1. Cell response on laser-patterned Ti/Zr/Ti and Ti/Cu/Ti multi-layer systems
- Author
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Petrović, Suzana, Božinović, Nevena, Rajić, Vladimir, Ninković, Danijela Stanisavljević, Kisić, Danilo, Stevanović, Milena, and Stratakis, Emmanuel
- Subjects
Condensed Matter - Materials Science ,E.1 - Abstract
Arranged patterns obtained by ultrafast laser processing on the surface of Ti/Cu/Ti/Si and Ti/Zr/Ti/Si thin film systems are reported. Two differently designed multilayer thin films, Ti/Cu/Ti/Si and Ti/Zr/Ti/Si, were deposited on silicon by the ion sputtering method. The bioactive surfaces on these systems involve the formation of laser-induced periodic surface structures (LIPSS) in each of the laser-written lines of mesh patterns on 5x5 mm areas. The formation of nano- and micro-patterns with an ultra-thin oxide film on the surfaces was used to observe the effects of morphology and proliferation of the MRC-5 cell culture line. To determine whether Ti-based thin films have a toxic effect on living cells, an MTT assay was performed. The relative cytotoxic effect as a percentage of surviving cells showed that there was no difference in cell number between the Ti-based thin films and the control cells. There was also no difference in the viability of the MRC-5 cells, except for the Ti/Cu/Ti/Si system, where there was a slight 10% decrease in cell viability., Comment: 15 pages, 6 figures
- Published
- 2023
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