concentration gradient


Also found in: Thesaurus, Medical, Financial, Encyclopedia, Wikipedia.
Related to concentration gradient: active transport, Facilitated diffusion

concentration gradient

n.
The graduated difference in concentration of a solute per unit distance through a solution.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.concentration gradient - a gradient in concentration of a solute as a function of distance through a solution; "the movement of a solute down its concentration gradient is called diffusion"
gradient - a graded change in the magnitude of some physical quantity or dimension
References in periodicals archive ?
Despite the presence of these mentioned parameters, none are effective in distinguishing the types of ascitic fluid but the serum-ascites albumin concentration gradient (SAAG) has been declared superior, in comparison with the exudatetransudate concept in distinguishing by several studies.
They reported that the mean basal-apical concentration gradient was calculated approximately as 17,000 by the finite element computer model (10).
Because of the existence of concentration gradient, [Ca.sup.2+] and O[H.sup.-] diffuse into the soaking solution through the corrosion layer from the inner concrete.
The molecules of water flow along the surface according to the concentration gradient, but they don't get to the surface necessarily because of a concentration gradient.
There are two key factors: the binding forces between the water and plastic molecules and the vapour pressure differential between the pressure at the surface of the plastic and the partial pressure of water vapour in the air; this is also called a concentration gradient.
These migrate, following the local concentration gradient from the rubber matrix to the surface, and cover the same with a possible monomolecular layer.
Then use DMSO to prepare it to the following sample solutions with five different concentration gradient: 10, 50, 100, 500, 1000 ug mL-1.
In the fructose concentration gradient test, 10%, 8%, 6%, 4%, and 2% fructose solutions were given for 2 h (Figure 2).
ELISA results suggest that the level of sCD137 increases with the CM concentration gradient but shows no difference at different time points (Figures 3(b), 3(c), and 3(d)).
Because of the C[O.sub.2] concentration gradient in the gas and liquid phases, C[O.sub.2] transfers from the gas phase to liquid phases through the membrane pores and continues to react with the absorbent.
(i) water diffusion inside DDS due to water concentration gradient between release environment and DDS;

Full browser ?