[EN] POLYMERIC NANOPARTICLES FOR ULTRASOUND IMAGING AND THERAPY<br/>[FR] NANOPARTICULES POLYMÈRES UTILISÉES POUR L'IMAGERIE ET LE TRAITEMENT PAR ULTRASONS
申请人:UNIV MICHIGAN
公开号:WO2013055791A1
公开(公告)日:2013-04-18
Provided herein are nanobubbles designed for use in ultrasound-mediated ablation of cancer cells. The nanobubbles undergo ultrasound-mediated cavitation at an ablation threshold which is significantly decreased, relative to standard ultrasound- mediated treatment of cancer cells. In exemplary embodiments, the nanobubbles comprise an amphiphilic ABC triblock copolymer, wherein block A comprises a hydrophilic polymer, block B comprises a crosslinking polymer, and block C comprises a hydrophobic copolymer comprising (i) methyl methacrylate (MMA) and (ii) a fluorinated monomer, wherein the fluorinated monomer is present in the hydrophobic copolymer of block C at 25 mole percent or less. Related treatment and diagnostic methods, as well as materials relating to the nanobubbles are provided herein. Methods of making a random copolymer are furthermore provided herein.
本文提供了设计用于超声介导癌细胞消融的纳米气泡。这些纳米气泡在消融阈值下经历超声介导的空化作用,相对于标准的超声介导癌细胞治疗,其消融阈值显著降低。在示范性实施例中,这些纳米气泡包括一种两性ABC三嵌段共聚物,其中嵌段A包括一个亲水性聚合物,嵌段B包括一个交联聚合物,而嵌段C包括一个亲脂性共聚物,包括(i) 甲基丙烯酸甲酯(MMA)和(ii) 一种氟化单体,其中氟化单体以25摩尔%或更低的比例存在于嵌段C的亲脂性共聚物中。此外,本文还提供了与纳米气泡相关的治疗和诊断方法,以及相关材料。此外,本文还提供了制备随机共聚物的方法。