Abstract
The aim of this research is to investigate amphotericin B (AmB)–Cu2+ complexes in aqueous solution at different pH values. Electronic absorption, circular dichroism (CD), Raman and FTIR spectroscopies were used in this study. We found that different concentrations of AmB and Cu2+ ions in solution leads to formation of complexes with stoichiometry of 2:1 and 1:1. The formation of AmB–Cu2+ complexes at physiological pH values is accompanied by changes of the molecular organization of AmB especially disaggregation. These observed effects might be significant from a medical point of view.
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Acknowledgments
This research was financed by the Ministry of Education and Science of Poland from the budget funds for science in the years 2008–2011 within the research project N N401 015035. Authors thanks to MSc Viktoria Babenko from Department of Chemistry University of Warsaw Poland for assistance with CD measurements.
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Gagoś, M., Czernel, G., Kamiński, D.M. et al. Spectroscopic studies of amphotericin B–Cu2+ complexes. Biometals 24, 915–922 (2011). https://doi.org/10.1007/s10534-011-9445-2
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DOI: https://doi.org/10.1007/s10534-011-9445-2