A comparative study of apatite growth and adhesion on a laser-functionalized titanium surface

The laser processing of titanium has been proven to improve biological responses of the surface. In this paper, the Direct Laser Interference Patterning (DLIP) method has been proposed as a single-step functionalization of pre-modified titanium surfaces for biomedical applications. Immersion in Hank's solution for the deposition of calcium phosphate coatings was applied to evaluate the biomedical potential of modified Ti substrates. The bioactive effect and adhesion force of the Ca-P coating were investigated by X-ray photoelectron spectroscopy and scratch tests with subsequent scanning electron microscopy observations and energy dispersive spec-troscopy measurements. In general, the results confirmed that laser treatment positively influences bone-like apatite formation and has an impact on the surface wear resistance.

Automated summary

The study demonstrates that laser processing improves the biological responses of titanium surfaces. The Direct Laser Interference Patterning (DLIP) method is proposed as a single-step functionalization technique for pre-modified titanium surfaces in biomedical applications. Calcium phosphate coatings were deposited through immersion in Hank's solution to evaluate the biomedical potential of modified Ti substrates. X-ray photoelectron spectroscopy, scratch tests, scanning electron microscopy, and energy dispersive spectroscopy were employed to investigate the bioactive effect and adhesion force of the Ca-P coating. Overall, the results confirm the positive influence of laser treatment on bone-like apatite formation and surface wear resistance.