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SHR Neuro Krebs Kardio Lipid

Schmid, F; Sommer, G; Rappolt, M; Schulze-Bauer, CA; Regitnig, P; Holzapfel, GA; Laggner, P; Amenitsch, H.
In situ tensile testing of human aortas by time-resolved small-angle X-ray scattering.
J SYNCHROTRON RADIAT. 2005; 12: 727-733.
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Autor/innen der Med Uni Graz:
Regitnig Peter
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Abstract:
The collagen diffraction patterns of human aortas under uniaxial tensile test conditions have been investigated by synchrotron small-angle X-ray scattering. Using a recently designed tensile testing device the orientation and d-spacing of the collagen fibers in the adventitial layer have been measured in situ with the macroscopic force and sample stretching under physiological conditions. The results show a direct relation between the orientation and extension of the collagen fibers on the nanoscopic level and the macroscopic stress and strain. This is attributed first to a straightening, second to a reorientation of the collagen fibers, and third to an uptake of the increasing loads by the collagen fibers.
Find related publications in this database (using NLM MeSH Indexing)
Aorta - chemistry
Biomechanics - chemistry
Collagen - chemistry
Elasticity - chemistry
Humans - chemistry
Scattering, Radiation - chemistry
Synchrotrons - chemistry
Tensile Strength - chemistry
X-Ray Diffraction - instrumentation

Find related publications in this database (Keywords)
human tissue
biomechanics
artery
small-angle X-ray scattering
collagen
fiber diffraction
tensile testing
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