title: Enhanced photobactericidal activity of ZnO nanorods modified by meso-tetrakis(4-sulfonatophenyl)porphyrin under visible LED lamp irradiation.
abstract: In this study, zinc oxide (ZnO) nanorods have been synthesized using a simple template-free precipitation technique and deposited on glass substrate. The meso-tetrakis(4-sulfonatophenyl)porphyrin (TPPS) has been synthesized and then immobilized on the surface of ZnO nanorods to prepare an organic/inorganic composite. The samples were characterized by various techniques such as X-ray diffraction, diffuse reflectance spectra, Fourier transform-infrared spectroscopy and scanning electron microscopy. In addition, the photobactericidal activity of TPPS/ZnO composite, TPPS and ZnO nanorods was tested against the pathogenic bacterium of Escherichia coli under visible LED lamp irradiation. The results indicate that the photobactericidal activity of TPPS-loaded ZnO nanorods was better than TPPS or ZnO nanorods, separately.
authors.affiliation: Department of Chemistry, Iran University of Science and Technology, Narmak, Tehran 16846-13114, Iran E-mail: shokraiyan@chem.iust.ac.ir.
authors.forename: Rahmatollah
authors.initials: R
authors.lastname: Rahimi
authors.affiliation: Department of Chemistry, Iran University of Science and Technology, Narmak, Tehran 16846-13114, Iran E-mail: shokraiyan@chem.iust.ac.ir.
authors.forename: Javad
authors.initials: J
authors.lastname: Shokraiyan
authors.affiliation: Department of Chemistry, Iran University of Science and Technology, Narmak, Tehran 16846-13114, Iran E-mail: shokraiyan@chem.iust.ac.ir.
authors.forename: Mahboubeh
authors.initials: M
authors.lastname: Rabbani
authors.affiliation: Department of Chemistry, Iran University of Science and Technology, Narmak, Tehran 16846-13114, Iran E-mail: shokraiyan@chem.iust.ac.ir.
authors.forename: Fatemeh
authors.initials: F
authors.lastname: Fayyaz
mesh_terms: D001419:Bacteria / Q000187:drug effects / Q000528:radiation effects; D004203:Disinfection / Q000379:methods*; D004926:Escherichia coli; D008027:Light; D008855:Microscopy, Electron, Scanning; D043942:Nanotubes / Q000737:chemistry*; D011166:Porphyrins / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared; D014865:Waste Disposal, Fluid; D062065:Wastewater / Q000382:microbiology; D014961:X-Ray Diffraction; D015034:Zinc Oxide / Q000737:chemistry*
chemical_list: D011166:Porphyrins; D062065:Wastewater; D015034:Zinc Oxide; C092400:meso-tetrakis(4-sulfonatophenyl)porphyrin