S.a.n.s. in lysozyme solutions

In this paper experimental results obtained by small angle neutron scattering technique applied to solutions of Lysozyme are presented. The system has been strudied by changing the concentration of the macromolecules and, at a fixed concentration, by changing the dielectric costant of the solvent (mixture of water and dioxane). The data were interpreted in terms of a phenomenological model for the structure factor $S(k)$ which works for neutron diffraction data as well as for optical diffraction measurements. A test of a model for the interaction energy between macromolecules, proposed by Frölich-Genzel, has been attempted