Complex coacervation of hyaluronic acid and chitosan: effects of pH, ionic strength, charge density, chain length and the charge ratio

Hyaluronic acid/chitosan interpolyelectrolyte complexes form the first example of coacervates from semiflexible polyelectrolytes. Interestingly, these coacervates form at charge ratios different than 1 : 1 and zeta potentials far away from zero.