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Bubble Driven Quasioscillatory Translational Motion of Catalytic Micromotors.
- Source :
-
Physical Review Letters . 9/21/2012, Vol. 109 Issue 12, p1-5. 5p. - Publication Year :
- 2012
-
Abstract
- A new quasioscillatory translational motion has been observed for big Janus catalytic micromotors with a fast CCD camera. Such motional behavior is found to coincide with both the bubble growth and burst processes resulting from the catalytic reaction, and the competition of the two processes generates a net forward motion. Detailed physical models have been proposed to describe the above processes. It is suggested that the bubble growth process imposes a growth force moving the micromotor forward, while the burst process induces an instantaneous local pressure depression pulling the micromotor backward. The theoretic predictions are consistent with the experimental data. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00319007
- Volume :
- 109
- Issue :
- 12
- Database :
- Academic Search Index
- Journal :
- Physical Review Letters
- Publication Type :
- Academic Journal
- Accession number :
- 82592330
- Full Text :
- https://doi.org/10.1103/PhysRevLett.109.128305