Rotational Speed Control by Optical PWM Operation for Single Cells

Makoto Yoshida; Ichirou Ishimaru; Katsumi Ishizaki; Toshiki Yasokawa; Yusuke Inoue

doi:10.20965/jrm.2006.p0824

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JRM Vol.18 No.6 pp. 824-826

doi: 10.20965/jrm.2006.p0824

(2006)

Letter:

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Rotational Speed Control by Optical PWM Operation for Single Cells

Makoto Yoshida^, Ichirou Ishimaru^, Katsumi Ishizaki^,
Toshiki Yasokawa^, and Yusuke Inoue^**

^*Faculty of Engineering, Kagawa University, 2217-20 Hayashi-cho, Takamatsu, Kagawa 761-0396, Japan

^**Fuji Xerox Corporation, 2-17-22 Akasaka, Minato-ku, Tokyo 107-0052, Japan

Received:

March 23, 2006

Accepted:

July 14, 2006

Published:

December 20, 2006

Keywords:

cell, manipulation, optical tweezers, rotation, PWM

Abstract

To rotating single cells, we harness light pressure generated by light absorption as a rotating torque, illuminating the two proximal points from different directions using two beams. Rotational speed is controlled by optical pulse width modulation (PWM) that controls the amount of light received per unit of time by controlling the time of illumination. To change the illumination time, the pencil of rays is scanned by a galvanometric mirror.

Cite this article as:

M. Yoshida, I. Ishimaru, K. Ishizaki, T. Yasokawa, and Y. Inoue, “Rotational Speed Control by Optical PWM Operation for Single Cells,” J. Robot. Mechatron., Vol.18 No.6, pp. 824-826, 2006.

Data files:

References

[1] T. Yasokawa, I. Ishimaru, F. Oohira, R. Hyodo, H. Kobayashi, A. Hayashi, Y. Inoue, and K. Ishizaki, “Proposal of spectroscopytomography of single-cell,” Optomechatronic Micro/Nano Components, Devices, and Systems, Proceedings of SPIE, Vol.5604, pp. 108-117, 2004.
[2] H. Kobayashi, I. Ishimaru, R. Hyodo, T. Yasokawa, K. Ishizaki, S. Kuriyama, T. Masaki, S. Nakai, K. Takegawa, and N. Tanaka, “A precise method for rotating single cells,” Appl. Phys. Lett., in print.
[3] C.-K. Sun, Y.-C. Huang, P. C. Cheng, H.-C. Liu, and B.-L. Lin, “Cell manipulation by used of diamond microparticles as handles of optical tweezers,” JOSA B, Vol.18, Issue 10, p. 1483, 2001.
[4] E. Higurashi, H. Ukita, H. Tanaka, and O. Ohguchi, “Optically induced rotation of anisotropic micro-objects fabricated by surface micromachining,” Appl. Phys. Lett., 64, pp. 2209-2210, 1994.

This article is published under a Creative Commons Attribution-NoDerivatives 4.0 Internationa License.

[1] [1] T. Yasokawa, I. Ishimaru, F. Oohira, R. Hyodo, H. Kobayashi, A. Hayashi, Y. Inoue, and K. Ishizaki, “Proposal of spectroscopytomography of single-cell,” Optomechatronic Micro/Nano Components, Devices, and Systems, Proceedings of SPIE, Vol.5604, pp. 108-117, 2004.

[2] [2] H. Kobayashi, I. Ishimaru, R. Hyodo, T. Yasokawa, K. Ishizaki, S. Kuriyama, T. Masaki, S. Nakai, K. Takegawa, and N. Tanaka, “A precise method for rotating single cells,” Appl. Phys. Lett., in print.

[3] [3] C.-K. Sun, Y.-C. Huang, P. C. Cheng, H.-C. Liu, and B.-L. Lin, “Cell manipulation by used of diamond microparticles as handles of optical tweezers,” JOSA B, Vol.18, Issue 10, p. 1483, 2001.

[4] [4] E. Higurashi, H. Ukita, H. Tanaka, and O. Ohguchi, “Optically induced rotation of anisotropic micro-objects fabricated by surface micromachining,” Appl. Phys. Lett., 64, pp. 2209-2210, 1994.

Rotational Speed Control by Optical PWM Operation for Single Cells

Makoto Yoshida*, Ichirou Ishimaru*, Katsumi Ishizaki*, Toshiki Yasokawa*, and Yusuke Inoue**

Makoto Yoshida^, Ichirou Ishimaru^, Katsumi Ishizaki^,
Toshiki Yasokawa^, and Yusuke Inoue^**