Temperature-swing microfluidic separation of uranyl ions using thermoresponsive copolymer brushes

Takehiko Tsukahara, Naokazu Idota

Research output: Contribution to journalArticle

3 Citations (Scopus)


This paper reports a novel temperature-swing microfluidic separation method. The selective adsorption-desorption of uranyl (UO2 2+) ions could be realized by swelling-shrinking of a thermoresponsive copolymer brush, which was constructed with poly(N-isopropylacrylamide) (NIPAAm) and vinylpyrrolidone (VP) ligand, onto a microchannel surface. We clarified that the hydrophilic-hydrophobic transition temperature of the copolymer brush was about 35 °C and that the selectively for UO2 2+ ions was 92%.

Original languageEnglish
Pages (from-to)1381-1382
Number of pages2
JournalChemistry Letters
Issue number12
Publication statusPublished - 2011
Externally publishedYes


ASJC Scopus subject areas

  • Chemistry(all)

Cite this