umu.sePublications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Titania nanofibers in gypsum composites: an antibacterial and cytotoxicology study
Microelectronics and Materials Physics Laboratories, Department of Electrical Engineering, University of Oulu, Finland.
Microelectronics and Materials Physics Laboratories, Department of Electrical Engineering, University of Oulu, Finland.
Department of Biology, Saratov State University, Saratov, Russia .
Department of Biology, Saratov State University, Saratov, Russia .
Show others and affiliations
2014 (English)In: Journal of Material Chemistry B, ISSN 2050-750X, Vol. 2, no 10, 1307-1316 p.Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
Royal Society of Chemistry, 2014. Vol. 2, no 10, 1307-1316 p.
National Category
Chemical Sciences Materials Chemistry Biomaterials Science
Identifiers
URN: urn:nbn:se:umu:diva-85426DOI: 10.1039/c3tb21644fISI: 000332199900003OAI: oai:DiVA.org:umu-85426DiVA: diva2:693439
Available from: 2014-02-04 Created: 2014-02-04 Last updated: 2014-04-07Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Authority records BETA

Sarkar, AnjanaMikkola, Jyri-Pekka

Search in DiVA

By author/editor
Sarkar, AnjanaMikkola, Jyri-Pekka
By organisation
Department of Chemistry
Chemical SciencesMaterials ChemistryBiomaterials Science

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 148 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf