摘要
超声已广泛应用于生物医学肿瘤的诊断和治疗。近年来微纳米技术的应用促进了基于超声的生物医学的发展,特别是在基于超声的药物传递和肿瘤治疗领域。超声波可以通过不同的机制激活纳米级给药系统,从而触发靶向肿瘤部位的按需释放药物。超声靶向微泡破坏(UTMD)技术不仅可以通过超声操作效应增加血管和细胞膜的通透性,还可以实现微泡原位转化为纳米颗粒,促进细胞吸收和治疗效果。此外,高强度聚焦超声(HIFU),或声动力治疗(SDT),被认为是最有前途和代表性的非侵入性癌症治疗方法之一。然而,由于其关键的处理效率问题,它们在处理过程中的应用仍受到限制。幸运的是,最近发展的微纳米技术为解决这些问题提供了机会,从而提高了癌症的治疗效果。本文综述和讨论了近年来用于超声生物医学的微纳米材料设计的最新进展。
关键词: 微/纳米技术、超声、药物释放、超声靶向微泡破坏(UTMD)、高强度聚焦超声(HIFU)、声动力治疗(SDT)
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