An Optically Driven Bistable Janus Rotor with Patterned Metal Coatings
Source abstract
Abstract
Bistable rotation is realized for a gold-coated Janus colloidal particle in an infrared optical trap. The metal coating on the Janus particles are patterned by sputtering gold on a monolayer of closely packed polystyrene particles. The Janus particle is observed to stably rotate in an optical trap. Both the direction and the rate of rotation can be experimentally controlled. Numerical calculations reveal that the bistable rotation is the result of spontaneous symmetry breaking induced by the uneven curvature of the coating patterns on the Janus sphere. Our results thus provide a simple method to construct large quantities of fully functional rotary motors for nano- or microdevices.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Micro and Nano Robotics · Orbital Angular Momentum in Optics · Pickering emulsions and particle stabilization
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Beijing National Laboratory for Condensed Matter Physics and Key Laboratory of Soft Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
Beijing National Laboratory for Condensed Matter Physics and Key Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
Funding
Central Committee of the Communist Party of China · Ministry of Science and Technology of the People's Republic of China · National Natural Science Foundation of China
References (44)
Show source-provided references
1. 10.1016/j.copbio.2011.11.03110.1016/j.copbio.2011.11.031 ↗
2. 10.1126/science.122673410.1126/science.1226734 ↗
3. 10.1038/msb.2009.510.1038/msb.2009.5 ↗
4. 10.1038/ncb145710.1038/ncb1457 ↗
5. 10.1038/nsmb.221610.1038/nsmb.2216 ↗
6. 10.1126/science.122957310.1126/science.1229573 ↗
7. 10.1021/ja904827j10.1021/ja904827j ↗
8. 10.1021/nn507097k10.1021/nn507097k ↗
9. 10.1021/nn506200x10.1021/nn506200x ↗
10. 10.1021/nn304335x10.1021/nn304335x ↗
11. 10.1039/C4NR03124E10.1039/C4NR03124E ↗
12. 10.1038/nchem.87210.1038/nchem.872 ↗
13. 10.1038/nnano.2012.21810.1038/nnano.2012.218 ↗
14. 10.1021/nn300413p10.1021/nn300413p ↗
15. 10.1021/nn302899710.1021/nn3028997 ↗
16. 10.1021/nl201273n10.1021/nl201273n ↗
17. 10.1002/adma.20100054210.1002/adma.201000542 ↗
18. 10.1039/C4NR03990D10.1039/C4NR03990D ↗
19. 10.1039/c3sm52417e10.1039/c3sm52417e ↗
20. 10.1063/1.490682310.1063/1.4906823 ↗
21. 10.1103/PhysRevLett.94.24720810.1103/PhysRevLett.94.247208 ↗
22. 10.1038/ncomms463210.1038/ncomms4632 ↗
23. 10.1073/pnas.120034210910.1073/pnas.1200342109 ↗
24. 10.1002/smll.20110190910.1002/smll.201101909 ↗
25. 10.1021/ja107234910.1021/ja1072349 ↗
26. 10.1021/nl900186w10.1021/nl900186w ↗
27. 10.1021/nl401081710.1021/nl4010817 ↗
28. 10.1021/nl403608a10.1021/nl403608a ↗
29. 10.1038/nphoton.2011.28710.1038/nphoton.2011.287 ↗
30. 10.1364/OL.23.00000110.1364/OL.23.000001 ↗
31. 10.1038/ncomms337410.1038/ncomms3374 ↗
32. 10.1038/2856610.1038/28566 ↗
33. 10.1038/nmat141110.1038/nmat1411 ↗
34. 10.1364/OE.20.01135110.1364/OE.20.011351 ↗
35. 10.1063/1.475146410.1063/1.4751464 ↗
36. 10.1038/nnano.2010.12810.1038/nnano.2010.128 ↗
37. 10.1063/1.11167510.1063/1.111675 ↗
38. 10.1039/c2sc21263c10.1039/c2sc21263c ↗
39. 10.1103/PhysRevLett.105.26830210.1103/PhysRevLett.105.268302 ↗
40. 10.1088/1367-2630/8/9/21610.1088/1367-2630/8/9/216 ↗
41. 10.1021/ma00214a01210.1021/ma00214a012 ↗
42. 10.1016/S0006-3495(92)81860-X10.1016/S0006-3495(92)81860-X ↗
43. 10.1038/nphys177610.1038/nphys1776 ↗
44. Pathria, R. K.; Beale, P. D.Statistical Mechanics,3rd ed.Elsevier:New York, 2011; pp412.