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Linhong Deng talks with
ScienceWatch.com and answers a few questions about
this month's Fast Breaking Paper in the field of Materials
Science. The author has also sent along images of
their work.
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Article Title: Fast and slow dynamics of the
cytoskeleton
Authors:
Deng,
LH;Trepat, X;Butler, JP;Millet, E;Morgan, KG;Weitz,
DA;Fredberg, JJ
Journal: NAT MATER
Volume: 5
Issue: 8
Page: 636-640
Year: AUG 2006
Return to interview.
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Figures and descriptions:
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Figure
1:
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Figure 1: Magnetic bead twisting cytometry
used to measure the mechanical properties
of the cell (top), and freshly isolated
cells before (lower left) and after (lower
right) magnetic beads are attached
to.
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Figure
2:
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Figure 2: Data are widely spread due to
intrinsic heterogeneity of the cells.
However, a trend of deviation in the data
at high frequency is
noticeable.
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Figure
3:
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Figure 3: Two regimes emerge from the wide
spread data. At high frequencies (>100
Hz), the complex modulus of the cell
increases with frequency as a power law of
a universal exponent of 0.75, exactly like
semiflexible filament network systems. At
low frequency (<100 Hz), it increases
with frequency as a weak power law of
non-universal exponent,
a
(a=0.05 in the
particular case of Figure 3), like soft
glassy materials.
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Return to
interview.
2008 : February 2008 - Fast Breaking Papers : Linhong Deng - Figures & Descriptions
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