نتایج جستجو برای: aqueous environment
تعداد نتایج: 597591 فیلتر نتایج به سال:
In the present work, the procedures for the creation of self-assembled DNA nanostructures in aqueous and non-aqueous media are described. DNA-Surfactant complex formation renders the DNA soluble in organic solvents offering an exciting way to bridge the transition of DNA origami materials electronics applications. The DNA retains its structural features, and these unique geometries provide an i...
one of the most commonly used techniques to reduce the corrosion rate of rebar in concrete is addition substances named corrosion inhibitors into the concrete. corrosion inhibitor is chemical compounds that were added to concrete to prevent corrosion of steel in concrete. sodium nitrate is a type of anodic inhibitors that this study investigatesthe effect of this inhibitor on the properties of ...
Pyrylium-containing mesoporous materials have been used for the chromo-fluorogenic sensing of biogenic amines in an aqueous environment.
IF it is granted that the aqueous humour is formed by the active transfer of solutes and solvent from the plasma to the aqueous, it follows that the rates of transfer of the various solvent or solute species and the steady-state composition of the aqueous will depend upon the electrochemical potential difference (P.D.) across its boundaries with the plasma. Alterations of the electrochemical P....
We experimentally demonstrate the feasibility of an aqueous Paul trap using a proof-of-principle planar device. Radio frequency voltages are used to generate an alternating focusing/defocusing potential well in two orthogonal directions. Individual charged particles are dynamically confined into nanometer scale in space. Compared with conventional Paul traps working in frictionless vacuum, the ...
Membrane proteins reside in a highly asymmetric environment compared to their cytosolic counterparts which gives them unique properties. Rather than being in a homogeneous aqueous solvent, the "solvent" that surrounds membrane proteins consists of the aqueous region outside the membrane, the ionic region of the membrane surface and the oily region of the membrane interior. These differing diele...
PURPOSE The authors addressed three questions concerning the circadian rhythm of aqueous humor protein concentration in rabbits. First, is there an endogenous oscillator for this circadian rhythm? Second, does a circadian rhythm occur for individual aqueous humor protein components? Third, what is the role of ocular sympathetic nerves, which are more active in the dark phase, in this circadian ...
It has recently been shown that aqueous humor is able to obstruct flow through Nuclepore polycarbonate filters having flow dimensions similar to those found in the juxtacanalicular tissue (JCT). We undertook studies designed to identify the component(s) of aqueous humor responsible for this obstruction and to determine the mechanism of blockage. We conclude that aqueous humor contains two compo...
The penetration of rifampin into human aqueous humor was determined in 15 patients undergoing elective cataract surgery. Between 0.9 and 5.5 h after administration of a single 600-mg oral dose, concentrations ranged from 6.0 to 21.5 mg/liter in serum and from less than 0.2 to 1.3 mg/liter in aqueous humor.
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