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.

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.

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.

Particles, Particulate matter, Ligands, Ligands (Chemistry), Fluorescein

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