Correlation between the charge of proteins in solution and in the gas phase investigated by protein charge ladders, capillary electrophoresis, and electrospray ionization mass spectrometry

Article Abstract:

Research was conducted to examine the charge ladders of bovine carbonic anhydrase III, hen egg-white lysozyme and bovine pancreatic trypsin inhibitor using capillary electrophoresis and on-line electrospray ionization mass spectrometry with solution conditions that maintain the native structure of the protein. Results demonstrate that each rung of the charge ladder consists of proteins with the same number of acetylated amino groups.

Usage, Proteins, Electrophoresis, Biopolymers, Mass spectrometry, Separation (Technology), Amino acids

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Modeling of menisci and capillary forces from the millimeter to the micrometer size range

Article Abstract:

Lateral capillary interactions between millimeter and sub-millimeter-sized objects floating at the interface between perfluorodecalin (PFD) and water are examined. Methods of modeling the contours of the menisci by a Finite Element Method (FEM) to measure contours experimentally and calculate energy of interactions between objects at a fluid/fluid interface are described.

Analysis, Finite element method, Aqueous solution reactions

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Mesoscale self-assembly: Capillary bonds and negative menisci

Article Abstract:

The self-assembly of hexagonal plates at the perfluordecalin and water interface is described.

Hexagons

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