Colloidal trains
| Autor: | Mahla Mirzaee-Kakhki, Adrian Ernst, Daniel de las Heras, Maciej Urbaniak, Feliks Stobiecki, Andreea Tomita, Rico Huhnstock, Iris Koch, Jendrik Gördes, Arno Ehresmann, Dennis Holzinger, Meike Reginka, Thomas M. Fischer |
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| Rok vydání: | 2020 |
| Předmět: |
endocrine system
digestive oral and skin physiology FOS: Physical sciences 02 engineering and technology General Chemistry Condensed Matter - Soft Condensed Matter equipment and supplies 021001 nanoscience & nanotechnology Condensed Matter Physics complex mixtures 01 natural sciences Condensed Matter::Soft Condensed Matter 0103 physical sciences Soft Condensed Matter (cond-mat.soft) 010306 general physics 0210 nano-technology human activities |
| Zdroj: | Soft Matter. 16:1594-1598 |
| ISSN: | 1744-6848 1744-683X |
| DOI: | 10.1039/c9sm02261a |
| Popis: | Single and double paramagnetic colloidal particles are placed above a magnetic square pattern and are driven with an external magnetic field processing around a high symmetry direction of the pattern. The external magnetic field and that of the pattern confine the colloids into lanes parallel to a lattice vector of the pattern. The precession of the external field causes traveling minima of the magnetic potential along the direction of the lanes. At sufficiently high frequencies of modulation, only the doublets respond to the external field and move in direction of the traveling minima along the lanes, while the single colloids cannot follow and remain static. We show how the doublets can induce a coordinated motion of the single colloids building colloidal trains made of a chain of several single colloids transported by doublets. |
| Databáze: | OpenAIRE |
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