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- W4385462080 abstract "The creation of novel biocompatible Ti-based thin films with a Zr or Cu sub-layer modified by ultrafast laser processing is studied. In order to prepare bioactive surfaces, ultrafast laser processing is focused on the formation of laser-induced periodic surface structures (LIPSS) with the production of oxide phases at the surfaces. Two differently designed multilayer thin films Ti/Cu/Ti and Ti/Zr/Ti were deposited on the silicon using the ion sputtering method. The Ti thin film contains Cu or Zr sub-layer (thickness of 10 nm) at the 10 nm below of the surface. The composition and surface morphology variations for these systems, deposited and laser-processed under the same experimental conditions, were caused only by different thermo-physical properties of the sub-layer (Cu or Zr). The surface morphology in the form of LIPSS, led to improved cell adhesion and stable cells/thin films interface compared to as-deposited samples. Field-emission scanning electron microscopy and MTT analysis revealed that laser processing of both systems increased cell adhesion, proliferation and metabolical activity of L929 mouse fibroblast cells compared to non-modified flat surfaces. Overall, biocompatibility of Zr-containing thin films are better than Ti/Cu/Ti systems. Further, laser processing and formation of LIPSS makes Ti/Zr/Ti thin films excellent candidate for biomedical application." @default.
- W4385462080 created "2023-08-02" @default.
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- W4385462080 date "2023-10-01" @default.
- W4385462080 modified "2023-10-16" @default.
- W4385462080 title "Influence of zirconium and copper sub-layer in cell integrations on femtosecond laser-processed Ti thin films" @default.
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- W4385462080 doi "https://doi.org/10.1016/j.matchemphys.2023.128286" @default.
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