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Investigation of the in vitro photocatalytic antibacterial activity of nanocrystalline TiO2 and coupled TiO2/Ag containing copolymer on the surface of medical grade titanium

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Tartalom: http://real.mtak.hu/36574/
Archívum: MTA Könyvtár
Gyűjtemény: Status = Published


Type = Article
Cím:
Investigation of the in vitro photocatalytic antibacterial activity of nanocrystalline TiO2 and coupled TiO2/Ag containing copolymer on the surface of medical grade titanium
Létrehozó:
GyÜrgyey, Ágnes
JanovĂĄk, LĂĄszlĂł
Ádåm, Andrås
Kopniczky, Judit
TĂłth, KrisztiĂĄn L.
Deåk, Ágota
DĂŠkĂĄny, Imre
LaczkĂłnĂŠ TurzĂł, Kinga MĂłnika
Dátum:
2016
Téma:
QD Chemistry / kĂŠmia
RK Dentistry / fogĂĄszat
Tartalmi leírás:
Antibacterial surfaces have been in the focus of research for years, driven by an unmet clinical need to manage an increasing incidence of implant-associated infections. The use of silver has become a topic of interest because of its proven broad-spectrum antibacterial activity and track record as a coating agent of soft tissue implants and catheters. However, for the time being, the translation of these technological achievements for the improvement of the antibacterial property of hard tissue titanium (Ti) implants remains unsolved. In our study, we focused on the investigation of the photocatalysis mediated antibacterial activity of silver (Ag), and Ti nanoparticles instead of their pharmacological effects. We found that the photosensitisation of commercially pure titanium discs by coating them with an acrylate-based copolymer that embeds coupled Ag/Ti nanoparticles can initiate the photocatalytic decomposition of adsorbed S. salivarius after the irradiation with an ordinary visible light source. The clinical isolate of S. salivarius was characterised with MALDI-TOF mass spectrometer, while the multiplication of the bacteria on the surface of the discs was followed-up by MTT assay. Concerning practical relevance, the infected implant surfaces can be made accessible and irradiated by dental curing units with LED and plasma arc light sources, our research suggests that photocatalytic copolymer coating films may offer a promising solution for the improvement of the antibacterial properties of dental implants.
Nyelv:
angol
Típus:
Article
PeerReviewed
info:eu-repo/semantics/article
Formátum:
text
Azonosító:
GyÜrgyey, Ágnes and Janovåk, Låszló and Ádåm, Andrås and Kopniczky, Judit and Tóth, Krisztiån L. and Deåk, Ágota and DÊkåny, Imre and LaczkónÊ Turzó, Kinga Mónika (2016) Investigation of the in vitro photocatalytic antibacterial activity of nanocrystalline TiO2 and coupled TiO2/Ag containing copolymer on the surface of medical grade titanium. JOURNAL OF BIOMATERIALS APPLICATIONS. pp. 1-13. ISSN 0885-3282
Kapcsolat:
MTMT:3071947; doi:10.1177/0885328216633374