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2001[X]
1Author    TeresaE. Krai, Janina Kuczera, Stanislaw Przestalski, TeresaE. KraiRequires cookie*
 Title    Organometallics and Quaternary Ammonium Salts Affect Calcium Ion Desorption from Lecithin Liposome Membranes  
 Abstract    The objective of the present work was to compare the effects of groups o f tin and lead organometallic com pounds and their mixtures with amphiphilic quaternary ammonium salts (Q A S) on the process of calcium ion desorption from lecithin liposom e membranes, as de­ pendent on the properties of the hydrophilic and hydrophobic parts o f QAS. In the investiga­ tions the method of radioactive labels was applied. Synergism and antagonism in the action of both groups o f compounds were found. The effectiveness o f the cooperation depended more on chain length o f Q A S compounds than on the size and polarity of their hydrophobic parts. The most effective of all compounds studied was a the mixture of benzyldimethylam-monium chloride in a mixture with tripropyltin. Since the rate of calcium desorption proved to be a good measure o f efficacy of biologically active surfactants, it seem s that the conclu­ sions reached in this paper may be useful for choosing compounds which are able to decon­ taminate the environm ent polluted with heavy metals. 
  Reference    Z. Naturforsch. 56c, 395 (2001); received September 7 2000/January 26 2001 
  Published    2001 
  Keywords    Organometallics, Quaternary Ammonium Salts, Cooperative Effect 
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 TEI-XML for    default:Reihe_C/56/ZNC-2001-56c-0395.pdf 
 Identifier    ZNC-2001-56c-0395 
 Volume    56