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In an attempt to understand the possibility of applications of the fullerene-based systems for transporting various polar compounds like hexamethonium through the blood-brain barrier, we studied the influence of a series of derivatives of fullerene C60 in the form of salts with hexamethonium bis-anion, namely the adducts of fullerenols with 6-aminohexanoic acid (IEM-2197), and two bis-adduct malonic acid derivatives of fullerene with addents bound in two hemispheres (IEM-2143) and in equatorial positions (IEM-2144), on model membranes.