Ab initio study of the interaction of water with cluster models of the aluminum terminated (0001) alpha-aluminum oxide surface

Article Abstract:

A study was conducted to analyze the interaction of water with the (0001) surface of alpha-Al2O3 using initio computations on three cluster models. Results indicated that the surface relaxation parameters and energies for the aluminum terminated (0001) surface of alpha-aluminum oxide were simialr to those from periodic ab initio techniques. In addition, the computed energies for water adsorption compared well to experimental values.

author: Wittbrodt, J.W., Hase, W.L., Schlegel, H.B.
Water, Aluminum oxide

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Electrostatic interaction force between planar surfaces due to 3-D distribution of sources of potential (charge)

Article Abstract:

A study was conducted to analyze a closed form solution for the electrostatic double-layer force between two-planar surfaces with sources of potential distributed along the x-, y-, and z-axes. The expression for the Lorentz force was utilized to examine the double-layer force. Experimental results indicated that surface heterogeneity may generate both attractive and repulsive interaction forces.

author: Khachatourian, Armik V.M., Wistrom, Anders O.
Electrostatics

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Ligand receptor dynamics at streptavidin-coated particle surfaces: a flow cytometric and spectrofluorimetric study

Article Abstract:

A study was conducted to analyze the receptor surfaces of 6.2 micron diameter streptavidin-coated polystyrene beads and their possible application as platforms for biosensors. A combination of flow cytometric and centrifugation/fluorimetric approaches was carried out. Experimental results indicated that the quenching of the bound fluorescence was dependent on the surface density of the ligand.

author: Lopez, Gabriel P., Buranda, Tione, Sklar, Larry A., Nolan, John P., Jones, Greg M., Keij, Jan
Particles, Particulate matter, Ligands, Ligands (Chemistry), Fluorescein

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subjects list: Research, Surfaces (Materials), Surfaces (Technology)
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