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The invention belongs to the biomedical engineering field, in particular relating to a novel targeted microbubble contrast agent.
本发明属于生物医学工程领域，更具体地说，本发明涉及一种新型靶向微泡造影剂。
Objective To prepare an ultrasound microbubble contrast agent using PLLA-PEG-PLLA copolymer as the shell material, and test their acoustic characteristics in vitro.
目的用PLLA - PEG - plla共聚物为外壳材料制备微泡造影剂，建立体外声学性质测定装置和方法。
Resently years, researchers utilize biological effects generated by microbubble contrast agent combined ultrasound techniques to implement therapy of tumor by microbubble carrying drug and gene.
近几年，国内外学者利用超声联合微泡造影技术所产生的生物学效应，实现了微泡造影剂携载药物和基因对肿瘤的靶向治疗。
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