Figure 4
XANES human osteoarthritic articular cartilage compounds. Absorption spectra were obtained for biological cartilage samples previously characterized by FT-IR. Red solid line, carbapatite; red dotted line, amorphous carbonated Ca2+ apatite; black solid line, Ca2+ pyrophosphate dehydrate; blue solid line, non-diffusible tissue Ca2+. (a) Patient 1. (b) Patient 3. (c) Patient 4. (d) Patient 5. (e) Patient 6. (f) Patient 2. |