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

Takehiko Tsukahara; Naokazu Idota

doi:10.1246/cl.2011.1381

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

Takehiko Tsukahara^*, Naokazu Idota

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

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 language	English
Pages (from-to)	1381-1382
Number of pages	2
Journal	Chemistry Letters
Volume	40
Issue number	12
DOIs	https://doi.org/10.1246/cl.2011.1381
Publication status	Published - 2011
Externally published	Yes

ASJC Scopus subject areas

Chemistry(all)

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10.1246/cl.2011.1381

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abstract = "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%.",

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AU - Idota, Naokazu

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AB - 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%.

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

Abstract

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