将卵磷脂(phosphatidylcholine,PC)及胆固醇(cholesterol,Chol)以3 ∶ 1比溶于乙醚中,旋转蒸发除去乙醚,加2ml含0.135mol Na Cl,0.01MHEPES,p H6.7的PBS,超声振动30秒,分装冻干,4℃保存,声振法制备含C3F8氟碳气体的脂质体微泡。自制脂质体微泡的理化及生物性能:光镜下脂质体微泡平均直径3.021 μ m,库尔特计数微泡平均浓度:2.046 × 1011/ml,平均直径2.644 μ m(图15.4,图15 ﹒。图15.9超声介导微 ......