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Updated: Feb 13, 2026

Functionalization and Dispersion of Carbon Nanomaterials Using an Environmentally Friendly Ultrasonicated Ozonolysis Process
Published on: May 30, 2017
Evaluation of the structure-activity relationship of carbon nanomaterials as antioxidants
Xiaju Cheng1, Xiaohu Ni1, Renfei Wu1
1School for Radiological & Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, PR China.
Aim:
To develop the potential application of carbon nanomaterials as antioxidants calls for better understanding of how the specific structure affects their antioxidant activity.
Materials & Methods:
Several typical carbon nanomaterials, including graphene quantum dots and fullerene derivatives were characterized and their radical scavenging activities were evaluated; in addition, the in vitro and in vivo radioprotection experiments were performed.
Results:
These carbon nanomaterials can efficiently scavenge free radicals in a structure-dependent manner. In vitro assays demonstrate that administration of these carbon nanomaterials markedly increases the surviving fraction of cells exposed to ionizing radiation. Moreover, in vivo experiments confirm that their administration can also increase the survival rates of mice exposed to radiation.
Conclusion:
All results confirm that large, buckyball-shaped fullerenes show the strongest antioxidant properties and the best radioprotective efficiency. Our work will be useful in guiding the design and optimization of nanomaterials for potential antioxidant and radioprotection bio-applications.
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