The behavior of DNA molecules was studied in a nanofluidic device near the interface of two regions. An electric field was applied to drive the molecules. With removal of the electric field, the molecules recoil to the higher-entropy region with a profile characteristic of a force localized to the interface. Results showed that this is consistent with a confinement-mediated entropic force, distinct from the well-known entropic elasticity.
|Original language||English (US)|
|Number of pages||4|
|Journal||Physical Review Letters|
|State||Published - Mar 25 2002|
ASJC Scopus subject areas
- Physics and Astronomy(all)