Spectroturbidimetry of liposome suspensions

Spectroturbidimetric method of the determination of the average size and th ickness of the shell in polydisperse suspensions of liposome particles was discussed. The method is based on measuring the wave exponent of suspension (the logarithmic slope of turbidity spectrum) and specific turbidity (turb idity per unit mass concentration of dispersed substance). The solution of inverse problem was performed using the exact calculation of the characteri stics of light scattering for polydisperse spherical bilayer particles with allowance for spectral dependence of optical constants. Practical realizat ion of this method is illustrated by the experimental determinations of the structural parameters of liposomes prepared from egg lecithin.