scholarly journals Collagen intrafibrillar mineralization as a result of the balance between osmotic equilibrium and electroneutrality

2016 ◽  
Vol 16 (3) ◽  
pp. 370-378 ◽  
Author(s):  
Li-na Niu ◽  
Sang Eun Jee ◽  
Kai Jiao ◽  
Lige Tonggu ◽  
Mo Li ◽  
...  
Keyword(s):  
Osmotic Equilibrium

OSMOTIC EQUILIBRIUM AND OVERTHRUST FAULTING

1965 ◽  
Vol 76 (12) ◽  
pp. 1379 ◽  
Author(s):  
BRUCE B. HANSHAW ◽  
E-AN ZEN
Keyword(s):  
Osmotic Equilibrium

scholarly journals THE KINETICS OF EXOSMOSIS OF WATER FROM LIVING CELLS

1927 ◽  
Vol 10 (5) ◽  
pp. 659-664 ◽  
Author(s):  
Morton McCutcheon ◽  
Baldwin Lucke
Keyword(s):  
Osmotic Pressure ◽  
Salt Concentration ◽  
Driving Force ◽  
Temperature Characteristic ◽  
Living Cells ◽  
Velocity Constant ◽  
Osmotic Equilibrium ◽  
Kinetics Of

1. The rate of exosmosis of water was studied in unfertilized Arbacia eggs, in order to bring out possible differences between the kinetics of exosmosis and endosmosis. 2. Exosmosis, like endosmosis, is found to follow the equation See PDF for Equation, in which a is the total volume of water that will leave the cell before osmotic equilibrium is attained, x is the volume that has already left the cell at time t, and k is the velocity constant. 3. The velocity constants of the two processes are equal, provided the salt concentration of the medium is the same. 4. The temperature characteristic of exosmosis, as of endomosis, is high. 5. It is concluded that the kinetics of exosmosis and endosmosis of water in these cells are identical, the only difference in the processes being in the direction of the driving force of osmotic pressure.

Diffusion osmotic equilibrium

1960 ◽  
Vol 43 ◽  
pp. 145-151 ◽  
Author(s):  
Alfred Polson
Keyword(s):  
Osmotic Equilibrium

Disturbances of Osmotic Equilibrium

2008 ◽  
pp. 440-440
Author(s):  
K.V. Das ◽  
R. Visweswaran
Keyword(s):  
Osmotic Equilibrium

scholarly journals PERMEABILITY PROPERTIES OF ERYTHROCYTE GHOSTS

1952 ◽  
Vol 35 (5) ◽  
pp. 669-701 ◽  
Author(s):  
Torsten Teorell
Keyword(s):  
Total Concentration ◽  
Transport Processes ◽  
Second Phase ◽  
Erythrocyte Ghosts ◽  
Ghost Cell ◽  
Osmotic Equilibrium ◽  
Ghost Cells ◽  
Other Substances ◽  
Effects Of Ph ◽  
Two Stages

1. Erythrocyte ghosts from human blood were produced by gentle water hemolysis. The ghost-containing hemolysate (about 20 mN) was added to media of different composition (KCl, NaCl, glucose, sucrose, etc.) and varying concentration ranging from 8 to 840 mN. The volume changes of the ghost cells were followed by a light absorption method. The potassium and sodium concentrations were also analyzed in some representative cases. 2. The ghosts shrank, or swelled, in two stages. An initial phase with a momentary expulsion, or uptake, of water leading to an osmotic equilibrium, was followed by a second phase in which a slow swelling or shrinking proceeded toward a final constant volume. 3. The ghosts were semipermeable in the sense that water always passed rapidly in either direction so as to maintain isotonicity with the external medium. The relation between ghost cell volumes (V) and the total concentration (Ce) of the suspension medium can be expressed by a modified van't Hoff-Mariotte law: (Ce + a)(V – b) = constant. Here a is a term correcting for an internal pressure and b is the non-solvent volume of the ghost cells. This means that the ghosts behave as perfect osmometers. 4. On the other hand appreciable concentration differences of the K and Na ions could be maintained across the intact ghost cell membranes for long periods. Whether this phenomenon is due simply to very low cation permeability or to active transport processes cannot be decided, although the first assumption appears more probable. 5. When the ghosts were treated with small concentrations of a lytic substance like Na oleate, the alkali ion transfer was greatly increased. This seems to be a simple exchange diffusion process with simultaneous, continued maintenance of osmotic equilibrium (= the second phase). A simplified theory is also given for the kinetics of the volume variations and ion exchange during the second phase (cf. the Appendix). 6. Miscellaneous observations on the effects of pH, and of some other substances are discussed. Some shape transformations of the ghost cells are also described.

1109 On the stress in an ideal solution in osmotic equilibrium in a micro vessel(1)

2007 ◽  
Vol 2007 (0) ◽  
pp. _1109-a_
Author(s):  
Tomoaki ITANO ◽  
Takeshi AKINAGA ◽  
Masako SEKI
Keyword(s):  
Ideal Solution ◽  
Osmotic Equilibrium

scholarly journals Molecular Buoyancy and Osmotic Equilibrium

1972 ◽  
Vol 69 (2) ◽  
pp. 301-302 ◽  
Author(s):  
M. Perez ◽  
P. F. Scholander
Keyword(s):  
Osmotic Equilibrium
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