title: Molecular interactions in surface-assembled monolayers of short double-stranded DNA.
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.
authors.affiliation: Center for Microsystems for the Life Sciences, University of California, Santa Barbara, California 93117, USA.
authors.forename: Ling
authors.initials: L
authors.lastname: Huang
authors.forename: Erkin
authors.initials: E
authors.lastname: Seker
authors.forename: James P
authors.initials: JP
authors.lastname: Landers
authors.forename: Matthew R
authors.initials: MR
authors.lastname: Begley
authors.forename: Marcel
authors.initials: M
authors.lastname: Utz
mesh_terms: D000042:Absorption; D004247:DNA / Q000737:chemistry*; D008962:Models, Theoretical
chemical_list: D004247:DNA