方法以静电吸附法将抗VEGF抗体连接到脂质体造影剂微泡的表面；
Methods The anti-VEGF antibody was connected to the surface of liposome ultrasound contrast microbubbles by the electrostatic attraction way and its physical characteristics were detected.
按膜材料的不同，包膜微泡造影剂可分为白蛋白类、非离子表面活性剂类、脂质体类和多聚体类。
According to different membrane materials, Encapsulated microbubbles ultrasound contrast agent can be divided into several categories such as albumin, liposome, polymer.
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