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| Main Authors: | , , , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2505.00141 |
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| _version_ | 1866916715710906368 |
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| author | Ramteke, Sandeep Dehmel, Jordan Miloh, Touvia Schiffbauer, Jarrod Boymelgreen, Alicia |
| author_facet | Ramteke, Sandeep Dehmel, Jordan Miloh, Touvia Schiffbauer, Jarrod Boymelgreen, Alicia |
| contents | Most active colloid experiments are quasi-2D. Here a 3D density-matched solution of active particles propelled and aligned with an AC electric field uniquely facilitates measurement of short and long-range particle-wall interactions. Near-wall mobility is reduced by Stokes drag and local electric-field distortion. Long-range attractions concentrate particles at upper and lower walls at a ratio dependent on particle orientation and rate proportional to speed and confinement. This approach may be extended to other active systems to understand particle-wall interactions and non-equilibrium phenomena. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_00141 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Expanding Active Matter to the Third Dimension: Exploring Short and Long-Range Particle-Wall Interactions Ramteke, Sandeep Dehmel, Jordan Miloh, Touvia Schiffbauer, Jarrod Boymelgreen, Alicia Soft Condensed Matter Most active colloid experiments are quasi-2D. Here a 3D density-matched solution of active particles propelled and aligned with an AC electric field uniquely facilitates measurement of short and long-range particle-wall interactions. Near-wall mobility is reduced by Stokes drag and local electric-field distortion. Long-range attractions concentrate particles at upper and lower walls at a ratio dependent on particle orientation and rate proportional to speed and confinement. This approach may be extended to other active systems to understand particle-wall interactions and non-equilibrium phenomena. |
| title | Expanding Active Matter to the Third Dimension: Exploring Short and Long-Range Particle-Wall Interactions |
| topic | Soft Condensed Matter |
| url | https://arxiv.org/abs/2505.00141 |