Laser-induced wettability characteristics modification and the effect thereof on cell response on a titanium alloy

J. Lawrence, L. Hao

Research output: Contribution to conferencePaper

Abstract

It was found that interaction of a Nd:YAG laser beam with the Ti6Al4V alloy resulted in the wettability characteristics of the bio-metal improving. Such improvements in the wettability characteristics of the Ti6Al4V alloy were found to be due to: an increase in the surface roughness; and increase in the surface oxygen content and an increase in the polar component of the surface energy. From osteoblast cell response tests it was ascertained that cell adhesion and proliferation on the Nd:YAG laser treated Ti6Al4V alloy samples was considerably greater than on the untreated samples. By isolating the effects of surface roughness it was possible to confirm or refute the existence of a correlation between wettability characteristics and osteoblast cell bioactivity for the Nd:YAG laser treated Ti6Al4V alloy. The findings indicate that wettability characteristics (especially the surface oxygen content and the polar component of the surface energy) play an important role in promoting cell proliferation, particularly when surface roughness was simultaneously increased. Thus it was possible to conclude that the wettability characteristics of the Nd:YAG laser treated Ti6Al4V alloy were correlated to osteoblast cell bioactivity.

Original languageEnglish
Publication statusPublished - 1 Dec 2006
Externally publishedYes
Event25th International Congress on Applications of Laser and Electro-Optics - Scottsdale, United States
Duration: 30 Oct 20062 Nov 2006

Conference

Conference25th International Congress on Applications of Laser and Electro-Optics
Abbreviated titleICALEO 2006
CountryUnited States
CityScottsdale
Period30/10/062/11/06

ASJC Scopus subject areas

  • Geochemistry and Petrology
  • Electrical and Electronic Engineering

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