Spectral analysis of erythrocyte flickering in the 0.3–4-μregime by microinterferometry combined with fast image processing
- 1 December 1992
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 46 (12), 7998-8001
- https://doi.org/10.1103/physreva.46.7998
Abstract
Reflection interference microscopy in combination with real-time image processing was applied to determine the spatial spectrum of the mean-square amplitude of erythrocyte flickering in the wave-vector regime 0.3≤q≤4 μ. The mean-square amplitude scales as for q≥0.7 μ, suggesting that flickering is dominated mainly by bending stiffness. We measured a bending modulus of =(2±0.5)× N m as compared to =(5±1.5)× N m found for dimyristoylphosphatidylcholine (DMPC) vesicles with the same technique.
Keywords
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