Rheofluidics: frequency-dependent rheology of single drops

Fuente: arXiv
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Autori principali: Milani, Matteo, Wang, Wenyun, Russotto, Lorenzo, Zong, Weiyu, Jahnke, Kevin, Weitz, David A., Aime, Stefano
Natura: Preprint
Pubblicazione: 2026
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author Milani, Matteo
Wang, Wenyun
Russotto, Lorenzo
Zong, Weiyu
Jahnke, Kevin
Weitz, David A.
Aime, Stefano
author_facet Milani, Matteo
Wang, Wenyun
Russotto, Lorenzo
Zong, Weiyu
Jahnke, Kevin
Weitz, David A.
Aime, Stefano
contents We present Rheofluidics, a microfluidic technique that measures the frequency-dependent rheology of individual micron-scale objects. We apply oscillatory hydrodynamic stresses by flowing them through channels with modulated constrictions, and measure their deformation. Unlike bulk rheology, which measures collective properties, Rheofluidics provides heretofore unattainable measurements of individual particles. We apply Rheofluidics to discover frequency-dependent surface tension of surfactants, very high-frequency viscoelasticity of microgels and unexpected frequency-dependent bending modulus of vesicles.
format Preprint
id arxiv_https___arxiv_org_abs_2601_07461
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Rheofluidics: frequency-dependent rheology of single drops
Milani, Matteo
Wang, Wenyun
Russotto, Lorenzo
Zong, Weiyu
Jahnke, Kevin
Weitz, David A.
Aime, Stefano
Soft Condensed Matter
We present Rheofluidics, a microfluidic technique that measures the frequency-dependent rheology of individual micron-scale objects. We apply oscillatory hydrodynamic stresses by flowing them through channels with modulated constrictions, and measure their deformation. Unlike bulk rheology, which measures collective properties, Rheofluidics provides heretofore unattainable measurements of individual particles. We apply Rheofluidics to discover frequency-dependent surface tension of surfactants, very high-frequency viscoelasticity of microgels and unexpected frequency-dependent bending modulus of vesicles.
title Rheofluidics: frequency-dependent rheology of single drops
topic Soft Condensed Matter
url https://arxiv.org/abs/2601.07461