Study on diffusion process of nanoparticles in a PDMS layer using SPT technique

Ryo Iwao, yu Matsuda, Hiroki Yamaguchi, Tomohide Niimi

研究成果: Conference contribution

抄録

The Brownian motions of ZnS-AgInS2 (ZAIS) nanoparticles in a poly(dimethylsiloxane) (PDMS) layer were observed using the single-particle tracking (SPT) technique. The positions of each nanoparticle can be detected with spatial resolution of O(10 nm), and reflect the environment near each nanoparticles; thus, SPT can obtain information on the nanoscale structure or the spatial heterogeneity of the medium. In this study, ZAIS nanoparticles were illuminated by an excitation laser, and the emission of the nanoparticle was taken by using an EM-CCD camera. We analyzed each motion of the nanoparticle in the PDMS layer under two conditions: before and after adding a curing agent. The histograms of the diffusion coefficients had single peak for all of the particles in the layer before adding the curing agent and some particles in the layer after adding the one. On the other hand, the histogram of the other particles had two peaks. This indicates these particles diffused in the heterogeneous layer, showing spatial heterogeneous curing process in the layer.

本文言語English
ホスト出版物のタイトル2015 International Symposium on Micro-NanoMechatronics and Human Science, MHS 2015
出版社Institute of Electrical and Electronics Engineers Inc.
ISBN(電子版)9781479966783
DOI
出版ステータスPublished - 2016 3月 21
外部発表はい
イベントInternational Symposium on Micro-NanoMechatronics and Human Science, MHS 2015 - Nagoya, Japan
継続期間: 2015 11月 232015 11月 25

Other

OtherInternational Symposium on Micro-NanoMechatronics and Human Science, MHS 2015
国/地域Japan
CityNagoya
Period15/11/2315/11/25

ASJC Scopus subject areas

  • 生体医工学
  • 電子工学および電気工学
  • バイオテクノロジー
  • 教育

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