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Self-Motility of an Active Particle Induced by Correlations in the Surrounding Solution.
- Source :
-
Physical review letters [Phys Rev Lett] 2020 Dec 31; Vol. 125 (26), pp. 268002. - Publication Year :
- 2020
-
Abstract
- Current models of phoretic transport rely on molecular forces creating a "diffuse" particle-fluid interface. We investigate theoretically an alternative mechanism, in which a diffuse interface emerges solely due to a nonvanishing correlation length of the surrounding solution. This mechanism can drive self-motility of a chemically active particle. Numerical estimates indicate that the velocity can reach micrometers per second. The predicted phenomenology includes a bilinear dependence of the velocity on the activity and a possible double velocity reversal upon varying the correlation length.
Details
- Language :
- English
- ISSN :
- 1079-7114
- Volume :
- 125
- Issue :
- 26
- Database :
- MEDLINE
- Journal :
- Physical review letters
- Publication Type :
- Academic Journal
- Accession number :
- 33449719
- Full Text :
- https://doi.org/10.1103/PhysRevLett.125.268002