Effect of hydrostatic pressure on ADH induced osmotic water flow in toad bladder

1982 ◽  
Vol 393 (3) ◽  
pp. 243-247
Author(s):  
Bernard Rosenbaum ◽  
Gerard Lombardo ◽  
Vincent A. DiScala
Keyword(s):  
Hydrostatic Pressure ◽  
Water Flow ◽  
Toad Bladder ◽  
Osmotic Water ◽  
Effect Of Hydrostatic Pressure ◽  
Osmotic Water Flow

scholarly journals Reflection coefficients of homopore membranes: effect of molecular size and configuration.

1979 ◽  
Vol 73 (1) ◽  
pp. 49-60 ◽  
Author(s):  
J S Schultz ◽  
R Valentine ◽  
C Y Choi
Keyword(s):  
Hydrostatic Pressure ◽  
Pore Size ◽  
Osmotic Pressure ◽  
Water Flow ◽  
Molecular Size ◽  
Reflection Coefficients ◽  
Osmotic Water ◽  
Molecular Rigidity ◽  
Flow Through ◽  
Osmotic Water Flow

Osmotic water flow through membranes with uniform defined pores was measured for a variety of macromolecular solutes. Water flow increased linearly with applied hydrostatic pressure, allowing the effective osmotic pressure of the solutes to be estimated by extrapolation. Reflection coefficients for each solute-membrane combination were calculated and correlated with the ratio of solute size to pore size. For the same mean molecular size, proteins were found to have larger reflection coefficients than dextrans. Molecular rigidity may play a role in this difference in behavior.

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