Research progress on Pickering emulsions stabilized by natural biopolymers particles in drug delivery
Pickering emulsions are dispersed systems containing at least two immiscible liquid phases,which are stabilized by solid particles instead of traditional surfactants.Solid particles in Pickering emulsions can be adsorbed irreversibly at immiscible biphasic interfaces,and widely used in pharmaceutical and food industries due to their low dosage and high safety.Solid particles can be divided into inorganic particles,natural biopolymer particles and drug nanocrystalline particles,and among which natural polymer particles are widely used for drug delivery because of low toxicity and high stability.Therefore,the emulsions stabilized by natural biopolymer particles in drug delivery was summarized to provide reference for the application and development of biopolymer particle-stabilized Pickering emulsions in pharmacy.