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2010 | 118 | 4 | 613-618
Article title

Triplet States in DOPA-Melanin and in Its Complexes with Kanamycin and Copper Cu(II) Ions

Content
Title variants
Languages of publication
EN
Abstracts
EN
The mono- and biradical forms of DOPA-melanin (DOPA-eumelanin) were studied by EPR spectroscopy in 100-300 K temperature range. The existence of triplet states in DOPA-melanin was proved. The analysis of EPR spectra has shown that in DOPA-melanin and its complexes with kanamycin and Cu^{2+} ions, two kinds of paramagnetic centres exist. The first of them are in doublet ground state with spin S = 1/2 and they obey the Curie law. The paramagnetic centres of the second group are in thermally excited triplet state with spin S = 1 and in this case the Curie law is not fulfilled.
Keywords
EN
Year
Volume
118
Issue
4
Pages
613-618
Physical description
Dates
published
2010-10
received
2010-02-03
(unknown)
2010-09-09
References
  • 1. B. Larsson, H. Tjalve, Biochem. Pharmacol. 28, 1181 (1979)
  • 2. U. Mars, B.S. Larsson, Pigment Cell Res. 12, 266 (1999)
  • 3. B.S. Larsson, Pigment Cell Res. 6, 127 (1993)
  • 4. E. Buszman, Habilitation Thesis, Medical University of Silesia, Katowice 1994
  • 5. C.C. Felix, J.S. Hyde, T. Sarna, R.C. Sealy, J. Am. Chem. Soc. 100, 3922 (1978)
  • 6. L. Hong, J.D. Simon, J. Phys. Chem. B 111, 7938 (2007)
  • 7. S. Łukiewicz, K. Reszka, Z. Matuszak, Bioelectrochem. Bioenerg. 7, 153 (1980)
  • 8. M. Jastrzębska, T. Wilczok, Stud. Biophys. 122, 39 (1987)
  • 9. W. Froncisz, T. Sarna, J.S. Hyde, Arch. Biochem. Biophys. 202, 289 (1980)
  • 10. B. Szpoganicz, S. Gidanian, P. Kong, P. Farmer, J. Inorg. Biochem. 89, 45 (2002)
  • 11. P. Meredith, T. Sarna, Pigment Cell Res. 19, 572 (2006)
  • 12. R.C. Sealy, J.S. Hyde, C.C. Felix, I.A. Menon, G. Prota, Science 217, 545 (1982)
  • 13. S.S. Chio, J.S. Hyde, R.C. Sealy, Arch. Biochem. Biophys. 215, 100 (1982)
  • 14. S.S. Chio, J.S. Hyde, R.C. Sealy, Arch. Biochem. Biophys. 199, 133 (1980)
  • 15. F. Binns, R.F. Chapman, N.C. Robson, G.A. Swan, A. Waggot, J. Chem. Soc. C, 1128 (1970)
  • 16. R. Kirmse, J. Stach, ESR-Spektroskopie. Anwendungen in der Chemie, Akademie-Verlag, Berlin 1985, p. 158
  • 17. T.F. Yen, D.K. Young, Carbon 11, 33 (1973)
  • 18. B. Bleaney, K.D. Bowers, Proc. R. Soc. Lond. Ser. A 214, 451 (1952)
  • 19. B. Pilawa, M. Latocha, E. Buszman, T. Wilczok, Appl. Magn. Reson. 25, 105 (2003)
  • 20. B. Pilawa, E. Buszman, D. Wrześniok, M. Latocha, T. Wilczok, Appl. Magn. Reson. 23, 181 (2002)
  • 21. L. Najder-Kozdrowska, B. Pilawa, A.B. Więckowski, E. Buszman, D. Wrześniok, Appl. Magn. Reson. 36, 81 (2009)
  • 22. A. Więckowski, Fiz. Diel. Radiospektrosk. (Poznań) 7, 101 (1975)
  • 23. A. Więckowski, Fiz. Diel. Radiospektrosk. (Poznań) 7, 223 (1975)
  • 24. E. Buszman, B. Pilawa, T. Witoszyńska, M. Latocha, T. Wilczok, Appl. Magn. Reson. 24, 401 (2003)
  • 25. D. Wrześniok, E. Buszman, E. Karna, P. Nawrat, J. Pałka, Eur. J. Pharmacol. 446, 7 (2002)
  • 26. E. Buszman, B. Pilawa, M. Zdybel, D. Wrześniok, A. Grzegorczyk, T. Wilczok, Acta Phys. Pol. A 108, 353 (2005)
  • 27. T. Sarna, J.S. Hyde, H.M. Swartz, Science 192, 1132 (1976)
  • 28. T. Wilczok, B. Bilińska, E. Buszman, M. Kopera, Arch. Biochem. Biophys. 231, 257 (1984)
  • 29. J.J. Nordlund, R.E. Boissy, V.J. Hearing, J.P. Ortonne, The Pigmentary System: Physiology and Pathophysiology, Oxford University Press, New York 1986
  • 30. Y.T. Thathachari, M.S. Blois, Biophys. J. 9, 77 (1969)
Document Type
Publication order reference
YADDA identifier
bwmeta1.element.bwnjournal-article-appv118n415kz
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