Enhanced sensitivity of fluorescence-based Fe(ii) detection by freezing

Jong Seung Kim, Yun Hak Lee, Peter Verwilst, Hyeong Seok Kim, Jinjung Ju, Kitae Kim

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)


The first example of combining the fluorescent probe-based freeze concentration effect with N-oxide chemistry is reported for the highly sensitive and selective detection of ferrous ion (Fe(ii)). Interestingly, our preliminary results demonstrated that the fluorescence intensity of Fe(ii) was markedly enhanced upon freezing, and the location of Fe(ii) in the freezing state was visualized by confocal microscopy using a cryostage.

Original languageEnglish
Pages (from-to)12136-12139
Number of pages4
JournalChemical Communications
Issue number81
Publication statusPublished - 2019

Bibliographical note

Funding Information:
This work was funded by the Korea Polar Research Institute (KOPRI) project (PE19200 to K. K.) and CRI project (2018R1A3B1052702 to J. S. K.) of the NRF of Korea.

Publisher Copyright:
© 2019 The Royal Society of Chemistry.

ASJC Scopus subject areas

  • Catalysis
  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • General Chemistry
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry


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