Self-oscillating polymer chain in a laser field
Abstract
We have investigated the dynamical behaviour of the rhythmic conformational change between the folded compact state and the unfolded state in a single polymer chain under thermodynamically open conditions. It is shown that the spontaneous rhythmic change in the conformation of a single polymer chain (T4DNA, 166 kbp, contour length: 56 μm) is generated using a focused continuous wave (CW) Nd:YAG laser beam (wavelength λ
= 1064 nm), where the focused laser beam plays a dual role, both trapping a