ArticleProceedings of the National Academy of Sciences of the United States of America2022
Magnetohydrodynamic levitation for high-performance flexible pumps.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed.
- A flexible liquid metal magnetohydrodynamic pump for soft robotic systems.Nature communications · 2026Article
- Shapeshifting Liquid Metal Droplets for Soft Fluidic Machines.Advanced materials (Deerfield Beach, Fla.) · 2026Article
- Magnetoactive bistable soft actuators for programmable large shape transformations at low magnetic fields.Nature communications · 2025Article
- Resilient and Flexible Electrohydrodynamics Pumps for Human-Machine Interfaces.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Article
- Flexible electro-hydraulic power chips.Nature communications · 2025Article
- 3D-Printed Electrohydrodynamic Pump and Development of Anti-Swelling Organohydrogel for Soft Robotics.Advanced materials (Deerfield Beach, Fla.) · 2025Article
- Wireless Peristaltic Pump for Transporting Viscous Fluids and Solid Cargos in Confined Spaces.Advanced functional materials · 2024Article
- Untethered soft actuators for soft standalone robotics.Nature communications · 2024Review
- Pocketable and Smart Electrohydrodynamic Pump for Clothes.ACS applied materials & interfaces · 2024Article
- Exact and Computationally Robust Solutions for Cylindrical Magnets Systems with Programmable Magnetization.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2023Article
Corrections and comments
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Authors and funding
4 authors.
Funding
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Abstract
We use magnetohydrodynamic levitation as a means to create a soft, elastomeric, solenoid-driven pump (ESP). We present a theoretical framework and fabrication of a pump designed to address the unique challenges of soft robotics, maintaining pumping performance under deformation. Using a permanent magnet as a piston and ferrofluid as a liquid seal, we model and construct a deformable displacement pump. The magnet is driven back and forth along the length of a flexible core tube by a series of solenoids made of thin conductive wire. The magnet piston is kept concentric within the tube by Maxwell stresses within the ferrofluid and magnetohydrodynamic levitation, as viscous lift pressure is created due to its forward velocity. The centering of the magnet reduces shear stresses during pumping and improves efficiency. We provide a predictive model and capture the transient nonlinear dynamics of the magnet during operation, leading to a parametric performance curve characterizing the ESP, enabling goal-driven design. In our experimental validation, we report a shut-off pressure of 2 to 8 kPa and run-out flow rate of 50 to 320 mL⋅min
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