Shear Migration of Chiral Particle in Parallel-Disk
Abstract
The migration of chiral particles in shear flow is studied by parallel disk rotational rheometer. The chiral particles, made of silicon rubber with its two edges cut, are placed between the disks. When the disk rotates, the chiral particles move not only along the flow direction, but also migrate along the direction perpendicular to the flow (i.e., the radial direction). The migration direction, inner or outer, is determined by the handedness of the particle. This is the first experiment to show that the chiral particles can be separated by the velocity gradient field. The migration velocity is measured as a function of the shear rate, and compared with the result of simulation.
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Fluid flows can discriminate not only large chiral objects, but also helical bacteria, colloidal particles, and supramolecular aggregates.
“A few experimental reports indicate that fluid flows can discriminate not only large chiral objects, 140-142 but also helical bacteria, 143 colloidal particles, 144 and supramolecular aggregates.145,146”
From Possible chemical and physical scenarios towards biological homochirality (2022) · cites this paper as [142]
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Possible chemical and physical scenarios towards biological homochirality
Sallembien, Q., Bouteiller, L., Crassous, J., & Raynal, M. (2022) · Chemical Society Reviews · doi:10.1039/d1cs01179k · Cited by 186 · see citing works
Vortex flows impart chirality-specific lift forces
Hermans, T. M., Bishop, K. J. M., Stewart, P. S., Davis, S. H., & Grzybowski, B. A. (2015) · Nature Communications · doi:10.1038/ncomms6640 · Cited by 52 · see citing works
- Authors
- Makino, M., Arai, L., & Doi, M.
- Affiliations
- Japan Science and Technology Agency (JP)
- Venue
- Journal of the Physical Society of Japan
- Publisher
- Physical Society of Japan
- Published
- 2008-06-15
- Volume
- 77
- Issue
- 6
- Pages
- 064404
- ISSN
- 0031-9015 (ISSN-L)
- 1347-4073
- OpenAlex
- W2021581224
- Cited by
- 24
- References
- 0
- Citations by year
- 2026: 3 · 2022: 1 · 2021: 2 · 2020: 2 · 2019: 1 · 2016: 1 · 2015: 1 · 2013: 3 · 2012: 3
- FWCI
- 2.14
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of the Physical Society of Japan (publishedVersion)
- Funders
- Japan Science and Technology Agency
- Topics
- Physical Sciences › Chemical Engineering › Fluid Flow and Transfer Processes › Rheology and Fluid Dynamics Studies
- Physical Sciences › Engineering › Biomedical Engineering › Microfluidic and Bio-sensing Technologies
- Physical Sciences › Physics and Astronomy › Condensed Matter Physics › Micro and Nano Robotics
- Keywords
- chiral particles, shear flow, particle separation, handedness, velocity gradient, shear rate dependence, enantiomer separation
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