نتایج جستجو برای: permeable membrane

تعداد نتایج: 397599  

Journal: :Pharmaceutical Research 2021

A Correction to this paper has been published: https://doi.org/10.1007/s11095-021-03033-9

Journal: :Journal of embryology and experimental morphology 1963
V KRESPI J DAVIES

T H E chemical composition of the foetal fluids in the rabbit was studied by Davies & Routh (1957). These investigators showed that the amniotic and exocoelomic fluids resembled extracellular fluid in their ionic composition whereas the allantoic fluid more closely resembled intracellular fluid. These findings were confirmed by Dickerson & McCance (1957). An experimental study of the trans-memb...

Journal: :Angewandte Chemie 2021

Using oxygen permeable membranes (OPMs) to upgrade low-purity hydrogen is a promising concept for high-purity H2 production. At high temperatures, water dissociates into and oxygen. The permeates through OPM oxidizes in waste stream on the other side of membrane. Pure can be obtained water-splitting after condensation. However, existing Co- Fe-based OPMs are chemically instable as result over-r...

Journal: :Journal of lipid research 1989
G Grubauer P M Elias K R Feingold

Previous studies have demonstrated that perturbations in barrier function stimulate epidermal lipid synthesis and that this increase can be prevented by occlusive membranes. These observations suggest that epidermal lipid synthesis might be related to barrier function and raised the question whether transcutaneous water flux might regulate epidermal lipogenesis. In the present study we first ab...

Journal: :The Journal of General Physiology 1989
F S Cohen W D Niles M H Akabas

Phospholipid vesicles fuse with a planar membrane when they are osmotically swollen. Channels in the vesicle membrane are required for swelling to occur when the vesicle-containing compartment is made hyperosmotic by adding a solute (termed an osmoticant). We have studied fusion using two different channels, porin, a highly permeable channel, and nystatin, a much less permeable channel. We repo...

B. Farokhi, M. Rezaei S. M. Hosseini Z. Kiamehr

In this study, polyethersulfone based nanofiltration membranes were modified by air plasma generated through dielectric barrier discharge to increase the membrane hydrophilicity aiming to improve the separation and antifouling characteristics. The effect of plasma time on the physico-chemical and separation properties of membrane was investigated. The PES nanofiltration membranes were fabricate...

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