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Proceedings Paper

Laser manipulation of bio/biomimetic materials
Author(s): Toru Takasone; Saulius Juodkazis; Shigeki Matsuo; Akira Yamaguchi; Keiji Sasaki; Jun-ichi Hotta; Hiroaki Misawa
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Paper Abstract

We demonstrate a few examples of laser trapping and manipulation technique being applied for the measurements of small forces in the range of fN-pN and for laser microfabrication. We discuss prospective principles applicable for future nano/micro-mechanical tools. Elastic properties of microtubules of 24 nm in diameter were determined, a gold particle of 0.25 μm in diameter was laser trapped and manipulated. Paramagnetic microspheres were DNA-anchored to a glass substrate for measurement of elastic properties of DNA by evanescent light scattering. Also, a gold particle was attached to DNA and laser manipulated. The motion of the DNA molecule controlled. The spring constant of the DNA was determined by using thermodynamical analysis of evanescent light scattering.

Paper Details

Date Published: 19 February 2003
PDF: 6 pages
Proc. SPIE 4830, Third International Symposium on Laser Precision Microfabrication, (19 February 2003); doi: 10.1117/12.486512
Show Author Affiliations
Toru Takasone, Univ. of Tokushima (Japan)
Saulius Juodkazis, Univ. of Tokushima (Japan)
Shigeki Matsuo, Univ. of Tokushima (Japan)
Akira Yamaguchi, Univ. of Tokushima (Japan)
Keiji Sasaki, Hokkaido Univ. (Japan)
Jun-ichi Hotta, Hokkaido Univ. (Japan)
Hiroaki Misawa, Univ. of Tokushima (Japan)

Published in SPIE Proceedings Vol. 4830:
Third International Symposium on Laser Precision Microfabrication
Isamu Miyamoto; Kojiro F. Kobayashi; Koji Sugioka; Reinhart Poprawe; Henry Helvajian, Editor(s)

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