CHINESE JOURNAL OF COMPUTATIONAL PHYSICS ›› 2020, Vol. 37 ›› Issue (4): 479-487.

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Potential Biotoxicity of Fullerene C60 on Cell Membrane: Molecular Dynamics Simulation

LIU Yongzhi1, XIE Liqiang1, LIANG Shengde1,2, ZHU Kaili3, XI Zhonghong1,4, YUAN Fangqiang1   

  1. 1. Department of Physics and Hydraulic Engineering, Gansu Normal University for Nationalities, Hezuo, Gansu 747000, China;
    2. Key Laboratory of Modern Acoustics, Ministry of Education, Institute of Acoustics, Nanjing University, Nanjing, Jiangsu 210093, China;
    3. Department of Chemistry and Life Sciences, Gansu Normal University for Nationalities, Hezuo, Gansu 747000, China;
    4. College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China
  • Received:2019-08-11 Revised:2019-11-24 Online:2020-07-25 Published:2020-07-25

Abstract: Coarse-grained simulations were adopted to investigate interaction between fullerene C60 cluster and lipid membranes. C60 aggregates in water and their interaction with lipid membrane were investigated. It was found that the aggregate can penetrate the membrane directly instead of endocytosis and pinocytosis. The penetration caused transmembrane movement of lipid and water molecules. Interaction between C60 molecules and small lipid vesicle was investigated and dependence on C60 concentration was interpreted explicitly. Conflicting experimental observations due to different preparation methods and processes are also provided. Potential mechanism of the biotoxicity of fullerene was put forward. Our results are helpful in medical applications.

Key words: fullerene, lipid membrane, molecular simulation, biotoxicity

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