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Journal of Biomedical Optics

Optical detection and measurement of living cell morphometric features with single-shot quantitative phase microscopy
Author(s): Pierre Bon; Julien Savatier; Marine Merlin; Serge Monneret; Benoit F. Wattellier
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Paper Abstract

We present a quadriwave lateral shearing interferometer used as a wavefront sensor and mounted on a commercial non-modified transmission white-light microscope as a quantitative phase imaging technique. The setup is designed to simultaneously make measurements with both quantitative transmission phase and fluorescence modes: phase enables enhanced contrasted visualization of the cell structure including intracellular organelles, while fluorescence allows a complete and precise identification of each component. After the characterization of the phase measurement reliability and sensitivity on calibrated samples, we use these two imaging modes to measure the characteristic optical path difference between subcellular elements (mitochondria, actin fibers, and vesicles) and cell medium, and demonstrate that phase-only information should be sufficient to identify some organelles without any labeling, like lysosomes. Proof of principle results show that the technique could be used either as a qualitative tool for the control of cells before an experiment, or for quantitative studies on morphology, behavior, and dynamics of cells or cellular components.

Paper Details

Date Published: 6 July 2012
PDF: 8 pages
J. Biomed. Opt. 17(7) 076004 doi: 10.1117/1.JBO.17.7.076004
Published in: Journal of Biomedical Optics Volume 17, Issue 7
Show Author Affiliations
Pierre Bon, Aix-Marseille Univ. (France)
Julien Savatier, Aix-Marseille Univ. (France)
Marine Merlin, Aix-Marseille Univ. (France)
Serge Monneret, Aix-Marseille Univ. (France)
Benoit F. Wattellier, PHASICS S.A. (France)

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