Orientation and order of aqueous organic ions adsorbed to a solid surface
Article Abstract:
Polarized infrared spectroscopy in attenuated total reflection was used to investigate the orientation and adsorption of an aqueous organic ion having an anisotropic shape at an oxidized silicon surface with an opposite charge. The organic ion considered is the 1,4-dimethylpyridinium cation. The sticking behavior of the organic ion was found to be slightly greater than that of small inorganic ions of the same charge. Results also suggested that the organic ion at the surface act as an embryonic amphiphile.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 1999
User Contributions:
Comment about this article or add new information about this topic:
Morphological and compositional evolution of Pt-Si intermetallic thin films prepared by the activated adsorption of SiH4 on Pt(111)
Article Abstract:
The growth and evolution of Pt-Si intermetallic phases formed through chemical vapor deposition has been studied with scanning tunneling microscopy and Auger electron spectroscopy. The thin films were prepared by exposing a Pt(111) crystal to silane and then subjected to annealing treatments. Si forms clusters at the step edges which avoids centers of Pt terraces. Results indicate the clusters have an intermetallic nature with heights much larger than a Pt(111) step height.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 1999
User Contributions:
Comment about this article or add new information about this topic:
Electrostatic stitching in gel-phase supported phospholipid bilayers
Article Abstract:
Zwitterionic lipids when mixed with 20% mole % cationic lipids produce gel-phase supported lipid bilayers that are morphologically free of defects detectable using noncontact mode atomic force microscopy (AFM). A simple electrostatic argument suggests that the presence of cationic lipids might 'stitch' together the structure, even when the temperature is lowered below the gel-to-fluid phase transition.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2006
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: The deformation and adhesion of randomly rough and patterned surfaces. Interaction and deformation of elastic bodies: origin of adhesion hysteresis
- Abstracts: Comment on parts 1 and 2 of the series "electric double layer at the rutile (!!)) surface". Electric double layer at the rutile (110) surface. 2. adsorption of ions from molecular dynamics and X-ray experiments
- Abstracts: Linearly polarized emission of an organic semiconductor nanobelt. Single-walled carbon nanotube of controlled diameter and bundle size and their field emission properties
- Abstracts: Relaxation and short time dynamics of bulk liquids and fluids confined in spherical cavities and slit pores. Mesoscopic multiparticle collision dynamics of reaction-diffusion fronts
- Abstracts: Dynamics competition between catch and slip bonds in selectins bound to ligands. Influence of surface interactions on folding and forced unbinding of semiflexible chains