[Thermogravimetric analysis of the aqueous dispersion of egg lecithin and Na-DNA].

Thermogravimetric studies of egg yolk lecithin water dispersion were carried out under conditions similar to those previously used in DSC studies of model biomembranes. For comparison, water dispersion of Na-DNA from calf thymus was studied in a parallel series. In both cases several distinct states of associated water were observed.

[Analysis of temperature and radiation-induced effects in model and natural biomembranes using UV-spectroscopy method].

Effects of low-dose gamma-irradiation (up to 1 R) upon UV absorption spectra of water dispersions of egg yolk lecithin (1:1) and samples of rat liver homogenate were studied. Clearly detectable changes could be observed in the 200-220 nm range already under dose loads of several mGy. Radiation sensitivity was shown to be essentially temperature dependent, being the highest at physiological temperatures.