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This work is concerned with a novel way of studying the basic structural and transport properties of porous membranes. Formulae have been derived for: the total number (N) of pores in the membrane; and mean square radius (r k ) of pores and for selective membranes: the mean square radius (r ka ) of pores impermeable to solutes and mean square radius (r kb ) of permeable...
The effect of two series of amphiphilic quaternary ammonium salts on some properties of phospholipid membranes was studied. The compounds of one series, N-benzyl-N,N-dimethyl-N-alkyl ammonium bromides, exert a destructive effect on membranes and are treated as reference compounds. The compounds of the other series, N-(3,5-di-t-butyl-4-hydroxy)benzyl-N,N-dimethyl-N-alkyl ammonium bromides, are derivatives...
Purpose: Organic derivatives of lead and tin belong to a group of toxic substances commonly found in the environment and because of that they are intensively studied. However, presented data are usually concerned with their influence on biochemical processes occurring inside biological objects. The aim of the present work was to find whether there is interaction between organometals and model membranes...
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