ArticleBiomicrofluidics2011
Three-dimensional diamagnetic particle deflection in ferrofluid microchannel flows.
Article in Biomicrofluidics, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed.
- Power-free plasma separation based on negative magnetophoresis for rapid biochemical analysis.Microsystems & nanoengineering · 2024Article
- Recent Advances in Continuous-Flow Particle Manipulations Using Magnetic Fluids.Micromachines · 2019Review
- Magnetic control of graphitic microparticles in aqueous solutions.Proceedings of the National Academy of Sciences of the United States of America · 2019Article
- Label-Free Microfluidic Manipulation of Particles and Cells in Magnetic Liquids.Advanced functional materials · 2016Article
- Label-Free and Continuous-Flow Ferrohydrodynamic Separation of HeLa Cells and Blood Cells in Biocompatible Ferrofluids.Advanced functional materials · 2016Article
- Magnetic Trapping of Bacteria at Low Magnetic Fields.Scientific reports · 2016Article
- Multiphase ferrofluid flows for micro-particle focusing and separation.Biomicrofluidics · 2016Article
- Simultaneous diamagnetic and magnetic particle trapping in ferrofluid microflows via a single permanent magnet.Biomicrofluidics · 2015Article
- Viscoelastic effects on electrokinetic particle focusing in a constricted microchannel.Biomicrofluidics · 2015Article
- Improving intranasal delivery of neurological nanomedicine to the olfactory region using magnetophoretic guidance of microsphere carriers.International journal of nanomedicine · 2015Article
- On-chip microfluidic biosensor using superparamagnetic microparticles.Biomicrofluidics · 2013Article
- Continuous-flow Ferrohydrodynamic Sorting of Particles and Cells in Microfluidic Devices.Microfluidics and nanofluidics · 2012Article
- Continuous sheath-free magnetic separation of particles in a U-shaped microchannel.Biomicrofluidics · 2012Article
Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Magnetic field-induced particle manipulation is a promising technique for biomicrofluidics applications. It is simple, cheap, and also free of fluid heating issues that accompany other common electric, acoustic, and optical methods. This work presents a fundamental study of diamagnetic particle motion in ferrofluid flows through a rectangular microchannel with a nearby permanent magnet. Due to their negligible magnetization relative to the ferrofluid, diamagnetic particles experience negative magnetophoresis and are repelled away from the magnet. The result is a three-dimensionally focused particle stream flowing near the bottom outer corner of the microchannel that is the farthest to the center of the magnet and hence has the smallest magnetic field. The effects of the particle's relative position to the magnet, particle size, ferrofluid flow rate, and concentration on this three-dimensional diamagnetic particle deflection are systematically studied. The obtained experimental results agree quantitatively with the predictions of a three-dimensional analytical model.
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Registered trials
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