1 July 2006 Dehydration mechanism of optical clearing in tissue
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J. of Biomedical Optics, 11(4), 041117 (2006). doi:10.1117/1.2343208
Abstract
Previous studies identified various mechanisms of light scattering reduction in tissue induced by chemical agents. Our results suggest that dehydration is an important mechanism of optical clearing in collagenous and cellular tissue. Photographic and optical coherence tomography images indicate that air-immersed skin and tendon specimens become similarly transparent to glycerol-immersed specimens. Transmission electron microscopy images reveal that dehydration causes individual scattering particles such as collagen fibrils and organelles to become more densely packed, but does not significantly alter size. A heuristic particle-interaction model predicts that the scattering particle volume fraction increase can contribute substantially to optical clearing in collagenous and cellular tissue.
Christopher G. Rylander, Oliver F. Stumpp, Thomas E. Milner, Nathaniel Joseph Kemp, John M. Mendenhall, Kenneth R. Diller, Ashley J. Welch, "Dehydration mechanism of optical clearing in tissue," Journal of Biomedical Optics 11(4), 041117 (1 July 2006). http://dx.doi.org/10.1117/1.2343208
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KEYWORDS
Scattering

Tissue optics

Optical clearing

Light scattering

Particles

Tissues

Refractive index

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