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Biomedical Optics Express

Biomedical Optics Express

  • Editor: Joseph A. Izatt
  • Vol. 2, Iss. 3 — Mar. 1, 2011
  • pp: 485–490

Effective 3D viscoelasticity of red blood cells measured by diffraction phase microscopy

Ru Wang, Huafeng Ding, Mustafa Mir, Krishnarao Tangella, and Gabriel Popescu  »View Author Affiliations


Biomedical Optics Express, Vol. 2, Issue 3, pp. 485-490 (2011)
http://dx.doi.org/10.1364/BOE.2.000485


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Abstract

We present optical measurements of nanoscale red blood cell fluctuations obtained by highly sensitive quantitative phase imaging. These spatio-temporal fluctuations are modeled in terms of the bulk viscoelastic response of the cell. Relating the displacement distribution to the storage and loss moduli of the bulk has the advantage of incorporating all geometric and cortical effects into a single effective medium behavior. The results on normal cells indicate that the viscous modulus is much larger than the elastic one throughout the entire frequency range covered by the measurement, indicating fluid behavior.

© 2011 OSA

OCIS Codes
(000.0000) General : General
(000.2700) General : General science

ToC Category:
Cell Studies

History
Original Manuscript: December 2, 2010
Revised Manuscript: January 7, 2011
Manuscript Accepted: January 29, 2011
Published: February 3, 2011

Citation
Ru Wang, Huafeng Ding, Mustafa Mir, Krishnarao Tangella, and Gabriel Popescu, "Effective 3D viscoelasticity of red blood cells measured by diffraction phase microscopy," Biomed. Opt. Express 2, 485-490 (2011)
http://www.opticsinfobase.org/boe/abstract.cfm?URI=boe-2-3-485


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