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Interaction of nanostructured TiO2biointerfaces with stem cells and biofilm-forming bacteria

M. Kulkarni, I. Junkar, P. Humpolíček, Z. Capáková, KA. Radaszkiewicz, N. Mikušová, J. Pacherník, M. Lehocký, A. Iglič, M. Hanáčková, M. Mozetič,

. 2017 ; 77 (-) : 500-507. [pub] 20170322

Jazyk angličtina Země Nizozemsko

Typ dokumentu časopisecké články

Perzistentní odkaz   https://www.medvik.cz/link/bmc18010542

Nanostructured TiO2nanotubes (NTs) of diameters from 15 to 100nm were fabricated by an electrochemical anodization process. Biofilm-positive strains of Bacillus cereus and Pseudomonas aeruginosa behaved similarly on all TiO2NTs as well as on native titanium (Ti) foil. The adhesion and growth of mesenchymal stem cells (MSc), embryonic stem cells (ESc), and pure cardiomyocytes derived from ESc exhibited significant differences. MSc as well as ESc were, in contrast to cardiomyocytes, able to adhere, and grow on TiO2NTs. A correlation between NTs diameter and cell behaviour was however observed in the case of MSc and ESc. MSc were not in a physiological state in the case of 100nm TiO2NTs, while ESc were not able to grow on 15nm TiO2NTs. It can be stated that these differences can be assigned to different diameters of the NTs but not to the chemistry of the surface. This is the first study describing the comprehensive behaviour of both eukaryotic and prokaryotic cells on TiO2NTs. On the basis of obtained results, it can be concluded that new generation of medical devices providing selective cell behaviour can be fabricated by optimizing the nanoscale morphology of TiO2.

Citace poskytuje Crossref.org

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