Citation: ZHANG Xiao, YANG Rong, WANG Chen, HENG Cheng-Lin. Cell Biocompatibility of Functionalized Graphene Oxide[J]. Acta Physico-Chimica Sinica, ;2012, 28(06): 1520-1524. doi: 10.3866/PKU.WHXB201203131
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We report on synthesis of nanoscale graphene oxide (N ) by modified Hummers’method. Synthesized N 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 N were characterized by transmission electron microscopy (TEM), Fourier transform infrared (FTIR) spectroscopy, and zeta potential analyzer. Cell viability studies show that PEG-modified N particles are highly soluble and incur almost no cytotoxicity to A549 cells, which suggest a great potential for the use of N in various biomedical applications.
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