Oscillatory Motion of Water Droplets Both in Oil and on Superhydrophobic Surface under Corona Discharge
Charged droplets driven by Coulomb force are an important part of a droplet-based micro reactor. In this study, we realized the rapid oscillatory motion of droplets both in oil and on superhydrophobic surface by injecting charges through corona discharge. Distinct from the oscillatory motion of wate...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-12-01
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| Series: | Micromachines |
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| Online Access: | https://www.mdpi.com/2072-666X/13/12/2229 |
| _version_ | 1797456228388962304 |
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| author | Qiang Tang Zongtang Zhang Jia-Han Zhang Feiran Tang Chengjun Wang Xiaxia Cui |
| author_facet | Qiang Tang Zongtang Zhang Jia-Han Zhang Feiran Tang Chengjun Wang Xiaxia Cui |
| author_sort | Qiang Tang |
| collection | DOAJ |
| description | Charged droplets driven by Coulomb force are an important part of a droplet-based micro reactor. In this study, we realized the rapid oscillatory motion of droplets both in oil and on superhydrophobic surface by injecting charges through corona discharge. Distinct from the oscillatory motion of water droplets under a DC electric field, charge injection can make the motion of water droplets more flexible. A droplet in the oil layer can move up and down regularly under the action of corona discharge, and the discharge voltage can control the movement period and height of the droplet. In addition, the left–right translation of droplets on a superhydrophobic surface can be achieved by injecting charges into the hydrophobic film surface through corona discharge. Two kinds of droplet motion behaviors are systematically analyzed, and the mechanism of droplet motion is explained. The present results could help establish new approaches to designing efficient machines in microfluidics and micromechanical equipment. |
| first_indexed | 2024-03-09T16:05:13Z |
| format | Article |
| id | doaj.art-766042fa5d6a40dea52203b603a4e170 |
| institution | Directory Open Access Journal |
| issn | 2072-666X |
| language | English |
| last_indexed | 2024-03-09T16:05:13Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Micromachines |
| spelling | doaj.art-766042fa5d6a40dea52203b603a4e1702023-11-24T16:46:21ZengMDPI AGMicromachines2072-666X2022-12-011312222910.3390/mi13122229Oscillatory Motion of Water Droplets Both in Oil and on Superhydrophobic Surface under Corona DischargeQiang Tang0Zongtang Zhang1Jia-Han Zhang2Feiran Tang3Chengjun Wang4Xiaxia Cui5School of Artificial Intelligence, Anhui University of Science and Technology, Huainan 232000, ChinaSchool of Artificial Intelligence, Anhui University of Science and Technology, Huainan 232000, ChinaCollaborative Innovation Center of Advanced Microstructures, School of Electronic Science and Engineering, Nanjing University, Nanjing 210093, ChinaSchool of Power and Mechanical Engineering, Wuhan University, Wuhan 430072, ChinaSchool of Artificial Intelligence, Anhui University of Science and Technology, Huainan 232000, ChinaSchool of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232000, ChinaCharged droplets driven by Coulomb force are an important part of a droplet-based micro reactor. In this study, we realized the rapid oscillatory motion of droplets both in oil and on superhydrophobic surface by injecting charges through corona discharge. Distinct from the oscillatory motion of water droplets under a DC electric field, charge injection can make the motion of water droplets more flexible. A droplet in the oil layer can move up and down regularly under the action of corona discharge, and the discharge voltage can control the movement period and height of the droplet. In addition, the left–right translation of droplets on a superhydrophobic surface can be achieved by injecting charges into the hydrophobic film surface through corona discharge. Two kinds of droplet motion behaviors are systematically analyzed, and the mechanism of droplet motion is explained. The present results could help establish new approaches to designing efficient machines in microfluidics and micromechanical equipment.https://www.mdpi.com/2072-666X/13/12/2229corona dischargeoscillatory motionelectrohydrodynamic behavior of water droplet |
| spellingShingle | Qiang Tang Zongtang Zhang Jia-Han Zhang Feiran Tang Chengjun Wang Xiaxia Cui Oscillatory Motion of Water Droplets Both in Oil and on Superhydrophobic Surface under Corona Discharge Micromachines corona discharge oscillatory motion electrohydrodynamic behavior of water droplet |
| title | Oscillatory Motion of Water Droplets Both in Oil and on Superhydrophobic Surface under Corona Discharge |
| title_full | Oscillatory Motion of Water Droplets Both in Oil and on Superhydrophobic Surface under Corona Discharge |
| title_fullStr | Oscillatory Motion of Water Droplets Both in Oil and on Superhydrophobic Surface under Corona Discharge |
| title_full_unstemmed | Oscillatory Motion of Water Droplets Both in Oil and on Superhydrophobic Surface under Corona Discharge |
| title_short | Oscillatory Motion of Water Droplets Both in Oil and on Superhydrophobic Surface under Corona Discharge |
| title_sort | oscillatory motion of water droplets both in oil and on superhydrophobic surface under corona discharge |
| topic | corona discharge oscillatory motion electrohydrodynamic behavior of water droplet |
| url | https://www.mdpi.com/2072-666X/13/12/2229 |
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