Techniques for the preparation and analysis of a liposomal formulation of lisomustine

Abstract

The optimal composition and production technique were identified for preparation of liposomal formulations of lisomustine. The stability of this formulation was increased by lyophilization of the liposomal dispersion using a cryoprotector, i.e., 10% sucrose solution. The lisomustine content in lysosomes was assayed by spectrophotometry at a wavelength of 230 nm. Uptake of lisomustine into freshly prepared liposomes amounted to 61.2 ± 0.4% and particle size was 170 ± 20 nm.