Self‐Propulsion and Shear Flow Align Active Particles in Nozzles and Channels
Active particles consume energy stored in the environment and convert it into mechanical motion. Many potential applications of these systems involve their flowing, extrusion, and deposition through channels and nozzles, such as targeted drug delivery and out‐of‐equilibrium self‐assembly. However, u...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2021-02-01
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| Series: | Advanced Intelligent Systems |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/aisy.202000178 |
| _version_ | 1818434096866525184 |
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| author | Leonardo Dominguez Rubio Mykhailo Potomkin Remmi Danae Baker Ayusman Sen Leonid Berlyand Igor S. Aranson |
| author_facet | Leonardo Dominguez Rubio Mykhailo Potomkin Remmi Danae Baker Ayusman Sen Leonid Berlyand Igor S. Aranson |
| author_sort | Leonardo Dominguez Rubio |
| collection | DOAJ |
| description | Active particles consume energy stored in the environment and convert it into mechanical motion. Many potential applications of these systems involve their flowing, extrusion, and deposition through channels and nozzles, such as targeted drug delivery and out‐of‐equilibrium self‐assembly. However, understanding their fundamental interactions with flow and boundaries remain incomplete. Herein, experimental and theoretical studies of hydrogen peroxide (H2O2) powered self‐propelled gold–platinum nanorods in parallel channels and nozzles are conducted. The behaviors of active (self‐propelled) and passive rods are systematically compared. It is found that most active rods self‐align with the flow streamlines in areas with high shear and exhibit rheotaxis (swimming against the flow). In contrast, passive rods continue moving unaffected until the flow rate is very high, at which point they also start showing some alignment. The experimental results are rationalized by computational modeling delineating activity and rod‐flow interactions. The obtained results provide insight into the manipulation and control of active particle flow and extrusion in complex geometries. |
| first_indexed | 2024-12-14T16:31:34Z |
| format | Article |
| id | doaj.art-2d82f732ada04e77b8370687815e266f |
| institution | Directory Open Access Journal |
| issn | 2640-4567 |
| language | English |
| last_indexed | 2024-12-14T16:31:34Z |
| publishDate | 2021-02-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Intelligent Systems |
| spelling | doaj.art-2d82f732ada04e77b8370687815e266f2022-12-21T22:54:35ZengWileyAdvanced Intelligent Systems2640-45672021-02-0132n/an/a10.1002/aisy.202000178Self‐Propulsion and Shear Flow Align Active Particles in Nozzles and ChannelsLeonardo Dominguez Rubio0Mykhailo Potomkin1Remmi Danae Baker2Ayusman Sen3Leonid Berlyand4Igor S. Aranson5Department of Biomedical Engineering The Pennsylvania State University University Park PA 16802 USADepartment of Mathematics University of California Riverside CA 92521 USADepartment of Material Science and Engineering The Pennsylvania State University University Park PA 16802 USADepartment of Chemistry The Pennsylvania State University University Park PA 16802 USADepartment of Mathematics The Pennsylvania State University University Park PA 16802 USADepartment of Biomedical Engineering The Pennsylvania State University University Park PA 16802 USAActive particles consume energy stored in the environment and convert it into mechanical motion. Many potential applications of these systems involve their flowing, extrusion, and deposition through channels and nozzles, such as targeted drug delivery and out‐of‐equilibrium self‐assembly. However, understanding their fundamental interactions with flow and boundaries remain incomplete. Herein, experimental and theoretical studies of hydrogen peroxide (H2O2) powered self‐propelled gold–platinum nanorods in parallel channels and nozzles are conducted. The behaviors of active (self‐propelled) and passive rods are systematically compared. It is found that most active rods self‐align with the flow streamlines in areas with high shear and exhibit rheotaxis (swimming against the flow). In contrast, passive rods continue moving unaffected until the flow rate is very high, at which point they also start showing some alignment. The experimental results are rationalized by computational modeling delineating activity and rod‐flow interactions. The obtained results provide insight into the manipulation and control of active particle flow and extrusion in complex geometries.https://doi.org/10.1002/aisy.202000178active mattersbio-inspiredmicrofluidicsmicroscopic nozzlesself-propelled colloidssmart additives |
| spellingShingle | Leonardo Dominguez Rubio Mykhailo Potomkin Remmi Danae Baker Ayusman Sen Leonid Berlyand Igor S. Aranson Self‐Propulsion and Shear Flow Align Active Particles in Nozzles and Channels Advanced Intelligent Systems active matters bio-inspired microfluidics microscopic nozzles self-propelled colloids smart additives |
| title | Self‐Propulsion and Shear Flow Align Active Particles in Nozzles and Channels |
| title_full | Self‐Propulsion and Shear Flow Align Active Particles in Nozzles and Channels |
| title_fullStr | Self‐Propulsion and Shear Flow Align Active Particles in Nozzles and Channels |
| title_full_unstemmed | Self‐Propulsion and Shear Flow Align Active Particles in Nozzles and Channels |
| title_short | Self‐Propulsion and Shear Flow Align Active Particles in Nozzles and Channels |
| title_sort | self propulsion and shear flow align active particles in nozzles and channels |
| topic | active matters bio-inspired microfluidics microscopic nozzles self-propelled colloids smart additives |
| url | https://doi.org/10.1002/aisy.202000178 |
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