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Effect of Hg(II) and Pb(II) Ions on C-Phycocyanin (Spirulina platensis)

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DOI: 10.4236/opj.2013.31020    3,253 Downloads   5,416 Views   Citations

ABSTRACT

Influence of Hg(II) and Pb(II) ions on C-Phycocyanin (C-PC) from cyanobacteria Spirulina platensis was investigated using Fluorescence spectroscopy. Fluorescence measurements demonstrate quenching of C-PC emission by Hg(II) and Pb(II), and blue shifts in the fluorescence spectra. The effect of DNA on the fluorescence of Hg(II)-and Pb(II)-C-PC (from Spirulina platensis) complexes was also studied. It was shown that the fluorescence intensity of Hg-C-PC after addition of DNA gave rise to the fluorescence buildup. At the same time, addition of DNA to the Pb(II)-C-PC complexes showed no such effect. In the case of Hg(II)-C-PC, fluorescence intensity significantly decreases in time, while for Pb(II)-C-PC, decrease of the fluorescence intensity is not significant, but blue shift of the peak takes place.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

E. Gelagutashvili and K. Tsakadze, "Effect of Hg(II) and Pb(II) Ions on C-Phycocyanin (Spirulina platensis)," Optics and Photonics Journal, Vol. 3 No. 1, 2013, pp. 122-127. doi: 10.4236/opj.2013.31020.

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