To better understand the formation of short-chain acids in combustion systems
| dc.creator | Battin-Leclerc, Frédérique | |
| dc.creator | Konnov, A. A. | |
| dc.creator | Jaffrezo, J. L. | |
| dc.creator | Legrand, M. | |
| dc.date | 2008-01-17 | |
| dc.date.accessioned | 2026-07-07T08:54:59Z | |
| dc.date.available | 2026-07-07T08:54:59Z | |
| dc.description | Our study aims at a better control and understanding of the transfer of a complex [DNA supercoiled plasmid - dodecyltrimethylammonium surfactant] layer from a liquid-vapour water interface onto a silicon surface without any additional cross-linker. The production of the complexed layer and its transfer from the aqueous subphase to the substrate is achieved with a Langmuir-Blodgett device. The substrate consists of a reconstructed boron doped silicon substrate with a nanometer-scale roughness. Using X-ray photoelectron spectroscopy and atomic force microscopy measurements, it is shown that the DNA complexes are stretched in a disorderly manner throughout a 2-4 nm high net-like structure. The mechanism of transfer of this layer onto the planar surface of the semi-conductor and the parameters of the process are analysed and illustrated by atomic force microscopy snapshots. The molecular layer exhibits the typical characteristics of a spinodal decomposition pattern or dewetting features. Plasmid molecules appear like long flattened fibers covering the surface, forming holes of various shapes and areas. The cluster-cluster aggregation of the complex structure gets very much denser on the substrate edge. The supercoiled DNA plasmids undergo conformational changes and a high degree of condensation and aggregation is observed. | |
| dc.identifier | https://arxiv.org/abs/0801.2645 | |
| dc.identifier | http://arxiv.org/abs/0801.2645 | |
| dc.identifier | Combustion Science and Technology 180 (2008) 343-370 | |
| dc.identifier | doi:10.1080/00102200701740782 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/146137 | |
| dc.subject | Chemical Physics | |
| dc.title | To better understand the formation of short-chain acids in combustion systems | |
| dc.type | text |