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