single-rb.php

JRM Vol.18 No.6 pp. 824-826
doi: 10.20965/jrm.2006.p0824
(2006)

Letter:

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:
Makoto Yoshida, Ichirou Ishimaru, Katsumi Ishizaki,
Toshiki Yasokawa, and Yusuke 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. [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.

*This site is desgined based on HTML5 and CSS3 for modern browsers, e.g. Chrome, Firefox, Safari, Edge, Opera.

Last updated on Sep. 24, 2021