Polyelectrolytes and Their Biological Interactions

摘要: Polyelectrolytes are water-soluble electrically charged polymers. Their properties determined by the interplay of electrical forces, Brownian motion macromolecular chain, and intermolecular Van der Waals forces. Charged polyacids or polybases stretched electrostatic as evidenced increase in solution viscosity, stretching polyelectrolyte gels. The field polyions is neutralized a dense atmosphere counter-ions. counter-ion attraction to expressed reduction osmotic activity polyion—the pressure being only 15 20 per cent ideal highly polyelectrolytes monovalent counter-ions, low 1 3 for polyvalent Since ionic slightly dependent on added molecular salt, salt mixtures approximately equal sum alone. Acidic basic interact electrostatically with precipitation at point polymeric electroneutrality. At higher concentrations interaction inhibited screening fixed charges. importance these interactions enzymatic processes discussed. double layer polarizable may be deduced from dielectric conductometric studies. polarizability leads strong dipole formation an field. These dipoles play role adsorption surfaces. final part paper devoted cell membranes gluing cells aggregates biocolloids.