Depletion of VOC in wastewater by vacuum membrane distillation using a dual-layer membrane: mechanism of mass transfer and selectivity

Mechanism of the organic selectivity and mass transfer resistance of the dual-layer membrane in vacuum membrane distillation.

Modelling quantum black holes

Novel bound states are obtained for manifolds with singular potentials. These singular potentials require proper boundary conditions across boundaries. The number of bound states matches nicely with what we would expect for black holes. Also they serve to model membrane mechanism for the black hole horizons in simpler contexts. The singular potentials can also mimic expanding boundaries elegantly, thereby obtaining appropriately tuned radiation rates.

Preparation, Structural and Electrochemical Properties of PVC Based Magnesium Molybdate Ion-Exchange Composite Membrane for Desalination of Food Industry Waste Water

The inorganic-organic hybrid composite membranes have played a rocking role for separation, concentration, purification and clarification of food industry wastewater. The separation of wastewater produced from post-treatment part of food industry processing using PVC based magnesium molybdate (MM) composite membrane was studied in this paper. The physicochemical and electrochemical studies of composite membrane shows better results from previously reported membranes. In this study, the transport number, mobility ratio and surface charge density of composite membrane play a dominant role for understanding the membrane mechanism and these parameters depend on the concentration of various univalent electrolytes.

Exploring the Membrane Mechanism of the Bioactive Peptaibol Ampullosporin A Using Lipid Monolayers and Supported Biomimetic Membranes

Ampullosporin A is an antimicrobial, neuroleptic peptaibol, the behavior of which was investigated in different membrane mimetic environments made of egg yolk L-α-phosphatidylcholine. In monolayers, the peptaibol adopted a mixed α/310-helical structure with an in-plane orientation. The binding step was followed by the peptide insertion into the lipid monolayer core. The relevance of the inner lipid leaflet nature was studied by comparing ampullosporin binding on a hybrid bilayer, in which this leaflet was a rigid alkane layer, and on supported fluid lipid bilayers. The membrane binding was examined by surface plasmon resonance spectroscopy and the effect on lipid dynamics was explored using fluorescence recovery after photobleaching. In the absence of voltage and at low concentration, ampullosporin A substantially adsorbed onto lipid surfaces and its interaction with biomimetic models was strongly modified depending on the inner leaflet structure. At high concentration, ampullosporin A addition led to the lipid bilayers disruption.