| 초록 |
Supramolecular assembly of collagen fibrils into collagen fiber and its distribution in fish scales were investigated by various synchrotron techniques. By Zernike phase-contrast X-ray microscopy, it has been firstly observed that collagen fiber consists of helical substructures of collagen fibrils wrapped with incrustation. As it close to the scalar focus, loosened- and deteriorated-helical assemblies started to be observed with loosing wrapping incrustation. Freshly growing edge region showed rarely patched and one directionally arranged collagen fibers, in which specifically helical assemblies of collagen fibrils were found. On the contrary, relatively aged region of the rostral field close to the scalar focus displayed randomly directed and densely packed collagen fibers, in which loosened- and deteriorated-helical assemblies of collagen fibrils were mostly found. |
