Surface plasmon resonance study on the interaction of a dithiosquarylium dye with metal ions

  • Kim S
  • Han S
  • Jang G
 et al. 
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The detection of some metal ions has been investigated using an optical sensor based on surface plasmon resonance (SPR). A multilayer sensing chip was prepared with a dithiosquarylium (DTSQ) dye sensing layer coating on a gold layer. Using the DTSQ dye as a metal ion sensing molecule, a highly selective response for Ag+ was observed.

Author-supplied keywords

  • dithiosquarylium
  • dtsq
  • dye
  • metal ion sensor
  • resonance angle
  • spr
  • surface plasmon resonance

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  • Sung-Hoon Kim

  • Sun-Kyung Han

  • Gab-Soo Jang

  • Kwang-Nak Koh

  • Shin-Won Kang

  • Sam-Rok Keum

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