Acta Phys. -Chim. Sin. ›› 2012, Vol. 28 ›› Issue (06): 1520-1524.doi: 10.3866/PKU.WHXB201203131

• PHYSICAL CHEMISTRY OF MATERIALS • Previous Articles     Next Articles

Cell Biocompatibility of Functionalized Graphene Oxide

ZHANG Xiao1,2, YANG Rong2, WANG Chen2, HENG Cheng-Lin1   

  1. 1. Key Laboratory of Cluster Science of Ministry of Education, School of Physics, Beijing Institute of Technology, Beijing 100081, P. R. China;
    2. Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Chinese Academy of Sciences, National Center for Nanoscience and Technology, Beijing 100190, P. R. China
  • Received:2011-11-25 Revised:2012-03-11 Published:2012-05-17
  • Contact: YANG Rong, HENG Cheng-Lin;
  • Supported by:

    The project was supported by the National Natural Science Foundation of China (20911130229, 21073047) and Main Direction Program of Knowledge Innovation of Chinese Academy of Sciences, China (KJCX2.YW.M15).

Abstract: We report on synthesis of nanoscale graphene oxide (NGO) by modified Hummers’method. Synthesized NGO particles were surface functionalized by attaching carboxylic acid and polyethylene glycol groups to render them soluble in cell culture medium. The structures and properties of functionalized NGO were characterized by transmission electron microscopy (TEM), Fourier transform infrared (FTIR) spectroscopy, and zeta potential analyzer. Cell viability studies show that PEG-modified NGO particles are highly soluble and incur almost no cytotoxicity to A549 cells, which suggest a great potential for the use of NGO in various biomedical applications.

Key words: Graphene oxide, Nanomaterials, Biocompatibility, Surface functionalization


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