Bubble-free oxygenation by means of hydrophobic porous membranes
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The technique of template synthesis by electrodeposition in the parallel pores of membranes is enhanced with the alternated deposition of different metals. Filled polycarbonate or alumite membranes constitute regular arrays of embedded wires with diameters ...
A review with many refs. Ammonia has been reported to be toxic and inhibitory for mammalian cell cultures for many years. Redn. of growth rates and maximal cell densities in batch cultures, changes in metabolic rates, perturbation of protein processing and ...
The binding characteristics of a monoiodinated form of vasoactive intestinal peptide (M-[125I]VIP) to the membranes of astrocytes, intraparenchymal microvessels and synaptosomes were analyzed in mouse cerebral cortex. Binding to astrocytes, studied in prim ...
To overcome ammonia inhibition in animal cell culture, a method utilizing porous polytetrafluoroethylene membranes with an assocd. pH gradient was investigated. Model expts. without cells were carried out in three different reactor configurations suitable ...
Insertion of some protein toxins into membranes proceeds through an unfolding step. The unfolding trigger can be the low pH in endosomes, exposure to body temperature, reduction of disulphide bonds or proteolytic cleavage occurring at the membrane surface. ...
