Glucose osmotic coefficient

Glucose and ethanol have osmotic coefficients of 1.00, whereas the (f) for sodium chloride is 0.93 at the concentrations found in serum—thus the derivation of 1.86 X Na" " (mmol) in the formula to calculate plasma osmolality (NaCl potentially contributes 2 osmotically active particles times... 

Fig. 2 Osmotic coefficient of aqueous solutions of a polyelectrolyte from isopiestic measurements at25°C[32, 35 37] open tnang/es NaPVAS, M 2.5 x open diamonds NaCMC,M 2.5 X 10, DS 0.95 open squares NaPP, M 6.1 x 10 open circ/es-NaPES, Af 1 x 10. degree of substitution (carboxymethyl groups per glucose unit)...

A is the surface area of a globule, R is the gas constant, T is the absolute temperature, g and c are the osmotic pressure coefficient and concentration of glucose, and subscripts 1 and 2 refer to the suspending fluid side and the compartment side of the oil layer. The water permeation coefficient of oil layer P0 is defined from "Equation 7", as follows ... 

Figure 4. Adnesion energy (erg/cm ) for SUPC biiayers in 0.1 M salt (PBS) plus dextran polymers. Number average polymer indices - Np (number of glucose monomers). Solid and dasned curves - predictions from mean field theory with first and second virial coefficients from osmotic pressure measurements (14).

In 1981, Helfrich [7] studied the effect of the external osmotic pressure on egg yolk phosphatidylcholine (EPC) giant vesicles by adding 15 mM of salt or glucose in the external medium of the vesicles. The vesicle radius appears to decrease linearly with time according to the law d /dt = -aPAc, where P is the membrane permeability coefficient to water, a, is the water molar volume, and Ac, the difference of molar concentrations. The water permeability coefficient for EPC bilayers was found to be 41 pms . ... 

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