Multilayer emulsions are produced by forming layers around
an oil droplet (Fig. 5). Typically, a conventional emulsion is
made followed by addition of a polyelectrolyte of opposite
charge (e.g. polysaccharide or protein). The opposite charges
attract to one another, causing the polyelectrolyte to adsorb to
the droplet surface. This process can be repeated, again using the principle of electrostatic attraction to form additional layers