高等学校化学学报 ›› 2025, Vol. 46 ›› Issue (1): 20240156.doi: 10.7503/cjcu20240156

• 研究论文 • 上一篇    下一篇

Fe3+掺杂的聚氨基吡咯纳米粒子用于原位乳腺癌的磁共振成像和光热治疗

朱宣祺1,2, 崔丽影1, 赵欣宇1, 姜玲1, 张雪1()   

  1. 1.吉林农业大学资源与环境学院, 长春 130118
    2.吉林大学化学学院, 长春 130012
  • 收稿日期:2024-04-01 出版日期:2025-01-10 发布日期:2024-05-27
  • 通讯作者: 张雪 E-mail:zxue1987@163.com
  • 基金资助:
    国家自然科学基金(51603084)

Fe3+-doped Polyaminopyrrole Nanoparticles for in situ Magnetic Resonance Imaging and Photothermal Therapy of Breast Cancer

ZHU Xuanqi1,2, CUI Liying1, ZHAO Xinyu1, JIANG Ling1, ZHANG Xue1()   

  1. 1.College of Resources and Environment,Jilin Agricultural University,Changchun 130118,China
    2.College of Chemistry,Jilin University,Changchun 130012,China
  • Received:2024-04-01 Online:2025-01-10 Published:2024-05-27
  • Contact: ZHANG Xue E-mail:zxue1987@163.com
  • Supported by:
    the National Natural Science Foundation of China(51603084)

摘要:

利用铁离子诱发的氨基吡咯氧化聚合反应及铁离子与聚氨基吡咯间的配位作用制备了尺寸均一的 铁离子掺杂聚氨基吡咯纳米粒子(Fe/Ppy-NH2 NPs). Fe/Ppy-NH2 NPs的胶体稳定性良好, 其中铁离子的质量分数高达17.4%. 铁离子在Fe/Ppy-NH2 NPs中的大量掺杂, 一方面, 能够增强其在近红外光区的消光能力, Fe/Ppy-NH2 NPs的光热转化效率高达37.9%, 是一种良好的光热试剂, 能够实现对肿瘤的光热治疗; 另一方面, 铁离子3d轨道中存在的单电子能够降低纵向弛豫时间, Fe/Ppy-NH2 NPs能够作为T1加权的磁共振成像造影剂, 实现对肿瘤的定位. Fe/Ppy-NH2 NPs在对原位乳腺癌的磁共振成像和光热治疗中展现了良好的效果.

关键词: 聚氨基吡咯, Fe3+掺杂, 磁共振成像, 光热治疗

Abstract:

Fe3+-doped polyaminopyrrole nanoparticles(Fe/Ppy-NH2 NPs) with uniform size are prepared by Fe3+- induced oxidative polymerization of aminopyrrole and the coordination between Fe3+ and polyaminopyrrole. The colloidal stability of Fe/Ppy-NH2 NPs is good, and the mass fraction of Fe3+ is as high as 17.4%. On the one hand, the large amount of Fe3+ doping in Fe/Ppy-NH2 NPs can enhance the extinction ability in near infrared region, and the photothermal conversion efficiency of is 37.9%, which showing that Fe/Ppy-NH2 NPs is a good photothermal reagent for the photothermal therapy of tumors. On the other hand, the presence of single electron in the 3d orbit of Fe3+ can reduce the longitudinal relaxation time, Fe/Ppy-NH2 NPs are able to act as T1-weighted magnetic resonance imaging (MRI) contrast agents for tumor localization. In conclusion, Fe/Ppy-NH2 NPs have shown good effects in in-situ MRI and photothermal therapy of breast cancer.

Key words: Polyaminopyrrole, Fe3+-doping, Magnetic resonance imaging, Photothermal therapy

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