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

Laser manipulation of bio-/biomimetic materials

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

Science

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

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 was controlled. The spring constant of the DNA was determined by using thermodynamical analysis of evanescent light scattering.

Original language	English
Pages (from-to)	212-217
Number of pages	6
Journal	Unknown Journal
Volume	4830
DOIs	https://doi.org/10.1117/12.486512
Publication status	Published - 2002

Keywords

Elastic properties of DNA molecules
Evanescent light field
Laser manipulation
Laser trapping
Light pressure
Microtubule
Ponderomotive action of light

ASJC Scopus subject areas

Electrical and Electronic Engineering
Condensed Matter Physics

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AU - Takasone, Toru

AU - Juodkazis, Saulius

AU - Matsuo, Shigeki

AU - Yamaguchi, Akira

AU - Sasaki, Keiji

AU - Hotta, Jun Ichi

AU - Misawa, Hiroaki

PY - 2002

Y1 - 2002

N2 - 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 was controlled. The spring constant of the DNA was determined by using thermodynamical analysis of evanescent light scattering.

AB - 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 was controlled. The spring constant of the DNA was determined by using thermodynamical analysis of evanescent light scattering.

KW - Elastic properties of DNA molecules

KW - Evanescent light field

KW - Laser manipulation

KW - Laser trapping

KW - Light pressure

KW - Microtubule

KW - Ponderomotive action of light

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Laser manipulation of bio-/biomimetic materials

Abstract

Keywords

ASJC Scopus subject areas

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