Catalytically propelled 3D printed colloidal microswimmers
| Autor: | Rachel P. Doherty, Thijs Varkevisser, Stefania Ketzetzi, Daniela J. Kraft, Jonas Hoecht, Margot Teunisse, Samia Ouhajji |
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| Jazyk: | angličtina |
| Předmět: |
3d printed
Materials science business.industry 3D printing Nanotechnology 02 engineering and technology General Chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Mean squared displacement Active motion Colloid 0103 physical sciences 010306 general physics 0210 nano-technology business |
| Zdroj: | Soft Matter |
| ISSN: | 1744-6848 1744-683X |
| DOI: | 10.1039/d0sm01320j |
| Popis: | Synthetic microswimmers are widely employed model systems in the studies of out-of-equilibrium phenomena. Unlike biological microswimmers which naturally occur in various shapes and forms, synthetic microswimmers have so far been limited almost exclusively to spherical shapes. Here, we exploit 3D printing to produce microswimmers with complex shapes in the colloidal size regime. We establish the flexibility of 3D printing by two-photon polymerisation to produce particles smaller than 10 microns with a high-degree of shape complexity. We further demonstrate that 3D printing allows control over the location of the active site through orienting the particles in different directions during printing. We verify that particles behave colloidally by imaging their motion in the passive and active states and by investigating their mean square displacement. In addition, we find that particles exhibit shape-dependant behavior, thereby demonstrating the potential of our method to launch a wide-range of in-depth studies into shape-dependent active motion and behaviour. |
| Databáze: | OpenAIRE |
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