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Ultra-fast, ultra-intense laser has clean-cut advantage
Date:3/13/2008

use less collateral tissue damage. In dentistry, the laser can treat tooth decay without harming the rest of the tooth structure.

Associate Professor Yuwen Zhang and Professor Jinn-Kuen Chen recently received a grant from the National Science Foundation to use the laser to sinter metal powdersturn them into a solid, yet porous, mass using heat but without massive liquefactiona process which can help improve the bond between joint implants and bone.

With the laser, we can melt a very thin strip around titanium micro- and nanoparticles and ultimately control the porosity of the bridge connecting the bone and the alloy, Zhang said. The procedure allows the particles to bond strongly, conforming to the two different surfaces.

Tzou said the installation of a new laser laboratory at MU will enable research teams to aggressively pursue success at a national level. The femtosecond laser lab, components of which were installed in January, was made possible through a gift from engineering alumnus Bill Thompson and his wife Nancy. Tzou noted that the arrival of the lab at MU has initiated additional funding requests that will utilize the new femtosecond laser in research. Zhang, Chen and engineering professor Frank Feng also were the recipients of a United States Department of Defense grant to research possible military applications of the UUL.

Tzou said most research with femtosecond lasers, thus far, has focused on engineering materials such as metals and semiconductors. Because of the unique infrastructure at MU, where the college of engineering and the medical school are located on the same campus, Tzou has been able to attract faculty members who have renowned expertise in medicine and laser technology to collaborate.


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Contact: Bryan E. Jones
jonesbry@missouri.edu
573-882-9144
University of Missouri-Columbia
Source:Eurekalert  

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