Results 281 to 290 of about 9,017,426 (338)

Permeability of the Cell-to-Cell Membrane Channels in Mammalian Cell Junction

Science, 1979
The channels in the junctions of various mammalian cell types—primary cultures and lines—were probed with a series of linear fluorescent amino acid and peptide molecules of different size and charge. Permeability is limited by probe size and electronegativity, these two factors apparently being related reciprocally.
J, Flagg-Newton, I, Simpson, W R, Loewenstein   +2 more
openaire   +2 more sources

Recent Advances of Cell Membrane‐Coated Nanomaterials for Biomedical Applications

Advanced Functional Materials, 2020
Surface modification of nanomaterials is essential for their biomedical applications owing to their passive immune clearance and damage to reticuloendothelial systems. Recently, a cell membrane‐coating technology has been proposed as an ideal approach to
Wen-Long Liu, Mei-Zhen Zou, Si-Yong Qin, Yin-Jia Cheng, Yi-Han Ma, Yun-Xia Sun, Xian-Zheng Zhang   +6 more
semanticscholar   +1 more source

Membrane permeability equations and their solutions for red cells

The Journal of Membrane Biology, 1977
The mathematical equations for the transport of nonelectrolytes across cell membranes are critically examined and cast in forms suitable for solution which involve fewer approximations than has heretofore been commonly done. For the use of red cells, the equations are developed to include the effect of the variation in apparent nonosmotic water owing ...
J H, Milgram, A K, Solomon
openaire   +2 more sources

Asymmetrically Permeable Membrane Channels in Cell Junction

Science, 1980
Asymmetric membrane junctions were formed in culture by pairing two cell types which, in their respective homologous junctions, have cell-cell channels of different permselectivities. The channels in the asymmetric junction, presumably made of unequal channel precursors, displayed directional permselectivity; fluorescent labeled glutamic acid (700 ...
Flagg, newton J, Loewenstein, W R
openaire   +2 more sources

Membrane permeability of isolated lung cells to nonelectrolytes

American Journal of Physiology-Cell Physiology, 1977
Mixtures of viable endothelial and epithelial cells were separated by enzymatic digestion from rabbit lung and recovered by centrifugation. The cells were mixed with an extracellular marker and packed by centrifugation into small-diameter polyethylene tubing and pulsed with tritiated water and 14C-labeled alcohols.
R A, Garrick, W R, Redwood
openaire   +2 more sources

Cell membrane permeability in hypertension.

Clinical physiology and biochemistry, 1989
A great deal of evidence has been presented which suggests that a generalized increase in cell membrane permeability to various ions is a fundamental defect associated with hypertension. In addition, some of the evidence is supportive of a central role of this defect in the pathogenesis of hypertension.
P B, Furspan, D F, Bohr
openaire   +1 more source

Cell Membrane Permeability and Hypertension

1984
A great deal of evidence has been presented which suggests that a generalized increase in cell membrane permeability to various ions is a fundamental defect associated with hypertension. In addition, some of the evidence is supportive of a central role of this defect in the pathogenesis of hypertension.
openaire   +1 more source

The Nanopore Connection to Cell Membrane Unitary Permeability

Traffic, 2005
Artificial nanopores have recently emerged as versatile tools for analyzing and sorting single molecules at high speed. However, the biological cell has already developed a large set of sophisticated protein nanopores that are able to selectively translocate all types of molecules through membranes.
openaire   +2 more sources

The Cell Membrane and Ionic Permeability

1991
All living cells are surrounded by a cell membrane which separates the cellular contents from the outside medium. The organized contents of the cell, including the nucleus and such organelles as the mitochondria, Golgi apparatus, lysosomes, the endoplasmic reticulum, as well as the components of the cytoskeleton, exist in a watery medium — the ...
openaire   +1 more source

The Permeability of Plant Cell Membrane to Sugar

Nature, 1929
THIS communication deals with a glucose effect on the permeability of cell membranes to sugar molecules as studied by the intensity of respiration when leaves of Artocarpus Integrifolia were injected with varying concentrations of glucose solution.
R. S. INAMDAR, K. V. VARADPANDE
openaire   +1 more source