The transport selectivity of different cations through cation exchange membranes (CEMs) could be estimated with the partitioning factor (Kji) and mobility ratio in membrane (uim/ujm), which turn can related to corresponding conductivity dimensional swelling data [Journal Membrane Science, 2020, 597, 117645]. This method has been validated two hydrocarbon polymer-based CEMs, obtained K+/Na+ equa...

A fabrication scheme to realize dense arrays of flexible, closed membranes with a small gap separating them from the substrate is presented. These membranes are the first step towards aquatic hair based flow sensors biomimicking fish lateral line. Electrodes are integrated underneath the membrane to avoid contact with the liquid. Arrays of membranes with a diameter of 100 μm, gap height of 3 μm...

drinking water has received considerable attention recently. however, misuse and mismanagement have resulted in a rapid and widespread decline in source-water quality and supply. water quality guidelines can be used to identify constituents of concern in water, to determine the levels to which the constituents of water must be treated for drinking purposes. membrane technology for the water cyc...

The usual Euclidean distance may be generalized to extended objects such as polymers or membranes. Here this distance is used for the first time as a cost function to align structures. We examined the alignment of extended strands to idealized beta-hairpins of various sizes using several cost functions, including RMSD, MRSD, and the minimal distance. We find that using minimal distance as a cos...

background several studies have been carried out to evaluate the effects of dialysis on o2 saturation. while the dialysis procedure may lead to hypoxia under different circumstances, there are few studies available on the effects of membrane type on o2 saturation in these patients. objectives this study was to appraise the effects of high and low flux membrane on pulse oxymetery in dialysis pat...

We prove the renormalizability of the generalized Edwards model for self-avoiding polymerized membranes. This is done by use of a short distance multilocal operator product expansion, which extends the methods of local field theories to a large class of models with non-local singular interactions. This ensures the existence of scaling laws for crumpled self-avoiding membranes, and validates the...

Gas transport properties of novel polybenzoxazole (PBO) – silica hybrid membranes with a para-substituted structure were investigated. The PBO prepared poly(o-hydroxy amide) as precursor polymer and tetraethoxysilane (TEOS) via thermal oxazolization sol-gel processes. neat treated at different temperatures showed higher fractional free volumes than corresponding meta-substituted reported previo...

We demonstrate the power of time-resolved small-angle neutron scattering experiments for the investigation of the structure and structural reorganizations of multilamellar photosynthetic membranes. In addition to briefly summarizing our results on thylakoid membranes isolated from higher plants and in unicellular organisms, we discuss the advantages and technical and methodological limitations ...

Introduction The first step in any fusion event involving biological membranes or liposomes is the close contact between the two lipid bilayers. Hefore the local collapse which gives rise to a single membrane from two membranes, the two phospholipid interfaces have to approach each other. Different interacting forces are involved. Van der Waals forces are attractive and can extend to distance o...