Hydration of poly(N-isopropylacrylamide) brushes on micro-silica beads measured by a fluorescent probe

Yusuke Hattori, Kenichi Nagase, Jun Kobayashi, Akihiko Kikuchi, Yoshikatsu Akiyama, Hideko Kanazawa, Teruo Okano

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Hydration of poly(N-isopropylacrylamide) brushes on silica micro-beads was investigated using a fluorescent probe method. The free ends, the bottom, and the random of brushes were labeled with dansyl group. The emission spectra at the thin brushes were reduced with increasing temperature regardless of their labeling locations. At the free ends of thick brushes, the emission intensity was enhanced at 500 nm and reduced at 455 nm by heating, which was corresponding to the local micro-environmental change around the free ends. The spectral shift was speculated to be due to the enhancement of the flexibility and the hydration of thick brushes.

Original languageEnglish
Pages (from-to)193-198
Number of pages6
JournalChemical Physics Letters
Volume491
Issue number4-6
DOIs
Publication statusPublished - 2010 May 17

Fingerprint

brushes
Brushes
Fluorescent Dyes
Silicon Dioxide
beads
Hydration
hydration
silicon dioxide
probes
Labeling
marking
flexibility
emission spectra
poly-N-isopropylacrylamide
Heating
heating
augmentation
shift
Temperature
temperature

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Physics and Astronomy(all)

Cite this

Hydration of poly(N-isopropylacrylamide) brushes on micro-silica beads measured by a fluorescent probe. / Hattori, Yusuke; Nagase, Kenichi; Kobayashi, Jun; Kikuchi, Akihiko; Akiyama, Yoshikatsu; Kanazawa, Hideko; Okano, Teruo.

In: Chemical Physics Letters, Vol. 491, No. 4-6, 17.05.2010, p. 193-198.

Research output: Contribution to journalArticle

Hattori, Yusuke ; Nagase, Kenichi ; Kobayashi, Jun ; Kikuchi, Akihiko ; Akiyama, Yoshikatsu ; Kanazawa, Hideko ; Okano, Teruo. / Hydration of poly(N-isopropylacrylamide) brushes on micro-silica beads measured by a fluorescent probe. In: Chemical Physics Letters. 2010 ; Vol. 491, No. 4-6. pp. 193-198.
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