| Issue |
EPL
Volume 85, Number 3, February 2009
|
|
|---|---|---|
| Article Number | 38003 | |
| Number of page(s) | 5 | |
| Section | Interdisciplinary Physics and Related Areas of Science and Technology | |
| DOI | https://doi.org/10.1209/0295-5075/85/38003 | |
| Published online | 09 February 2009 | |
Can re-entrance be observed in force-induced transitions?
Department of Physics, Banaras Hindu University - Varanasi 221 005, India
Corresponding author: yashankit@yahoo.com
Received:
6
May
2008
Accepted:
9
January
2009
A large conformational change in the reaction co-ordinate and the role of the solvent in the formation of base pairing are combined to settle a long-standing issue, i.e. prediction of re-entrance in the force-induced transition of DNA. A direct way to observe the re-entrance, i.e. a strand that goes to the closed state from the open state and again to the open state with increasing temperature, appears difficult to be achieved in the laboratory. An experimental protocol (in direct way) in the constant force ensemble is being proposed for the first time that will enable the observation of the re-entrance behavior in the force-temperature plane. Our exact results for a small oligonucleotide that forms a hairpin structure provide the evidence that re-entrance can be observed.
PACS: 82.35.Jk – Copolymers, phase transitions, structure / 36.20.Ey – Conformation (statistics and dynamics) / 64.90.+b – Other topics in equations of state, phase equilibria, and phase transitions
© EPLA, 2009
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.