Figure 6

Distribution of proteoglycans in the explants cultured with CIIF4 or M2139. Toluidine blue stained sections cultured for 14 days with (a) CIIF4 or (d) M2139 are shown alongside (b, e) chemical maps showing proteoglycan distribution and (c, f) FTIRM spectra from the central areas (red line) and near the surface of the tissue (blue line). The error bars represent 1 standard deviation at those points in the spectra.