Laser manipulation of bio/biomimetic materials

Toru Takasone; Saulius Juodkazis; Shigeki Matsuo; Akira Yamaguchi; Keiji Sasaki; Jun-ichi Hotta; Hiroaki Misawa

doi:10.1117/12.486512

19 February 2003 Laser manipulation of bio/biomimetic materials

Toru Takasone, Saulius Juodkazis, Shigeki Matsuo, Akira Yamaguchi, Keiji Sasaki, Jun-ichi Hotta, Hiroaki Misawa

Proceedings Volume 4830, Third International Symposium on Laser Precision Microfabrication; (2003) https://doi.org/10.1117/12.486512
Event: LAMP 2002: International Congress on Laser Advanced Materials Processing, 2002, Osaka, Japan

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.

Citation Download Citation

Toru Takasone, Saulius Juodkazis, Shigeki Matsuo, Akira Yamaguchi, Keiji Sasaki, Jun-ichi Hotta, and Hiroaki Misawa "Laser manipulation of bio/biomimetic materials", Proc. SPIE 4830, Third International Symposium on Laser Precision Microfabrication, (19 February 2003); https://doi.org/10.1117/12.486512

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