Photomagnetism of A-DNAs intercalated with photoresponsive molecules

Young Wan Kwon, Chang Hoon Lee, Eui Doo Do, Kyung Moon Jung, Dong Hoon Choi, Jung Il Jin, Dong Keun Oh

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

We have reported that the natural DNA and DNAs intercalated with organic radicals were able to show the noble magnetic properties in dry state. Extending our study on the Magnetic properties of DNAs, we intercalated the photoresponsive proflavine (PF) molecules into DNAs when the intercalated DNA complexes were illuminated by a laser beam of 488nm. Electron magnetic resonance (EMR) new signals appeared. We succeeded in measurement of photomagnetic properties of modified DNAs through electron magnetic resonance (EMR) spectroscopy and SQUID measurement. A significant increase in magnetization was observed for the photo-illuminated DNA/proflavine samples.

Original languageEnglish
Pages (from-to)337-342
Number of pages6
JournalMolecular Crystals and Liquid Crystals
Volume472
Issue number1
DOIs
Publication statusPublished - 2007 Aug 20

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Keywords

  • DNA
  • Magnetism
  • Photomagnetism
  • Photoresponsive molecules
  • Proflavine

ASJC Scopus subject areas

  • Condensed Matter Physics

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