS membrane by UV-Visible spectroscopy. The permeability of Au nanoparticles could be controlled by a feed ratio of a cross-linking reagent to liquid PDMS. By exposure to vacuum ultraviolet (VUV) light at 172 nm, silanol groups were generated on the PDMS surface due to photooxidation and then modified with a perfluoroalkylsilane adsorption film. The adsorption film worked as a permeation-blocking layer, and consequently we could let the nanoparticle solution seep out of the unexposed surface of the PDMS membrane into a solid surface.

本文言語English
ページ4263-4264
ページ数2
出版ステータスPublished - 2005 12 1
外部発表はい
イベント54th SPSJ Symposium on Macromolecules - Yamagata, Japan
継続期間: 2005 9 202005 9 22

Other

Other54th SPSJ Symposium on Macromolecules
国/地域Japan
CityYamagata
Period05/9/2005/9/22

ASJC Scopus subject areas

  • 工学(全般)

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