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Journal of Fluorescence

, Volume 13, Issue 5, pp 375–377 | Cite as

Luminescence of Leuco-Thiazine Dyes

  • Soo-Keun Lee
  • Andrew MillsEmail author
Article

Abstract

Details of the novel luminescence of the leuco forms of the thiazine dyes, methylene blue and thionine, are reported, including their emission maxima, quantum yields and lifetimes of the luminescence. Other work shows that this luminescence is independent of reducing agent type and solution pH and is a common feature of most thiazine dyes.

Thiazine dyes methylene blue Leuco-Methyle blue fluorescence 

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REFERENCES

  1. 1.
    W. J. Albery (1982). Development of photogalvanic cells for solar energy conversion. Acc. Chem. Res. 15, 142-148.Google Scholar
  2. 2.
    M. A. Biel (2000). Methylene blue and toluidene blue mediated fluorescence diagnosis of cancer. US Pat. 6083487.Google Scholar
  3. 3.
    M. Wainwright (2000). Methylene blue derivatives-suitable photoantimicrobials for blood product disinfection? Int. J. Antimicrob. Agents 16, 381-394.Google Scholar
  4. 4.
    S. J. Atherton and A. Harriman (1993). Photochemistry of interca-lated methylene blue: Photoinduced hydrogen atom abstraction from guanine and adenine. J. Am. Chem. Soc. 115, 1816-1822.Google Scholar
  5. 5.
    G. S. Beddard, J. M. Kelly, and J. M. Van de Putten (1990). J. Chem. Soc., Chem. Commun. 1346-1347.Google Scholar
  6. 6.
    F. J. Green (1990). The Sigma-Aldrich Handbook of Stains, Dyes and Indicator, Aldrich Chemical Company, Milwaukee, WI.Google Scholar
  7. 7.
    A. Mills and J. Wang (1999). Photobleaching of methylene blue sensitized by TiO2: An ambiguous system? J. Photochem. Photobiol. A: Chem. 127, 123-134.Google Scholar
  8. 8.
    T. Snehalatha, K. C. Rajanna, and P. K. Saoprakash (1997). Methylene blue-Ascorbic acid: An undergraduate experiment in kinetics. J. Chem. Educ. 74, 228-233.Google Scholar
  9. 9.
    A. G. Cook, R. M. Tolliver, and J. E. Williams (1994). The blue bottle experiment revisited: How sweet? How blue? J. Chem. Educ. 71, 160-161.Google Scholar
  10. 10.
    J. A. Campbell (1965). Why Do Chemical Reactions Occur? Prentice-Hall, Englewood Cliffs, NJ.Google Scholar
  11. 11.
    G. A. Aikins (1932). Effect of light on the reduction of methylene blue in milk. J. Agric. Res. 44, 85-95.Google Scholar
  12. 12.
    M. Smolander, E. Hurme, and R. Ahvenainen (1997). Leak indicators for modified-atmosphere packages. Trends Food Sci. Technol. 8, 101-106.Google Scholar
  13. 13.
    H. Obata (1961). Photoreduction of methylene blue by visible light in the aqueous solution containing certain kinds of inorganic salts. II. Photobleached product. Bull. Chem. Soc. Jpn. 34, 1057-1063.Google Scholar
  14. 14.
    W. H. Melhuish (1961). Quantum efficiencies of fluorescence of organic substances: Effect of solvent and concentration of the fluorescent solute. J. Am. Chem. Soc. 65, 229-235.Google Scholar
  15. 15.
    E. Tuite, J. M. Kelly, G. S. Beddard, and G. S. Reid (1994). Femtosecond deactivation of thionine singlet states by mononucleotides and polynucleotides. Chem. Phys. Lett. 224, 517-524.Google Scholar

Copyright information

© Plenum Publishing Corporation 2003

Authors and Affiliations

  1. 1.Department of Pure & Applied ChemistryUniversity of StrathclydeGlasgowUnited Kingdom

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