Microspheres were prepared via double emulsion solvent evaporation using compound of poly(3-hydroxybutyrate)(PHB) and polyethylene glycol(PEG) as the matrix.

• 以聚3-羟基丁酸酯(PHB)和聚乙二醇(PEG)共混物为原料,采用复乳化-溶剂蒸发技术制备微球。