Pressure-dependent diffusion coefficients and Haven ratios in cation-conducting glasses

Article Abstract:

The tracer diffusion of [super 22]Na in sodium borate glass and of Rb in a rubidium borate glass is studied as functions of hydrostatic pressures to explore the atomistic mechanisms of ionic motion in glasses. The decrease in Haven ratio, which is found to be larger for Rb ions than Na ions, is attributed to the affect of pressure on the topology of the conduction pathways for migrating vacant cation sites.

Primary Metal Manufacturing, PRIMARY METAL INDUSTRIES, Amorphous Metals, Diffusion, Diffusion (Physics), Metallic glasses, Borates

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Comment on the misunderstanding of the BSA-SDS complex model: Concern about publications of an impractical model

Article Abstract:

A comment on the misunderstanding of the BSA-SDS complex model, which has ignored the fact that the polypeptide of intact BSA cannot behave as flexibly as they assume, is presented. A concern is expressed regarding the fact that the misunderstanding may misrepresent the essential nature of protein-surfactant interaction and may cause other misunderstandings.

Biological Product (except Diagnostic) Manufacturing, Biological products exc. diagnostic, Blood Albumin, Analysis, Stoichiometry, Serum albumin

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Quarter-salt formation defining the anomalous temperature dependence of the aqueous solubility of sodium monododecyl phosphate

Article Abstract:

Aqueous solutions of monosodium monododecyl phosphate exhibit an anomalous solubility-temperature relationship showing three characteristic regions. The solid phases coexisting with the surfactants in the three regions are identified by titration analysis, scanning calorimetry, X-ray crystallography, IR spectroscopy, and polarization microscopy.

Phosphates, Carboxylic acids, Solubility

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