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Journal of Biomedical Optics

Toward label-free Raman-activated cell sorting of cardiomyocytes derived from human embryonic stem cells
Author(s): Flavius C. Pascut; Ioan Notingher; Huey T. Goh; Vinoj George; Chris Denning
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Paper Abstract

Raman micro-spectroscopy (RMS) has been recently proposed for label-free phenotypic identification of human embryonic stem cells (hESC)-derived cardiomyocytes. However, the methods used for measuring the Raman spectra led to acquisition times of minutes per cell, which is prohibitive for rapid cell sorting applications. In this study we evaluated two measurement strategies that could reduce the measurement time by a factor of more than 100. We show that sampling individual cells with a laser beam focused to a line could eliminate the need of cell raster scanning and achieve high prediction accuracies (>95% specificity and >96% sensitivity) with acquisition times ∼5 seconds per cell. However, the use of commercially-available higher power lasers could potentially lead to sorting speeds of ∼10 cells per s. This would start to progress RMS to the field of cell sorting for applications such as enrichment and purification of hESC-derived cardiomyocytes

Paper Details

Date Published: 1 April 2011
PDF: 5 pages
J. Biomed. Opt. 16(4) 045002 doi: 10.1117/1.3570302
Published in: Journal of Biomedical Optics Volume 16, Issue 4
Show Author Affiliations
Flavius C. Pascut, The Univ. of Nottingham (United Kingdom)
Ioan Notingher, The Univ. of Nottingham (United Kingdom)
Huey T. Goh, The Univ. of Nottingham (United Kingdom)
Vinoj George, The Univ. of Nottingham (United Kingdom)
Chris Denning, The Univ. of Nottingham (United Kingdom)


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