Abstract
The radial compression properties of single DNA molecules have been studied using vibrating scanning polarization force microscopy. By imaging DNA molecules at different vibration amplitude set-point values, we obtain the correlations between radially applied force and DNA compression, from which the radial compressive elasticity can be deduced. The estimated elastic modulus is under small external forces and increases to for large loads.
- Received 7 May 2004
DOI:https://doi.org/10.1103/PhysRevE.71.062901
©2005 American Physical Society