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

XUE Xiaokuang, LI Jian, LIANG Huanyi, WANG Yiying, GE Jiechao

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Chem J Chin Univ ›› 2025, Vol. 46 ›› Issue (6) : 171-183. DOI: 10.7503/cjcu20250094
Article

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

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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

O636

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XUE Xiaokuang , LI Jian , LIANG Huanyi , et al . Red-emissive Mitochondria-targeting Iron-doped Carbon Dots for Tumor Therapy via Peroxidase-mimicking Activity-induced Ferroptosis. Chemical Journal of Chinese Universities. 2025, 46(6): 171-183 https://doi.org/10.7503/cjcu20250094

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Funding

the National Key Research and Development Program of China(2022YFA1207600)
the National Natural Science Foundation of China(52272052)

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