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Anisotropic properties of bovine nasal cartilage

Xia, Yang
Zheng, Shaokuan
Szarko, Matthew
Lee, Jihyun
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UMass Chan Affiliations
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Journal Article
Publication Date
2012-03-01
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Abstract

To investigate the structural anisotropy in bovine septal cartilage, quantitative procedures in microscopic magnetic resonance imaging (muMRI), polarized light microscopy (PLM), and mechanical indentation were used to measure the tissue in three orthogonal planes: vertical, medial, and caudocephalic. The quantitative T2 imaging experiments in muMRI found strong anisotropy in the images of both vertical and caudocephalic planes but little anisotropy in the images from the medial plane. The PLM birefringent experiments found that the retardation values in the medial section were only about 10% of these in the vertical and caudocephalic sections and that the angle values in all three sections followed the rotation of the tissue section in the microscope stage. The stress relaxation experiments in mechanical indentation showed reduced stiffness in the medial plane compared to stiffness in either the vertical or caudocephalic planes. Collectively, the results in this project coherently indicate a marked structural anisotropy in cartilage from the nasal septum, where the long axis of the collagen fibrils is oriented in parallel with the medial axis.

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Microsc Res Tech. 2012 Mar;75(3):300-6. doi: 10.1002/jemt.21058. Epub 2011 Aug 5. Link to article on publisher's site

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DOI
10.1002/jemt.21058
PubMed ID
21823202
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