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has been cited by the following article:

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

  AUTHORS: Eteri Gelagutashvili, Ketevan Tsakadze

  KEYWORDS: C-Phycocyanin; Hg(II); Pb(II) Ions; DNA; Fluorescence

  JOURNAL NAME: Optics and Photonics Journal, Vol.3 No.1, March 29, 2013

  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.