Optical properties of DNA-CTMA and PA-CTMA doped with (E)-2- (2-(4-(diethylamino)styryi)-4H/-pyan-4-ylideiie)maloiionitriie (DCM)

Dong Hoon Choi, Jung Eun Lee, Young Wan Kwon, U. Ra Lee, Min Ju Cho, Kyung Hwan Kim, Jung Il Jin

Research output: Contribution to journalConference articlepeer-review

1 Citation (Scopus)


The salmon sperm DNA is not soluble in any of the organic solvent. Therefore, we modified the structure of natural DNA and changed its solubility. The organic soluble DNA-CTMA was obtained by precipitating the DNA in water with a cationic surfactant such as a lipid of cetyltrimethylammonium chloride (CTMA). The resulting DNA-lipid complex shows good solubility in alcohol and allows us to fabricate thin films for studying their optical and photophysical properties in a solid state. The absorption and photoluminescence (PL) behaviors of DNA-CTMA and CTMA- polyacrylic acid (PA) doped with (E)-2-(2-(4- (diethylamino)styryl)-4H-pyran-4-ylidene)malononitrile (DCM) were studied. We observed the different absorption and PL spectral behaviors with the contents of DCM in two different host materials. This was explained by a proper mechanism based on intercalation or groove binding of fluorescent dye into the base pairs of DNA-CTMA.

Original languageEnglish
Article number71180J
JournalProceedings of SPIE - The International Society for Optical Engineering
Publication statusPublished - 2008
EventOptical Materials in Defence Systems Technology V - Cardiff, Wales, United Kingdom
Duration: 2008 Sept 152008 Sept 16


  • DCM
  • Natural DNA
  • Photoluminescence

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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