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Scientific article
English

Light-Controlled Reversible Release and Uptake of Potassium Ions from Ion-Exchanging Nanospheres

Published inACS applied materials & interfaces, vol. 6, no. 4, p. 2666-2670
Publication date2014
Abstract

Here, we report for the first time on photoswitchable nanospheres containing spiropyran (Sp) for reversible release and uptake of metal ions. K+ is used as a model ion to demonstrate the chemical principle of this approach. Valinomycin is incorporated in the nanospheres to stabilize K+. Upon UV illumination, Sp transforms to the more basic ring-opened merocyanine form, which takes up H+ from the surrounding aqueous solution and expels K+ from the nanospheres. The process can be reversed by irradiation with visible light to reduce the surrounding K+ concentration.

Keywords
  • Photoswitching
  • Potassium release
  • Nanosphere
  • Spiropyran
  • Ion-selective
Citation (ISO format)
XIE, Xiaojiang, BAKKER, Eric. Light-Controlled Reversible Release and Uptake of Potassium Ions from Ion-Exchanging Nanospheres. In: ACS applied materials & interfaces, 2014, vol. 6, n° 4, p. 2666–2670. doi: 10.1021/am4049805
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ISSN of the journal1944-8244
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Technical informations

Creation06/17/2014 11:27:00 AM
First validation06/17/2014 11:27:00 AM
Update time03/14/2023 9:21:57 PM
Status update03/14/2023 9:21:57 PM
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