Ultra‐Soft Liquid‐Ferrofluid Interfaces
Abstract Soft interfaces are ubiquitous in nature, governing quintessential hydrodynamics functions, like lubrication, stability, and cargo transport. It is shown here how a magnetic pressure at a magnetic–nonmagnetic fluid interface results in an ultra‐soft interface with nonlinear elasticity and tunable viscous shear properties. The balance between magnetic pressure, viscous stress, and Laplace pressure results in a deformed and stable liquid‐in‐liquid tube with apparent elasticity in the range of 2–10 kPa, possibly extended by a proper choice of liquid properties. Such highly deformable liquid–liquid interfaces of arbitrary shape with vanishing viscous shear open doors to unique microfluidic phenomena, biomaterial flows and complex biosystems mimicking.
Authors
- Arvind Arun Dev (ORCID: https://orcid.org/0000-0003-3601-4386)
- Bernard Doudin (ORCID: https://orcid.org/0000-0002-0657-4780)
- Thomas M. Hermans (ORCID: https://orcid.org/0000-0003-1121-1754)
Institutions
- Madrid Institute for Advanced Studies (ES)
- Centre National de la Recherche Scientifique (FR)
- Université Paris Sciences et Lettres (FR)
- IMDEA Nanoscience (ES)
- Institut de Physique et Chimie des Matériaux de Strasbourg (FR)
- Laboratory Colloïdes et Matériaux Divisés (FR)
- ESPCI Paris (FR)
Publication Details
- Journal
- Advanced Functional Materials
- Published
- 2024-09-26
- DOI
- https://doi.org/10.1002/adfm.202411811
- Citations
- 3
- Primary Topic
- Characterization and Applications of Magnetic Nanoparticles
- Type
- article
- Field-Weighted Citation Impact
- 0.55
Funders
- European Commission
- Agence Nationale de la Recherche
- Université de Strasbourg
- Institut Universitaire de France
- H2020 Marie Skłodowska-Curie Actions