scholarly journals Extraction of SO3H-containing iron (III) complexes with quaternary ammonium ions

1968 ◽  
Vol 17 (5) ◽  
pp. 616-621 ◽  
Author(s):  
Hitoshi KOHARA ◽  
Nobuhiko ISHIBASHI ◽  
Akira YOSHIDA
Keyword(s):  
Quaternary Ammonium ◽  
Ammonium Ions ◽  
Quaternary Ammonium Ions

Pseudopodium Induction by the Action of Quaternary Ammonium Ions on Amoeba Proteus

1969 ◽  
Vol 4 (1) ◽  
pp. 17-24
Author(s):  
J. E. BREWER ◽  
L. G. E. BELL
Keyword(s):  
Cell Membrane ◽  
Cell Surface ◽  
Quaternary Ammonium ◽  
Amoeba Proteus ◽  
Carboxyl Groups ◽  
Ammonium Ions ◽  
Quaternary Nitrogen ◽  
Quaternary Ammonium Ions ◽  
Ammonium Compounds ◽  
Long Chain

Some aliphatic long-chain quaternary ammonium compounds and choline derivatives have been examined for their ability to induce pseudopodia from Amoeba proteus. The reaction involved in pseudopodium induction is believed to be between the quaternary nitrogen cations and polysaccharides on the cell surface. Not all of the carboxyl groups of the polysaccharide are involved in this reaction. The mechanism of pseudopodium induction is discussed in terms of changes in the surface charge and the permeability of the cell membrane.

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