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Microscopic structural study of collagen aging in isolated fibrils using polarized second harmonic generation. | LitMetric
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Microscopic structural study of collagen aging in isolated fibrils using polarized second harmonic generation.

Dora Aït-Belkacem Marie Guilbert Muriel Roche Julien Duboisset Patrick Ferrand Ganesh Sockalingum Pierre Jeannesson Sophie Brasselet

J Biomed Opt

Aix-Marseille Université, Institut Fresnel, CNRS UMR 7249, Ecole Centrale, Marseille, Domaine Universitaire St. Jérôme, 13013 Marseille, France.

Published: August 2012

Polarization resolved second harmonic generation (PSHG) is developed to study, at the microscopic scale, the impact of aging on the structure of type I collagen fibrils in two-dimensional coatings. A ribose-glycated collagen is also used to mimic tissue glycation usually described as an indicator of aging. PSHG images are analyzed using a generic approach of the molecular disorder information in collagen fibrils, revealing significant changes upon aging, with a direct correlation between molecular disorder and fibril diameters.

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http://dx.doi.org/10.1117/1.JBO.17.8.080506DOI Listing

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