Jui-Ching Wu, Tsang-Lang Lin, U. Jeng
Nov 15, 2006
Citations
0
Influential Citations
11
Citations
Journal
Physica B-condensed Matter
Abstract
Abstract In situ neutron reflectivity was used to study the DC-Chol and TC-Chol monolayers at the air–liquid interface in the presence and absence of DNA in the subphase. It was found that the DC-Chol is more effective in adsorbing the DNA than the TC-Chol. It was also found that a compact DNA layer formed beneath the DC-Chol monolayer with a DNA gap spacing around 20 A and a less compact DNA layer adsorbed to the TC-Chol monolayer with a DNA spacing around 60 A, as estimated from the determined neutron scattering length density. From the determined neutron scattering length density profiles, the adsorbed DNA somewhat penetrates into the head group region of the charged lipids.