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 μm-1. The mean-square amplitude scales as q4±ε for q0.7 μm-1, suggesting that flickering is dominated mainly by bending stiffness. We measured a bending modulus of Kc=(2±0.5)×10-20 N m as compared to Kc=(5±1.5)×10-20 N m found for dimyristoylphosphatidylcholine (DMPC) vesicles with the same technique.
Original language | English |
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Pages (from-to) | 7998-8001 |
Number of pages | 4 |
Journal | Physical Review A |
Volume | 46 |
Issue number | 12 |
DOIs | |
State | Published - 1992 |