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      Texturing of titanium (Ti6Al4V) medical implant surfaces with MHz-repetition-rate femtosecond and picosecond Yb-doped fiber lasers

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      Author
      Erdoǧan, M.
      Öktem, B.
      Kalaycioǧlu H.
      Yavaş, S.
      Mukhopadhyay P.K.
      Eken, K.
      Özgören, K.
      Aykaç, Y.
      Tazebay, U.H.
      Ilday F.O.
      Date
      2011
      Source Title
      Optics Express
      Print ISSN
      10944087
      Publisher
      Optical Society of American (OSA)
      Volume
      19
      Issue
      11
      Pages
      10986 - 10996
      Language
      English
      Type
      Article
      Item Usage Stats
      161
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      134
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      Abstract
      We propose and demonstrate the use of short pulsed fiber lasers in surface texturing using MHz-repetition-rate, microjoule- and sub-microjoule-energy pulses. Texturing of titanium-based (Ti6Al4V) dental implant surfaces is achieved using femtosecond, picosecond and (for comparison) nanosecond pulses with the aim of controlling attachment of human cells onto the surface. Femtosecond and picosecond pulses yield similar results in the creation of micron-scale textures with greatly reduced or no thermal heat effects, whereas nanosecond pulses result in strong thermal effects. Various surface textures are created with excellent uniformity and repeatability on a desired portion of the surface. The effects of the surface texturing on the attachment and proliferation of cells are characterized under cell culture conditions. Our data indicate that picosecond-pulsed laser modification can be utilized effectively in low-cost laser surface engineering of medical implants, where different areas on the surface can be made cell-attachment friendly or hostile through the use of different patterns. © 2011 Optical Society of America.
      Keywords
      Animal cell culture
      Dental prostheses
      Fiber lasers
      Pulse repetition rate
      Textures
      Thermal effects
      Titanium
      Ytterbium
      Cell attachments
      Culture conditions
      Dental implants
      Femtoseconds
      Human cells
      Laser modifications
      Low-cost lasers
      Medical implants
      Microjoule
      Micron scale
      Nanosecond pulse
      Pico-second pulse
      Picoseconds
      Short-pulsed
      Surface textures
      Surface-texturing
      Thermal heat
      Ti-6al-4v
      Titanium-based
      Yb-doped fiber lasers
      Pulsed lasers
      biomaterial
      titanium
      titanium alloy (TiAl6V4)
      ytterbium
      acoustics
      article
      cell adhesion
      cell differentiation
      cell proliferation
      chemistry
      equipment design
      human
      laser
      materials testing
      methodology
      optics
      scanning electron microscopy
      surface property
      tumor cell line
      Acoustics
      Biocompatible Materials
      Cell Adhesion
      Cell Differentiation
      Cell Line, Tumor
      Cell Proliferation
      Equipment Design
      Humans
      Lasers
      Materials Testing
      Microscopy, Electron, Scanning
      Optics and Photonics
      Surface Properties
      Titanium
      Ytterbium
      Permalink
      http://hdl.handle.net/11693/21920
      Published Version (Please cite this version)
      http://dx.doi.org/10.1364/OE.19.010986
      Collections
      • Department of Molecular Biology and Genetics 426
      • Department of Physics 2299
      • Institute of Materials Science and Nanotechnology (UNAM) 1775
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