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  • Mohl, MelindaMicroelectronics and Materials Physics Laboratories, Department of Electrical Engineering, University of Oulu, Finland (author)

Titania nanofibers in gypsum composites : an antibacterial and cytotoxicology study

  • Article/chapterEnglish2014

Publisher, publication year, extent ...

  • Royal Society of Chemistry,2014
  • printrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:umu-85426
  • https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-85426URI
  • https://doi.org/10.1039/c3tb21644fDOI

Supplementary language notes

  • Language:English
  • Summary in:English

Part of subdatabase

Classification

  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • Further developments of antibacterial coatings based on photocatalytic nanomaterials could be a promising route towards potential environmentally friendly applications in households, public buildings and health care facilities. Hereby we describe a simple chemical approach to synthesize photocatalytic nanomaterial-embedded coatings using gypsum as a binder. Various types of TiO2 nanofiber-based photocatalytic materials (nitrogen-doped and/or palladium nanoparticle decorated) and their composites with gypsum were characterized by means of scanning (SEM) and transmission (TEM) electron microscopy as well as electron and X-ray diffraction (XRD) and energy-dispersive X-ray spectroscopy (EDX) techniques. These gypsum-based composites can be directly applied as commercially available paints on indoor walls. Herein we report that surfaces coated with photocatalytic composites exhibit excellent antimicrobial properties by killing both methicillin-sensitive Staphylococcus aureus (MSSA) and methicillin-resistant Staphylococcus aureus (MRSA) under blue light. In the case of MSSA cells, the palladium nanoparticle-decorated and nitrogen-doped TiO2 composites demonstrated the highest antimicrobial activity. For the MRSA strain even pure gypsum samples were proven to be efficient in eradicating Gram-positive human pathogens. The cytotoxicity of freestanding TiO2 nanofibers was revealed by analyzing the viability of HeLa cells using MTT and fluorescent cell assays.

Subject headings and genre

Added entries (persons, corporate bodies, meetings, titles ...)

  • Aron Dombovari, AronMicroelectronics and Materials Physics Laboratories, Department of Electrical Engineering, University of Oulu, Finland (author)
  • Tuchina, Elena S.Department of Biology, Saratov State University, Saratov, Russia (author)
  • Petrov, Pavel O.Department of Biology, Saratov State University, Saratov, Russia (author)
  • Bibikova, Olga A.Optoelectronics and Measurement Techniques Laboratory, Department of Electrical Engineering, University of Oulu, Finland ; Department of Nonlinear Processes, Saratov State University, Russia (author)
  • Skovorodkin, IlyaBiocenter Oulu, University of Oulu, Finland (author)
  • Popov, Alexey P.Optoelectronics and Measurement Techniques Laboratory, Department of Electrical Engineering, University of Oulu, Finland (author)
  • Rautio, Anne-RiikkaMicroelectronics and Materials Physics Laboratories, Department of Electrical Engineering, University of Oulu, Finland (author)
  • Sarkar, AnjanaUmeå universitet,Kemiska institutionen(Swepub:umu)ansa0184 (author)
  • Mikkola, Jyri-PekkaUmeå universitet,Kemiska institutionen,Laboratory of Industrial Chemistry and Reaction Engineering, Process Chemistry Centre, Åbo Akademi University, Finland(Swepub:umu)jymi0001 (author)
  • Huuhtanen, MikaMass and Heat Transfer Process Laboratory, Department of Process and Environmental Engineering, University of Oulu, Finland (author)
  • Vainio, SeppoBiocenter Oulu, University of Oulu, Finland (author)
  • Keiski, Riitta L.Mass and Heat Transfer Process Laboratory, Department of Process and Environmental Engineering, University of Oulu, Finland (author)
  • Prilepsky, ArthurInstitute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, Saratov, Russia (author)
  • Kukovecz, AkosDepartment of Applied and Environmental Chemistry, University of Szeged, Hungary ; MTA-SZTE Lendület Porous Nanocomposites Research Group, Szeged, Hungary (author)
  • Konya, ZoltanDepartment of Applied and Environmental Chemistry, University of Szeged, Hungary ; MTA-SZTE Reaction Kinetics and Surface Chemistry Research Group, Szeged, Hungary (author)
  • Tuchincmn, Valery V.Optoelectronics and Measurement Techniques Laboratory, Department of Electrical Engineering, University of Oulu, Finland ; Research-Educational Institute of Optics and Biophotonics, Saratov State University, Russia ; nstitute of Precise Mechanics and Control of Russian Academy of Sciences, Saratov, Russia (author)
  • Kordas, KrisztianMicroelectronics and Materials Physics Laboratories, Department of Electrical Engineering, University of Oulu, Finland (author)
  • Microelectronics and Materials Physics Laboratories, Department of Electrical Engineering, University of Oulu, FinlandDepartment of Biology, Saratov State University, Saratov, Russia (creator_code:org_t)

Related titles

  • In:Journal of Material Chemistry B: Royal Society of Chemistry2:10, s. 1307-13162050-750X2050-7518

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