Photo-switchable and self-erasable fluorescent nanoprobe

Keitaro Sou*, Li Yan Chan, Chi Lik Ken Lee

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


Optically switchable fluorescent molecule is useful for developing photo-functional materials. However, most of the conventional fluorescent molecule is in a class of “always-on” type, which does not possess a fluorescence switching function. In this work, switchable fluorescent nanoparticles based on self-assembly of amphiphilic derivative of rhodamine B is synthesized and evaluated for its optical properties. The fluorescent nanoparticles functioned as a photo-switchable and self-erasable nanoprobe by reversible intramolecular ring opening cyclization of the rhodamine B derivative in dispersion and free-standing hydrogel.

Original languageEnglish
Pages (from-to)25-31
Number of pages7
JournalJournal of Photochemistry and Photobiology A: Chemistry
Publication statusPublished - 2017 Jan 1


  • Fluorescence
  • Imaging
  • Molecular assembly
  • Nanoparticles
  • Photochromism

ASJC Scopus subject areas

  • General Chemistry
  • General Chemical Engineering
  • General Physics and Astronomy


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