Publications


Title : Spontaneous rhythmic motion of a polymer chain in a continuous-wave laser field

Language: English
Type: Article
Authors: Hiroyuki Kitahata, Hiroyuki Mayama and Kenichi Yoshikawa
Journal: Physical Review E
ISSN: 1063-651X
Volume: 70
Number: 2
Month: 8
Year: 2004
Actual year: 2004
doi:   10.1103/physreve.70.021910
Abstract: Recently, it has been found that a giant DNA molecule exhibits a repetitive change in conformation between an elongated coil and folded compact states under irradiation by a continuous IR laser. We report here a theoretical model to explain such spontaneous rhythmic motion. The generation of the rhythm can be attributed to the competition between optical attraction in the compact state and the instability of the compact state at the laser focus due to heating. This rhythmic conformational change is discussed in relation to the working mechanism of biological molecular motors.

"Spontaneous rhythmic motion of a polymer chain in a continuous-wave laser field"

Hiroyuki Kitahata, Hiroyuki Mayama and Kenichi Yoshikawa, Physical Review E, 70, (2004)