FIG. 6.

Raman spectra of five individual chondrocytes (Nos. 1, 3–6) in a scaffold embedded with 1000 μg/mL nanoceria acquired at day 33 in comparison with an average spectrum of five control cells. For comparison, Raman spectrum of a nanoceria cluster in the scaffold is shown. Vertical bars show standard deviations in the main diagnostic peaks (Table 1) for the average spectrum of the control sample. The averaging procedure is shown in the Supplementary Data. Optical images of cells (No. 1, 3–5) are shown in Figure 5. Color images available online at www.liebertpub.com/tea