Naturally occurring, optically driven, cellular rotor

Dharmadhikari, J. A. ; Roy, S. ; Dharmadhikari, A. K. ; Sharma, S. ; Mathur, D. (2004) Naturally occurring, optically driven, cellular rotor Applied Physics Letters, 85 (24). pp. 6048-6050. ISSN 0003-6951

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We report the conversion of optical energy into mechanical energy by naturally occurring red blood cells (RBCs) placed in an optical trap. A trapped RBC undergoes folding due to the elastic nature of its cell membrane. On use of circularly polarized light in the trap, the folded RBCs rotate, indicating their birefringence. The cellular rotation speed depends on the size of the blood cells and on laser power. Rotating RBCs have implications for naturally occurring, optically driven, rotary micromachines.

Item Type:Article
Source:Copyright of this article belongs to American Institute of Physics.
Keywords:Blood; Rotors; Cellular Effects Of Radiation; Biological Effects Of Laser Radiation; Radiation Pressure; Biomembranes; Birefringence
ID Code:68986
Deposited On:08 Nov 2011 04:30
Last Modified:08 Nov 2011 04:30

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