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首页> 外文期刊>Journal of Biophotonics >Instant polarized light microscopy for imaging collagen microarchitecture and dynamics
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Instant polarized light microscopy for imaging collagen microarchitecture and dynamics

机译:瞬间偏振光显微镜,用于成像胶原蛋白微体系结构和动力学

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摘要

Collagen fibers are a primary load-bearing component of connective tissues and are therefore central to tissue biomechanics and pathophysiology. Understanding collagen architecture and behavior under dynamic loading requires a quantitative imaging technique with simultaneously high spatial and temporal resolutions. Suitable techniques are thus rare and often inaccessible. In this study, we present instant polarized light microscopy (IPOL), in which a single snapshot image encodes information on fiber orientation and retardance, thus fulfilling the requirement. We utilized both simulation and experimental data from collagenous tissues of chicken tendon, sheep eye, and porcine heart to evaluate the effectiveness of IPOL as a quantitative imaging technique. We demonstrate that IPOL allows quantitative characterization of micron-scale collagen fiber architecture at full camera frame rates (156 frames/second herein).
机译:胶原纤维是结缔组织的主要承重成分,因此是组织生物力学和病理生理学的核心。了解胶原在动态载荷下的结构和行为需要同时具有高空间和时间分辨率的定量成像技术。因此,合适的技术非常罕见,而且往往难以获得。在这项研究中,我们提出了即时偏振光显微镜(IPOL),其中单个快照图像编码有关光纤方向和延迟的信息,从而满足要求。我们利用来自鸡腱、羊眼和猪心的胶原组织的模拟和实验数据来评估IPOL作为定量成像技术的有效性。我们证明,IPOL可以在全帧速率(本文中为156帧/秒)下对微米级胶原纤维结构进行定量表征。

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