Exploring red blood cell membrane dynamics with digital holographic microscopy

Daniel Boss; Jonas Kuehn; Christian Depeursinge; Pierre J. Magistretti; Pierre Marquet

doi:10.1117/12.854717

18 May 2010 Exploring red blood cell membrane dynamics with digital holographic microscopy

Daniel Boss, Jonas Kuehn, Christian Depeursinge, Pierre J. Magistretti, Pierre Marquet

Author Affiliations +

Proceedings Volume 7715, Biophotonics: Photonic Solutions for Better Health Care II; 77153I (2010) https://doi.org/10.1117/12.854717
Event: SPIE Photonics Europe, 2010, Brussels, Belgium

Abstract

Digital Holographic Microscopy (DHM) has been used to investigate the spontaneous cell membrane fluctuations (CMF) of the Red Blood Cell. DHM as an interferometric technique is able to accurately provide the wavefront deformation induced by a transparent specimen, including living cells in a transmission configuration. From a numerical reconstruction of a single hologram, quantitative phase contrast images are obtained. The local phase shift is proportional to the specimen thickness with accuracy of 5-10 nm. As a non invasive full field technique DHM is particularly well suited to assess and study membrane fluctuations of a large number of cells simultaneously. In our analysis we show that CMF amplitudes are unhomogenously distributed on the cellular surface and seem to correlate with the biconcave equilibrium shape of erythrocytes. A mean fluctuation amplitude of 47 nm is measured in a group of 198 erythrocytes.

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Daniel Boss, Jonas Kuehn, Christian Depeursinge, Pierre J. Magistretti, and Pierre Marquet "Exploring red blood cell membrane dynamics with digital holographic microscopy", Proc. SPIE 7715, Biophotonics: Photonic Solutions for Better Health Care II, 77153I (18 May 2010); https://doi.org/10.1117/12.854717

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