Dynamics of individual Brownian rods in a microchannel flow
We study the orientational dynamics of heavy silica microrods flowing through a microfluidic channel. Comparing experiments and Brownian dynamics simulations we identify different particle orbits, in particular in-plane tumbling behavior, which cannot be explained by classical Jeffery theory, and we...
| Egile Nagusiak: | , , , , , |
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| Formatua: | Journal article |
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Royal Society of Chemistry
2019
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| _version_ | 1826290984451833856 |
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| author | Zöttl, A Klop, K Balin, A Gao, Y Yeomans, J Aarts, D |
| author_facet | Zöttl, A Klop, K Balin, A Gao, Y Yeomans, J Aarts, D |
| author_sort | Zöttl, A |
| collection | OXFORD |
| description | We study the orientational dynamics of heavy silica microrods flowing through a microfluidic channel. Comparing experiments and Brownian dynamics simulations we identify different particle orbits, in particular in-plane tumbling behavior, which cannot be explained by classical Jeffery theory, and we relate this behavior to the rotational diffusion of the rods. By constructing the full, three-dimensional, orientation distribution, we describe the rod trajectories and quantify the persistence of Jeffery orbits using temporal correlation functions of the Jeffery constant. We find that our colloidal rods lose memory of their initial configuration in about a second, corresponding to half a Jeffery period. |
| first_indexed | 2024-03-07T02:52:33Z |
| format | Journal article |
| id | oxford-uuid:ae2a6e64-fff0-4657-9e07-a8ff9e332adc |
| institution | University of Oxford |
| last_indexed | 2024-03-07T02:52:33Z |
| publishDate | 2019 |
| publisher | Royal Society of Chemistry |
| record_format | dspace |
| spelling | oxford-uuid:ae2a6e64-fff0-4657-9e07-a8ff9e332adc2022-03-27T03:40:47ZDynamics of individual Brownian rods in a microchannel flowJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:ae2a6e64-fff0-4657-9e07-a8ff9e332adcSymplectic Elements at OxfordRoyal Society of Chemistry2019Zöttl, AKlop, KBalin, AGao, YYeomans, JAarts, DWe study the orientational dynamics of heavy silica microrods flowing through a microfluidic channel. Comparing experiments and Brownian dynamics simulations we identify different particle orbits, in particular in-plane tumbling behavior, which cannot be explained by classical Jeffery theory, and we relate this behavior to the rotational diffusion of the rods. By constructing the full, three-dimensional, orientation distribution, we describe the rod trajectories and quantify the persistence of Jeffery orbits using temporal correlation functions of the Jeffery constant. We find that our colloidal rods lose memory of their initial configuration in about a second, corresponding to half a Jeffery period. |
| spellingShingle | Zöttl, A Klop, K Balin, A Gao, Y Yeomans, J Aarts, D Dynamics of individual Brownian rods in a microchannel flow |
| title | Dynamics of individual Brownian rods in a microchannel flow |
| title_full | Dynamics of individual Brownian rods in a microchannel flow |
| title_fullStr | Dynamics of individual Brownian rods in a microchannel flow |
| title_full_unstemmed | Dynamics of individual Brownian rods in a microchannel flow |
| title_short | Dynamics of individual Brownian rods in a microchannel flow |
| title_sort | dynamics of individual brownian rods in a microchannel flow |
| work_keys_str_mv | AT zottla dynamicsofindividualbrownianrodsinamicrochannelflow AT klopk dynamicsofindividualbrownianrodsinamicrochannelflow AT balina dynamicsofindividualbrownianrodsinamicrochannelflow AT gaoy dynamicsofindividualbrownianrodsinamicrochannelflow AT yeomansj dynamicsofindividualbrownianrodsinamicrochannelflow AT aartsd dynamicsofindividualbrownianrodsinamicrochannelflow |