Chem. J. Chinese Universities ›› 2025, Vol. 46 ›› Issue (6): 20250094.doi: 10.7503/cjcu20250094

• Article • Previous Articles     Next Articles

Red-emissive Mitochondria-targeting Iron-doped Carbon Dots for Tumor Therapy via Peroxidase-mimicking Activity-induced Ferroptosis

XUE Xiaokuang1,2, LI Jian1,2, LIANG Huanyi1,2, WANG Yiying3(), GE Jiechao1,2()   

  1. 1.Technical Institute of Physics and Chemistry,Chinese Academy of Sciences,Beijing 100190,China
    2.School of Future Technology,University of Chinese Academy of Sciences,Beijing 100049,China
    3.Infection Prevention and Control Department of Tianjin People's Hospital,Tianjin 300122,China
  • Received:2025-03-31 Online:2025-06-10 Published:2025-04-28
  • Contact: WANG Yiying, GE Jiechao E-mail:therediceberg@163.com;jchge2010@mail.ipc.ac.cn
  • Supported by:
    the National Key Research and Development Program of China(2022YFA1207600);the National Natural Science Foundation of China(52272052)

Abstract:

In this work, iron-doped carbon dots(Fe-CDs) with strong peroxidase-mimicking activity were synthesized for tumor-specific therapy. Their intrinsic red fluorescence enabled high-contrast cellular imaging, revealing preferential mitochondrial accumulation. In the acidic and hydrogen peroxide(H₂O₂)-rich tumor microenvironment, Fe-CDs catalyzed hydroxyl radical(•OH) generation, inducing oxidative stress and lipid peroxidation, ultimately triggering ferroptosis. In vitro and in vivo studies demonstrated potent tumor inhibition. Furthermore, Fe-CDs exhibited excellent biocompatibility with no significant systemic toxicity. By integrating fluorescence imaging and catalytic therapy, this study presents a promising nanoplatform for tumor treatment and ferroptosis research.

Key words: Carbon dots, Nanozyme, Mitochondria-targeting, Ferroptosis, Tumor therapy

CLC Number: 

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