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. Author manuscript; available in PMC: 2008 Dec 1.
Published in final edited form as: Osteoarthritis Cartilage. 2008 May 12;16(11):1395–1402. doi: 10.1016/j.joca.2008.03.019

Figure 4. Representative sFTIR spectra from porcine chondrocyte monolayers compared to human synovial fluid.

Figure 4

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.