ArticleMacromolecules2025
Rouse and Zimm Short-Time Exponents When Subtracting the Solvent Contribution in Semidilute Polymeric Solutions.
Article in Macromolecules, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- High-frequency micro-viscoelasticity of biofluids by using optical trapping interferometry.Biophysical reviews · 2026Review
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Abstract
Optical trapping interferometry measures the Brownian motion of an optically trapped microsphere inside a fluid, allowing access to the short-time/high-frequency power-law behavior appearing in the complex modulus of polymeric aqueous suspensions, which is characteristic of the individual dynamics of the macromolecules. The short-time behavior is shaped by the hydrodynamics and inertia effects because of the solvent, whose influence in the complex modulus we analyze through inertia-corrected expressions and by removing the contribution of the solvent. We detect that the classic Zimm and Rouse models in the high-frequency region reproduce the experimental results for aqueous suspensions of poly-(ethylene oxide) and of worm-like micelles in the semidilute regime when the water contribution is adequately subtracted. Our results reflect the incompleteness of the Zimm-Rouse model for including full hydrodynamic interactions but also reveal how the transition between different dynamic behaviors of the polymers in suspension depends on the network interconnection.
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