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Interactions of cells with oxide thin films

Abstract : In the present work we demonstrate how oxide thin films can be used as bioactive surfaces, a field of research which is still underexplored. For this purpose, thin films of TiO2, Al2O3, VOx and some others were deposited on glass substrates using the Pulsed Laser Deposition (PLD) technique, and adhesion, proliferation and differentiation of human bone marrow-derived mesenchymal stem cells were evaluated. Cell behavior was analyzed with respect to the various key surface parameters such as chemistry, wettability, morphology and the thickness of films.Our results indicate that thin films of TiO2 and Al2O3 can not only support mesenchymal stem cells adhesion and growth, but also can be used to influence osteogenic and chondrogenic differentiation path. Additionally, effect of oxide thin films on adhesion and growth of cancer cell lines was studied. We showed that culturing these cell lines on thin films affects their growth and, therefore, could be a valuable method to perform screening tests with drugs.This work will provide a better understanding of correlation between surface chemistry and cellular response, which has a high significance in the field of biomaterials fabrication.
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  • HAL Id : tel-02499863, version 1

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Mariya Khokhlova. Interactions of cells with oxide thin films. Biomaterials. Normandie Université, 2019. English. ⟨NNT : 2019NORMC241⟩. ⟨tel-02499863⟩

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