ISSN print edition: 0366-6352
ISSN electronic edition: 1336-9075
Registr. No.: MK SR 9/7
Reduction of ostazine dyes’ photodynamic effect by Fenton reaction
Tomáš Mackuľak, Miroslava Smolinská, Petra Olejníková, Josef Prousek, and Alžbeta Takáčová
Department of Environmental Engineering, Institute of Chemical and Environmental Engineering, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, Slovakia
Abstract: The aim of this work was to evaluate the influence of ostazine dyes on the microbial population in environment. These dyes
act as photosensitizers after irradiation by visible light. The photodynamic effect was induced in this way. The effect of
irradiated water solutions of ostazine green, ostazine yellow, and ostazine blue on the Escherichia coli growth was tested. Furthermore, the effect of these dyes (at c = 3.5 μg mL−1) on bacterial growth was evaluated after their pretreatment by the Fenton reaction. Dramatic changes in dyes’ toxicity were
observed after coloured solutions were pretreated by the Fenton reaction.
Keywords: ostazine dyes – Escherichia coli – Fenton reaction – photodymanic effect
Full paper is available at www.springerlink.com.
Chemical Papers 66 (2) 156–160 (2012)