(n.) The act of permeating, passing through, or spreading throughout, the pores or interstices of any substance.
Example Sentences:
(1) In both instances the permeation rates of proteins can be better correlated to hydrodynamic radii than to molecular weights.
(2) In anaerobiosis, at 25 mM sulphanilic acid, or with addition of p-toluene sulphonic acid only one regression line is obtained for the permeation in both directions.
(3) The calpains were allowed to autolyze to completion, and the autolysis products were separated and were characterized by using gel permeation chromatography, calpastatin affinity chromatography, and sequence analysis.
(4) At 5 micrometer and 2.5 mM sulphanilic acid under aerobic conditions, the regression lines for the permeation from lumen to blood pass almost through the origin, while the regression lines for the permeation from blood to lumen intersect the ordinate at a positive Y-value.
(5) The breakthrough time and permeation rate at steady-state were calculated as described in the ASTM standard test method.
(6) Insulin-like growth factor-binding proteins (IGFBPs) in rat serum, lymph, amniotic fluid and cerebrospinal fluid (CSF), and in rat cell-conditioned media were characterized using a combination of gel-permeation chromatography, Western immunoblots and Western-ligand analysis.
(7) Glycerol permeation and thus its osmotic action may be less in the soleus than in other muscles.
(8) Previous histological evidence of the uptake of these particles and their absorption across the gastrointestinal tract and passage via the mesentery lymph supply and lymph nodes to the liver and spleen was confirmed by analysis of tissues for the presence of polystyrene by gel permeation chromatography.
(9) 10% NNDEMT doubled the amount of PFA in the skin, increased fourfold the amount permeated across the skin, and increased the flux fivefold.
(10) Various methodological weaknesses permeate the relevant literature.
(11) Time courses for in vivo total mucosal uptake exhibited linearity over a wide variety of absorption rates after correction for the permeation by intact metal-chelate complex.
(12) Gel permeation chromatography of the CIT-agarose eluates revealed one protein peak that coincided with PDE activity at an elution position of 135,000 daltons.
(13) Phospholipase A2 has been purified from the venom of Horned viper (Cerastes cerastes) by gel permeation chromatography followed by reverse-phase HPLC.
(14) The buccal absorption characteristics and physicochemical properties of the beta-adrenoceptor blocking agents propranolol and atenolol have been investigated to evaluate their permeation properties across biological lipid membranes.
(15) The permeation enhancer STDHF increases mucosal permeability and reduces the average molecular weight of the insulin species.
(16) I argue that the energy profile in the permeation pathway of most biological channels should vary relatively smoothly with only a few localized energy barriers or wells.
(17) Channels containing a variety of viable cells permeated the rice bodies.
(18) Estrogen receptor from human breast cancer tissue and from normal human uterus was isolated and characterized by a combination of physical separation methods including ammonium sulfate precipitation, gel permeation chromatography, isoelectric focusing and gel electrophoresis.
(19) However, we did not examine the mechanisms by which the apparent high permeation of sodium chloride occurs.
(20) For the skins without stratum corneum, the permeation rates and permeation amounts of l-NG and dl-NG were higher than those for the intact skin (P less than 0.01), but no significant difference was seen between l-NG and dl-NG.
Porous
Definition:
(n.) Full of pores; having interstices in the skin or in the substance of the body; having spiracles or passages for fluids; permeable by liquids; as, a porous skin; porous wood.
Example Sentences:
(1) Recently reported unfavorable clinical results (i.e., a high incidence of pain) have led to the discontinuation of one trial of porous polyethylene.
(2) A porous structure, possibly involving a capsid and RNA complex, is envisioned.
(3) The commonly used line-to-line reaming technique was compared to an underreaming technique using both four-fifths and one-third porous-coated anatomic medullary locking (AML) implants.
(4) A novel type of ion exchanger was prepared by multipoint covalent binding of polystyrene chains onto the surface of porous silica followed by polymer-analogous modification of the bonded layer.
(5) On the buccal and lingual aspects of the implants, both the absolute lengths and CLF were significantly smaller for the porous-coated design.
(6) The usefulness of porous tarflen materials (tarflen--Polish name of teflon produced by Zakłady Azotowe in Tarnów, Poland) for this application was evaluated by comparing their properties with those of American porous teflon membranes used in membrane oxygenators.
(7) Epidermal growth factor added to cultures on solid or porous supports caused proliferation of epithelial-type cells to give a confluent monolayer but did not increase the expression of differentiated function.
(8) Porous polyethylene was thus better incorporated into the soft tissues than silicone rubber as long as the overlying soft tissues were not stressed by an oversized implant or inadequate soft tissue coverage.
(9) In earlier studies, we have shown that porous (60 micron internodal distance) PTFE grafts develop a complete endothelial layer 2 weeks after being implanted in baboons.
(10) The N supplements had no significant effects on rumen pH, concentrations of volatile fatty acids, their molar proportions or the disappearance of DM or N from porous synthetic-fibre bags.
(11) The authors conclude that a very open luminal surface structure, and a high wall porosity, are significant factors of graft patency in small diameter vascular prostheses made of a porous material.
(12) Monday’s budget request, an increase of 2.2% on last year, demonstrates a shift in Japan’s security emphasis from its northern maritime border with Russia to its long and porous southern reaches.
(13) This theoretical analysis is in excellent agreement with experimental data obtained with glucose oxidase immobilized on a porous collagen membrane.
(14) The porous implant volume sampled within 2.5 mm of underlying cortex contained 33.0% HA matrix and 35.7% bone.
(15) Interactions among the important constituents of the fibrocartilage matrix cause meniscal tissue to behave as a fiber-reinforced, porous, permeable composite material similar to articular cartilage, in which frictional drag caused by fluid flow governs its response to dynamic loading.
(16) These cases show that rigid fixation with good bony ingrowth does not guarantee the clinical success of a porous-coated uncemented femoral stem.
(17) The linear solvent strength model of Snyder was applied to describe fast protein separations on 2.1-micron non-porous, silica-based strong anion exchangers.
(18) The regional-development of heterotopic bone around the hip and the influence of postoperative prophylaxis with antiinflammatory drugs were studied in 66 patients treated with 74 noncemented, porous-coated total hip arthroplasties (THA) using the McFarland approach.
(19) A new process of plasma-spraying hydroxyapatite--an entirely biocompatible, bioceramic material--onto porous, titanium alloy components promotes bone ingrowth into the components resulting in implant fixation, which is superior to current methods of cemented or cementless fixation.
(20) The mechanical strength of the porous coating on the prosthetic surface should be improved and the prosthesis should be tested in limited clinical studies before cementless fixation can be recommended.