Variation of biocompatibility of titanium dioxide film by femtosecond laser irradiation

Togo Shinonaga, Masahiro Tsukamoto, Naoto Horigutchi, Yuichiro Ito, Akiko Nagai, Kimihiro Yamashita, Takao Hanawa, Nobuhiro Matsushita, Xie Guoqiang, Masanari Takahashi, Nobuyuki Abe

Research output: Contribution to conferencePaper

Abstract

Periodic nanostructures formation on Titanium dioxide (TiO2) film by scanning of femtosecond laser beam spot is reported. Cell attachment could be controlled by periodic nanostructures formation on the film. Then, biocompatibility of the film could be improved. The film was formed on Ti plate by aerosol beam irradiation. Periodic nanostructures, lying perpendicular to the laser electric field polarization vector, were formed on large areas of the film by femtosecond laser irradiation for scanning speed of 1mm/sec at laser fluence of 0.35 J/cm2. The period of periodic nanostructures on the film was about 200 nm. The period of periodic nanostructures on the film was much shorter than the period on Ti plate. By cell test, cells were attached to periodic nanostructures of the film. Then, cells were formed periodically on the film.

Original languageEnglish
Pages705-709
Number of pages5
DOIs
Publication statusPublished - 2012
Externally publishedYes
Event31st International Congress on Applications of Lasers and Electro-Optics, ICALEO 2012 - Anaheim, CA, United States
Duration: Sep 23 2012Sep 27 2012

Other

Other31st International Congress on Applications of Lasers and Electro-Optics, ICALEO 2012
CountryUnited States
CityAnaheim, CA
Period9/23/129/27/12

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials

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    Shinonaga, T., Tsukamoto, M., Horigutchi, N., Ito, Y., Nagai, A., Yamashita, K., Hanawa, T., Matsushita, N., Guoqiang, X., Takahashi, M., & Abe, N. (2012). Variation of biocompatibility of titanium dioxide film by femtosecond laser irradiation. 705-709. Paper presented at 31st International Congress on Applications of Lasers and Electro-Optics, ICALEO 2012, Anaheim, CA, United States. https://doi.org/10.2351/1.5062529