Laser manipulation of bio-/biomimetic materials
conference contribution
posted on 2024-07-09, 23:14 authored by Toru Takasone, Saulius JuodkazisSaulius Juodkazis, Shigeki Matsuo, Akira Yamaguchi, Keiji Sasaki, Jun Ichi Hotta, Hiroaki MisawaWe 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.
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0277-786XJournal title
Proceedings of SPIE - The International Society for Optical EngineeringConference name
SPIE - The International Society for Optical EngineeringVolume
4830Pagination
5 ppPublisher
SPIECopyright statement
Copyright © 2003 Society of Photo-Optical Instrumentation Engineers. This paper was originally published in Proceedings of SPIE (Vol. 4830), and is available from: http://dx.doi.org/10.1117/12.486512. The published version of the paper is reproduced here in accordance with the copyright policy of the publisher. One print or electronic copy may be made for personal use only. Systematic electronic or print reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.Language
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