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Single and multi-particle passive microrheology of low-density fluids using sedimented microspheres
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10.1063/1.4792742
/content/aip/journal/apl/102/7/10.1063/1.4792742
http://aip.metastore.ingenta.com/content/aip/journal/apl/102/7/10.1063/1.4792742

Figures

Image of FIG. 1.
FIG. 1.

Two examples of Gaussian distributions for particle jumps on single-particle MR experiments. (a) Magnetic microsphere: s, obtaining μm2/s and then mPa s. (b) Melamine microsphere: s and μm2/s and then mPa s. Values in Table I are averages of several experiments.

Image of FIG. 2.
FIG. 2.

Multi-particle MR results. Unified curves for , and corrected by factor for microparticles made of melamine resin ( ), PS ( ), and magnetic (PS and magnetite) (△). (a) Water-glycerol 20% mixture. Correction factors are 2.16 (melamine), 1.05 (PS), and 2.30 (magnetic) (b) Water-PEO (200 k Da) 1%. Correction factors: 2.18, 1.18, 2.38.

Image of FIG. 3.
FIG. 3.

Simulations of 2D-particles in a Brownian fluid showing the apparent viscoelastic behavior. Periodic boundary conditions are used in all the showed data. Symbols: directly from simulations (□), from not-compressed images on TIF format ( ) and from degraded images on JPG format (△) (a) mPa S, (b) mPa S, (c) mPa S. (d) An apparent viscoelastic behavior appears after a random modification of the saved particles' positions.

Tables

Generic image for table
Table I.

Results on single-particle MR using water-glycerol (20%) mixture.

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/content/aip/journal/apl/102/7/10.1063/1.4792742
2013-02-19
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Single and multi-particle passive microrheology of low-density fluids using sedimented microspheres
http://aip.metastore.ingenta.com/content/aip/journal/apl/102/7/10.1063/1.4792742
10.1063/1.4792742
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