Comparative study of the angle-resolved backscattering properties of collagen fibers in bovine tendon and cartilage

Deepa K. Kasaragod, Zenghai Lu, Stephen J. Matcher

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

In a biological tissue, light scattering is based on the size and type of scatterers seen as refractive index variations that describe the optical properties shown. In this paper, we have implemented the variable incidence angle technique of multiple angle of illumination experiment on tendon and cartilage samples whose dominant constituents are genetically different types of collagen fibers, type I and type II, respectively. It is found that tendon displays a much greater angular anisotropy in its optical backscattering coefficient than the healthy cartilage. We propose that this is due to a more uniform distribution of fine fibrils than is found in tendon. Rayleigh-Gans approximation is used to give qualitative support to this idea.

Original languageEnglish
Article number080501
Number of pages3
JournalJournal of Biomedical Optics
Volume16
Issue number8
DOIs
Publication statusPublished - 1 Aug 2011
Externally publishedYes

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