Abstract
We present an experimental study of the energetics of repulsion between end-grafted fragments of double-stranded DNA. The absorption isotherm of thiolated DNA fragments has been measured as a function of DNA chain length as well as the salinity of the surrounding solution. The results are consistent with a simple excluded-volume model of the interaction between neighboring DNA strands.
Original language | English (US) |
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Pages (from-to) | 11574-11580 |
Number of pages | 7 |
Journal | Langmuir |
Volume | 26 |
Issue number | 13 |
DOIs | |
State | Published - Jul 6 2010 |
Externally published | Yes |
ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics
- Surfaces and Interfaces
- Spectroscopy
- Electrochemistry