title: Inactivation of bacteria G(+)-S. aureus and G(-)-E. coli by phototoxic polythiophene incorporated in ZSM-5 zeolite.
abstract: A new heterogeneous photocatalyst was prepared by oxidative polymerization of the thiophene with ferric chloride in the ZSM-5 zeolite type. The synthesized polythiophene absorbs radiation in the visible range of the electromagnetic spectrum and by illumination with visible light generates reactive oxygen species (ROS) in water medium. During illumination reactive hydroxyl radical was detected by the spin trapping EPR method. Efficiency of the photocatalyst was tested on the killing of Gram-positive bacteria Staphylococcus aureus and Gram negative bacteria Escherichia coli.
authors.affiliation: Department of Environmental Engineering, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, Slovak Republic. gabriel.cik@stuba.sk
authors.forename: Gabriel
authors.initials: G
authors.lastname: Cík
authors.forename: Sona
authors.initials: S
authors.lastname: Priesolová
authors.forename: Helena
authors.initials: H
authors.lastname: Bujdáková
authors.forename: Frantisek
authors.initials: F
authors.lastname: Sersen
authors.forename: Timea
authors.initials: T
authors.lastname: Potheöová
authors.forename: Jozef
authors.initials: J
authors.lastname: Kristín
mesh_terms: D000900:Anti-Bacterial Agents / Q000494:pharmacology; D002384:Catalysis; D002712:Chlorides; D003497:Cyclic N-Oxides / Q000737:chemistry; D004578:Electron Spin Resonance Spectroscopy; D004926:Escherichia coli / Q000187:drug effects*; D005290:Ferric Compounds / Q000737:chemistry; D010777:Photochemistry / Q000379:methods; D011108:Polymers / Q000737:chemistry / Q000494:pharmacology*; D017382:Reactive Oxygen Species / Q000737:chemistry; D013211:Staphylococcus aureus / Q000187:drug effects*; D013876:Thiophenes / Q000737:chemistry / Q000494:pharmacology*; D018508:Water Purification / Q000379:methods; D017641:Zeolites / Q000737:chemistry*
chemical_list: D000900:Anti-Bacterial Agents; D002712:Chlorides; D003497:Cyclic N-Oxides; D005290:Ferric Compounds; D011108:Polymers; D017382:Reactive Oxygen Species; D013876:Thiophenes; D017641:Zeolites; C066730:polythiophene; C017245:5,5-dimethyl-1-pyrroline-1-oxide; C024555:ferric chloride