Preparation of Polysaccharide-Based Microspheres by a Water-in-Oil Emulsion Solvent Diffusion Method for Drug Carriers

Abstract EN

Polysaccharide-based microspheres of chitosan, starch, and alginate were prepared by the water-in-oil emulsion solvent diffusion method for use as drug carriers.

Blue dextran was used as a water-soluble biomacromolecular drug model.

Scanning electron microscopy showed sizes of the resultant microspheres that were approximately 100 μm or less.

They were spherical in shape with a rough surface and good dispersibility.

Microsphere matrices were shown as a sponge.

Drug loading efficiencies of all the microspheres were higher than 80%, which suggested that this method has potential to prepare polysaccharide-based microspheres containing a biomacromolecular drug model for drug delivery applications.