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Biomedical Optics Express

Biomedical Optics Express

  • Editor: Joseph A. Izatt
  • Vol. 2, Iss. 7 — Jul. 1, 2011
  • pp: 2022–2034

Microfluidic characterization of cilia-driven fluid flow using optical coherence tomography-based particle tracking velocimetry

Stephan Jonas, Dipankan Bhattacharya, Mustafa K. Khokha, and Michael A. Choma  »View Author Affiliations

Biomedical Optics Express, Vol. 2, Issue 7, pp. 2022-2034 (2011)

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Motile cilia are cellular organelles that generate directional fluid flow across various epithelial surfaces including the embryonic node and respiratory mucosa. The proper functioning of cilia is necessary for normal embryo development and, for the respiratory system, the clearance of mucus and potentially harmful particulate matter. Here we show that optical coherence tomography (OCT) is well-suited for quantitatively characterizing the microfluidic-scale flow generated by motile cilia. Our imaging focuses on the ciliated epithelium of Xenopus tropicalis embryos, a genetically manipulable and experimentally tractable animal model of human disease. We show qualitative flow profile characterization using OCT-based particle pathline imaging. We show quantitative, two-dimensional, two-component flow velocity field characterization using OCT-based particle tracking velocimetry. Quantitative imaging and phenotyping of cilia-driven fluid flow using OCT will enable more detailed research in ciliary biology and in respiratory medicine.

© 2011 OSA

OCIS Codes
(110.4500) Imaging systems : Optical coherence tomography
(170.3880) Medical optics and biotechnology : Medical and biological imaging
(280.2490) Remote sensing and sensors : Flow diagnostics
(110.4153) Imaging systems : Motion estimation and optical flow

ToC Category:
Optical Coherence Tomography

Original Manuscript: May 17, 2011
Revised Manuscript: June 16, 2011
Manuscript Accepted: June 19, 2011
Published: June 22, 2011

Stephan Jonas, Dipankan Bhattacharya, Mustafa K. Khokha, and Michael A. Choma, "Microfluidic characterization of cilia-driven fluid flow using optical coherence tomography-based particle tracking velocimetry," Biomed. Opt. Express 2, 2022-2034 (2011)

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