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. Author manuscript; available in PMC: 2014 Apr 1.
Published in final edited form as: Environ Sci Technol. 2009 Aug 15;43(16):6378–6384. doi: 10.1021/es900990d

Figure 4.

Figure 4

Comparative toxicity (PI) of the supernatant (liquid phase containing the dissolved residue from the synthesis) and the solid phase containing C60 aggregates. The phase separation is performed by centrifugation at 16,000 rpm for all particles. Dialysis was performed with cut-off of 4 nm dialysis tubes for THF/nC60. The toxicity observed in presence of THF/nC60 comes from the supernatant.