Imaging sclera with hard X-ray microscopy

Fullwood, Nigel J. and Martin, Frank and Bentley, Adam and Lee, Jin Pyung and Lee, Sang Joon (2011) Imaging sclera with hard X-ray microscopy. Micron, 42 (5). pp. 506-511. ISSN 0968-4328

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In this study, the organization of collagen fibrils within the sclera of the eye was investigated using the 7 keV hard X-ray microscope of the Pohang light source and compared to images from electron and atomic force microscopy. From the captured X-ray images, individual collagen fibrils were observed clearly in a spatial resolution much better than 100 nm, both in longitudinal sections and in transverse sections. Some of the collagen fibrils showed evidence of axial periodicity. In some regions of the samples, we could see cross-bridge like structures between adjacent collagen fibrils. The X-ray microscope also allowed the observation of keratocytes and the lamella structure of the scleral stroma. The X-ray microscope has some unique advantages in the nano-scale imaging of bio-samples relative to other established imaging techniques. (C) 2011 Elsevier Ltd. All rights reserved.

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21 Jul 2011 15:32
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21 Nov 2022 21:32