首页> 外文期刊>RSC Advances >Magnetically targeted nanoparticles for imaging-guided photothermal therapy of cancer
【24h】

Magnetically targeted nanoparticles for imaging-guided photothermal therapy of cancer

机译:用于显影引导的癌症的磁性靶向纳米粒子

获取原文
获取原文并翻译 | 示例
           

摘要

Over the past several decades, nanocarriers have constituted a vital research area for accurate tumor therapy. Herein, magnetically targeted nanoparticles (IRFes) for photothermal therapy were generated by integrating IR780, a molecule with strong emission and absorption in the NIR spectrum and the ability to produce heat after laser irradiation, with Fe3O4 nanoparticles (NPs). These IRFes were guided to the tumor site by the application of an external magnetic field. In particular, the strong NIR absorption of IR780 was used for NIRF imaging, and we also demonstrated effective magnetic targeting for the photothermal ablation of tumors. In vitro cell viability and in vivo antitumor experiments showed that these IRFes can ablate 4T1 cells or transplanted 4T1 cell tumors when exposed to 808 nm laser irradiation and a magnetic field. In vivo experiments showed that IRFes only act on tumors, do not damage other organs and can be used to image tumors. These results demonstrate the enormous potential of local photothermal therapy for cancer under the guidance of external magnetic fields and reveal the prospect for the use of multifunctional nanoparticles in tumor therapy.
机译:在过去的几十年中,纳米载波已经构成了一种重要的研究区域,用于准确肿瘤治疗。这里,通过整合IR780,在NIR光谱中积分具有强发射和吸收的分子和激光照射后产生热量的能力来产生用于光热疗法的磁性靶向纳米颗粒(IRFE),并用Fe3O4纳米颗粒(NPS)。通过施加外部磁场,将这些IRFES引导至肿瘤部位。特别地,IR780的强烈的NIR吸收用于NIRF成像,并且我们还证明了用于肿瘤的光热消融的有效磁性靶向。体外细胞活力和体内抗肿瘤实验表明,当暴露于808nm激光照射和磁场时,这些IRFE可以烧蚀4T1细胞或移植的4T1细胞肿瘤。在体内实验表明,IRFES仅对肿瘤作用,不会损坏其他器官,可用于图像肿瘤。这些结果表明,在外部磁场的指导下,癌症对癌症的巨大潜力,并揭示了在肿瘤治疗中使用多功能纳米颗粒的前景。

著录项

  • 来源
    《RSC Advances》 |2019年第65期|共11页
  • 作者

  • 作者单位
  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号