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Pseudo-Chemotactic Drifts of Artificial Microswimmers
- Source :
- Phys. Rev. E 92, 012114 (2015)
- Publication Year :
- 2015
-
Abstract
- We numerically investigate the motion of active artificial microswimmers diffusing in a fuel concentration gradient. We observe that, in the steady state, their probability density accumulates in the low-concentration regions, whereas a tagged swimmer drifts with velocity depending in modulus and orientation on how the concentration gradient affects the self-propulsion mechanism. Under most experimentally accessible conditions, the particle drifts toward the high-concentration regions (pseudo-chemotactic drift). A correct interpretation of experimental data must account for such an "anti-Fickian" behavior.<br />Comment: 6 pages
- Subjects :
- Condensed Matter - Soft Condensed Matter
Subjects
Details
- Database :
- arXiv
- Journal :
- Phys. Rev. E 92, 012114 (2015)
- Publication Type :
- Report
- Accession number :
- edsarx.1506.07398
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1103/PhysRevE.92.012114