• Journal of Innovative Optical Health Sciences
  • Vol. 6, Issue 3, 1350024 (2013)
JING CHEN1, CHUNGEN GUO2, HONGSHENG LI1, XIAOQIN ZHU1、*, SHUYUAN XIONG2, and JIANXIN CHEN1
Author Affiliations
  • 1Institute of Laser and Optoelectronics Technology Fujian Provincial Key Laboratory for Photonics Technology Key Laboratory of OptoElectronic Science and Technology for Medicine of Ministry of Education Fujian Normal University, Fuzhou 350007, P. R. China
  • 2Department of Plastic Surgery The First Affiliated Hospital of Fujian Medical University Fujian Medical University, Fuzhou 350005, P. R. China
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    DOI: 10.1142/s1793545813500247 Cite this Article
    JING CHEN, CHUNGEN GUO, HONGSHENG LI, XIAOQIN ZHU, SHUYUAN XIONG, JIANXIN CHEN. NONLINEAR SPECTRAL IMAGING OF ELASTIC CARTILAGE IN RABBIT EARS[J]. Journal of Innovative Optical Health Sciences, 2013, 6(3): 1350024 Copy Citation Text show less

    Abstract

    Elastic cartilage in the rabbit external ear is an important animal model with attractive potential value for researching the physiological and pathological states of cartilages especially during wound healing. In this work, nonlinear optical microscopy based on two-photon excited fluorescence and second harmonic generation were employed for imaging and quantifying the intact elastic cartilage. The morphology and distribution of main components in elastic cartilage including cartilage cells, collagen and elastic fibers were clearly observed from the high-resolution two-dimensional nonlinear optical images. The areas of cell nuclei, a parameter related to the pathological changes of normal or abnormal elastic cartilage, can be easily quantified. Moreover, the three-dimensional structure of chondrocytes and matrix were displayed by constructing three-dimensional image of cartilage tissue. At last, the emission spectra from cartilage were obtained and analyzed. We found that the different ratio of collagen over elastic fibers can be used to locate the observed position in the elastic cartilage. The redox ratio based on the ratio of nicotinamide adenine dinucleotide (NADH) over flavin adenine dinucleotide (FAD) fluorescence can also be calculated to analyze the metabolic state of chondrocytes in different regions. Our results demonstrated that this technique has the potential to provide more accurate and comprehensive information for the physiological states of elastic cartilage.
    JING CHEN, CHUNGEN GUO, HONGSHENG LI, XIAOQIN ZHU, SHUYUAN XIONG, JIANXIN CHEN. NONLINEAR SPECTRAL IMAGING OF ELASTIC CARTILAGE IN RABBIT EARS[J]. Journal of Innovative Optical Health Sciences, 2013, 6(3): 1350024
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