Juan-Juan FU, Jin-Lan TANG, Yi-Lin BAO, Hui SHANG, Jin-Jin WU, Xiao WANG, Jian-Hua YIN. Novel design of a NIR fiber optic probe for in situ detection of osteoarthritis[J]. Journal of Infrared and Millimeter Waves, 2021, 40(6): 784
- Journal of Infrared and Millimeter Waves
- Vol. 40, Issue 6, 784 (2021)
Fig. 1. Overall structure diagram of NIR fiber probe
Fig. 2. （a）Schematic diagrams of the top end of the exit and entrance optical fibers，（b）the end face arrangement of 6 exit optical fibers，（c）the end face arrangement of 13 incident optical fibers
Fig. 3. Setting photo of NIR fiber probe coupled with FTNIR system
Fig. 4. (a) Conventional transmission FTNIR spectra and optical fiber - FTNIR spectra of sucrose powder, (b) optical fiber -FTNIR spectra of sucrose powder by 10-time repeated measurement at same position
Fig. 5. Average in-situ NIR spectra of articular cartilage (Health and OA tissues) BC (a) and second derivative (2nd-3-25SG) (b)
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Table 1. The simulation results of gradient-index (grin) lens with different distances to the top of fiber bundle
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Table 2. The relationships between NIR spectral characteristic bands and main components, functional groups of articular cartilage [18]
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Table 3. FDA results of in-situ NIR spectra of healthy and OA tissues after 1st -2-21SG pretreatment
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