Figure 1
From: C60-Fullerenes: detection of intracellular photoluminescence and lack of cytotoxic effects
Physical properties of methanol C60. (A). Fullerenes suspended in water, methanol, and toluene. (B). UV/Vis absorption spectra of C60 suspended in methanol at a concentration of 0.2 mg/ml. (C). Samples were excited with 488 nm and PL spectra were recorded. (D). Measurements of particle size distributions of C60 in methanol (solid line) or in toluene (dashed line). (E) TEM micrograph of fullerene crystals in methanol drop-deposited onto a copper grid. Scale bar is 50 nm.