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Optics Letters


  • Editor: Alan E. Willner
  • Vol. 35, Iss. 16 — Aug. 15, 2010
  • pp: 2765–2767

Anisotropic Raman scattering in collagen bundles

Marek Janko, Polina Davydovskaya, Michael Bauer, Albert Zink, and Robert W. Stark  »View Author Affiliations

Optics Letters, Vol. 35, Issue 16, pp. 2765-2767 (2010)

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Collagen is the main connective tissue protein of vertebrates and shows exceptional mechanical and optical properties. The alignment of collagen fibrils correlates to the function of a specific tissue and leads to optical anisotropy. The effect of the molecular alignment on Raman scattering, however, has barely been investigated. We found that the peak intensities of the C C , C O , and N H vibrational modes, which are typical for the Raman bands of the protein backbone, change with the orientation of the collagen fibrils. These observations demonstrate that Raman spectra contain specific information regarding molecular and fiber alignment.

© 2010 Optical Society of America

OCIS Codes
(170.1470) Medical optics and biotechnology : Blood or tissue constituent monitoring
(170.6510) Medical optics and biotechnology : Spectroscopy, tissue diagnostics
(190.4710) Nonlinear optics : Optical nonlinearities in organic materials
(300.6450) Spectroscopy : Spectroscopy, Raman
(170.6935) Medical optics and biotechnology : Tissue characterization

ToC Category:

Original Manuscript: May 26, 2010
Revised Manuscript: July 7, 2010
Manuscript Accepted: July 15, 2010
Published: August 12, 2010

Virtual Issues
Vol. 5, Iss. 13 Virtual Journal for Biomedical Optics

Marek Janko, Polina Davydovskaya, Michael Bauer, Albert Zink, and Robert W. Stark, "Anisotropic Raman scattering in collagen bundles," Opt. Lett. 35, 2765-2767 (2010)

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