Direct Laser Interference Patterning as the final step in functionalization of Ti-based biomedical materials

DATA FOR AN ARTICLE
Donata Kuczyńska-Zemła, Agata Sotniczuk, Jarosław Pura*, Maciej Spychalski, Roman Ostrowski, Marcin Pisarek, Piotr Bazarnik, Halina Garbacz
Direct Laser Interference Patterning as the final step in functionalization of Ti-based biomedical materials

Submitted to:
Advanced Engineering Materials
Online ISSN:1527-2648
Print ISSN:1438-1656

Abstract: In this study, the direct laser interference patterning (DLIP) method was proposed as the final universal step in surface functionalization, which can be applied to obtain a micrometric groove-like pattern in single-phase titanium biomaterials (α and β) with varying densities of crystal defects. Pure titanium (CP-Ti) and low Young modulus biomedical alloy (Ti-Nb-Ta-Zr) were modified with DLIP to create a surface pattern, which is promising for the cellular response. The objective of the investigation carried out was to evaluate the influence of the substrate on the surface properties of Ti-based materials after DLIP processing. The modified surfaces were characterized in terms of microstructure, roughness, chemical composition, wettability, and mechanical properties by using scanning electron microscopy (SEM), optical profilometry, X-ray photoelectron spectroscopy (XPS), contact angle measurements, and nanoindentation tests. Furthermore, corrosion tests were performed in Hank’s solution to examine the surface treatment’s impact on the investigated system’s corrosion resistance. The results confirmed that DLIP treatment with the proposed parameters is a versatile way to modify the surface of the titanium substrate with different levels of stiffness and hardness, which are altered by the manufacturing path.

Content*:
(DATA arranged in folders)
1.SEM - Scanning Electron Microscope observations after DLIP (surface and crosssection) 
2.OpticalProfilometry - Optical Profilometry of samples after DLIP
3.Nanohardness - Nanoindentation 
5.Wetting - wetting angle measurments
6.Corrosion

*) all files contain the following symbols in their names relating to the type of titanium sample:
TNTZ - samples made odf TNTZ alloy
TiG2/Ti - smaples made of Titanium Grade 2
SW - samples without Cold Eolling
CR - samples after Cold Rolling

Acknowledgments:
This work was supported by The National Science Centre Poland [Grant number 2022/45/B/ST5/03398] Principal Investigator: Halina Garbacz.