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dc.contributor.author
Hong, Sun O.
dc.contributor.author
Park, Ki-Su
dc.contributor.author
Kim, Dong-Yeong
dc.contributor.author
Lee, Sung Sik
dc.contributor.author
Lee, Chang-Soo
dc.contributor.author
Kim, Ju M.
dc.date.accessioned
2021-02-25T11:04:00Z
dc.date.available
2021-02-24T09:50:31Z
dc.date.available
2021-02-25T11:04:00Z
dc.date.issued
2021-02-07
dc.identifier.issn
1473-0197
dc.identifier.issn
1473-0189
dc.identifier.other
10.1039/d0lc00834f
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/471289
dc.description.abstract
Mixing in microscale flows, where turbulence is inherently difficult to generate, has been a challenging issue owing to its laminar flow characteristics. Either the diffusion-based mixing process, or the convective mixing based on the cross-stream secondary flow, has been exploited as a passive mixing scheme that does not require any external force field. However, these techniques suffer from insufficient mixing or complicated channel design step. In this study, we propose an efficient mixing scheme by combining inertio-elastic flow instability in a viscoelastic dilute polymer solution and a modified serpentine channel, termed a gear-shape channel, which has side wells along the serpentine channel. We achieved highly efficient mixing in the gear-shaped channel for a significantly wider range of flow rates than in a conventional serpentine channel. Further, we applied our novel mixing scheme to the continuous synthesis of silica nanoparticles, which demonstrated the synthesis of nanoparticles with more uniform size distribution and regular shape, than those in a Newtonian fluid. In addition, the adsorption of inorganic materials on the channel walls was significantly suppressed by the flow instability of the viscoelastic dilute polymer solution in the gear-shaped channel. © The Royal Society of Chemistry 2020
en_US
dc.language.iso
en
en_US
dc.publisher
Royal Society of Chemistry
en_US
dc.title
Gear-shaped micromixer for synthesis of silica particles utilizing inertio-elastic flow instability
en_US
dc.type
Journal Article
dc.date.published
2020-12-21
ethz.journal.title
Lab on a Chip
ethz.journal.volume
21
en_US
ethz.journal.issue
3
en_US
ethz.journal.abbreviated
Lab chip
ethz.pages.start
513
en_US
ethz.pages.end
520
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
Cambridge
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00003 - Schulleitung und Dienste::00022 - Bereich VP Forschung / Domain VP Research::02891 - ScopeM / ScopeM
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00003 - Schulleitung und Dienste::00022 - Bereich VP Forschung / Domain VP Research::02891 - ScopeM / ScopeM
ethz.date.deposited
2021-02-24T09:50:54Z
ethz.source
SCOPUS
ethz.eth
yes
en_US
ethz.availability
Metadata only
en_US
ethz.rosetta.installDate
2021-02-25T11:04:12Z
ethz.rosetta.lastUpdated
2022-03-29T05:27:37Z
ethz.rosetta.versionExported
true
ethz.COinS
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