Capillary walls are formed by a single layer of endothelial cells surrounded by a basement membrane. They are devoid of surrounding intima or smooth muscle, having a wall thickness of 0.5 μm. The vessel diameter of 5–9 μm is just large enough to facilitate the passage of erythrocytes, al...
Their walls are composed of a single layer of cells which allows molecules such as oxygen, water and lipids to pass through them by diffusion and enter the tissues. Waste products such as carbon dioxide and urea can diffuse back into the blood to be carried away for removal from the body....
composed ofType IV collagen,proteoglycans, theadhesion proteinslamininandfibronectin, and an uncertain number of otherglycoproteins, some of which are likely to be unique to the brain capillary.28Aside from the basement membrane's role in the maintenance and compartmentalization of tissue architecture, ...
semipermeable membrane one permitting passage through it of some but not all substances. serous membrane the membrane lining the walls of the body cavities and enclosing the contained organs; it consists of mesothelium lying upon a connective tissue layer and it secretes a watery fluid. synovial ...
1. A capillary tube for analytical separations of macromolecules, said capillary tube comprising: a passage defined by capillary walls comprising fused silica; and a multilayer positioned within said passage adjacent said walls, wherein said multilayer comprises a plurality of polyelectrolyte layers; and...
Endothelial fenestrae are transcellular pores that pierce the capillary walls in endocrine glands such as the pituitary. The fenestrae are covered with a thin fibrous diaphragm consisting of the plasmalemma vesicle-associated protein (PLVAP) that clusters to form sieve plates. The basal surface of ...
are thin-walled vessels mainly composed of endothelial cells. They function in receiving capillary blood containing tissue waste products and destining them to be processed by other organs. Also, post-capillary venules facilitate leukocyte diapedesis and plasma protein leakage during times of inflammation...
Capillary tubes are often used as a storage or delivery device for samples or reagents due to their smooth inner walls and excellentsurface properties. By attaching a polyimide-coated glass capillary to a ceramic plate, it can be used as an actuator to manipulate droplets in the capillary. ...
a, Transmission electron micrographs of alveolar walls from adult mouse lungs, pseudocoloured to highlight cells and connective tissue (extracellular matrix (ECM) or fibres). Apln-creER; Rosa26-tdTomato (to label aerocytes) or Aplnr-creER; Rosa26-tdTomato (to label gCap cells) lungs were imm...
The results showed that protoplasts without cell walls had apparently stronger interactions with the ssDNA library than did bacteria with intact cell walls. Thus, the cell surface situation determined the binding affinity with ssDNA, which should be considered in the selection of whole cell aptamers ...