Figure 4. Representative sFTIR spectra from porcine chondrocyte monolayers compared to human synovial fluid.
Chondrocyte monolayers were incubated with ATP for 72 hours. A crystal from these monolayers was compared with a CPPD crystal from human synovial fluid. The chondrocyte spectrum was collected with a 12×12μm aperture and 64 scans. The synovial fluid spectrum was collected with a 10×10μm aperture and 64 scans. These spectra are virtually identical.