• Title/Summary/Keyword: bio-chemical

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The synthesis and light absorbing properties of heptamethine cyanine chromophores based on benzoxazole derivatives

  • Youn, Hye-Soo;Park, Soo-Youl;Shin, Seung-Rim;Shin, Joung-Il;Oh, Seong-Geun;Jun, Kun
    • Proceedings of the Korean Society of Dyers and Finishers Conference
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    • 2008.10a
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    • pp.133-134
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    • 2008

  • A novel near infrared(NIR) absorbing dyes were synthesized by using bis-aldehyde formyl aromatic compounds and heteroaryl derivatives with the reactive methylene group. These dyes provided a range of the NIR wavelength region about 720 nm value. Also, the light absorbing properties of these dyes were investigated in our experiment results. In generally, these NIR colorants may be potential used for optical recording media, DNA sequencing probe and laser beam printings.

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The Synthesis and Evaluation of Squarylium Dyes Based On the NIR Spectra Region

  • Park, Soo-Youl;Shin, Seung-Rim;Shin, Joung-Il;An, Kyoung-Lyong;Jun, Kun
    • Proceedings of the Korean Society of Dyers and Finishers Conference
    • /
    • 2008.10a
    • /
    • pp.131-132
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    • 2008

  • Several squarylium dyes, derived from benzothiazole and indoles, were synthesized as a potential NIR dyes with absorption in the 700-900 nm region. These chromophores were induced much more bathochromic shift in the absorption maximum of the compound relative to the neutral parent squarylium dyes which we were described before. The squaryliums offer a convenient way of linking the dye to functional substrates and may be an advantage to be potential chromophores for NIR-absorbing, NIR-Cut-off filter, PDT(Photo Dynamic Therapy) materials.

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