Critical conditions for jumping droplets
A droplet initially overstretched on a solid substrate pulls back to lower the contact area and may jump away from the substrate. The condition to realize such macroscopic behaviors is often dictated by microscopic characteristics, such as contact-line pinning, in nontrivial ways. Here we theoretica...
| Main Authors: | , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2019
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/106409 http://hdl.handle.net/10220/49632 |
| _version_ | 1811683127141072896 |
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| author | Vo, Quoc Tran, Tuan |
| author2 | School of Mechanical and Aerospace Engineering |
| author_facet | School of Mechanical and Aerospace Engineering Vo, Quoc Tran, Tuan |
| author_sort | Vo, Quoc |
| collection | NTU |
| description | A droplet initially overstretched on a solid substrate pulls back to lower the contact area and may jump away from the substrate. The condition to realize such macroscopic behaviors is often dictated by microscopic characteristics, such as contact-line pinning, in nontrivial ways. Here we theoretically and experimentally reveal the hidden contribution of contact-line pinning in forming the critical condition for detachment of a droplet from a solid substrate, among other dominating hydrodynamical effects. Our results demonstrate the relation between classical theories on contact-line pinning and various droplet manipulating applications in microfluidics and bioprinting. |
| first_indexed | 2024-10-01T04:07:47Z |
| format | Journal Article |
| id | ntu-10356/106409 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:07:47Z |
| publishDate | 2019 |
| record_format | dspace |
| spelling | ntu-10356/1064092023-03-04T17:22:37Z Critical conditions for jumping droplets Vo, Quoc Tran, Tuan School of Mechanical and Aerospace Engineering Engineering::Mechanical engineering Contact Line Dynamics Drop Interactions A droplet initially overstretched on a solid substrate pulls back to lower the contact area and may jump away from the substrate. The condition to realize such macroscopic behaviors is often dictated by microscopic characteristics, such as contact-line pinning, in nontrivial ways. Here we theoretically and experimentally reveal the hidden contribution of contact-line pinning in forming the critical condition for detachment of a droplet from a solid substrate, among other dominating hydrodynamical effects. Our results demonstrate the relation between classical theories on contact-line pinning and various droplet manipulating applications in microfluidics and bioprinting. ASTAR (Agency for Sci., Tech. and Research, S’pore) Published version 2019-08-14T07:38:01Z 2019-12-06T22:11:02Z 2019-08-14T07:38:01Z 2019-12-06T22:11:02Z 2019 Journal Article Vo, Q., & Tran, T. (2019). Critical conditions for jumping droplets. Physical Review Letters, 123(2), 024502-. doi:10.1103/PhysRevLett.123.024502 0031-9007 https://hdl.handle.net/10356/106409 http://hdl.handle.net/10220/49632 10.1103/PhysRevLett.123.024502 en Physical Review Letters © 2019 American Physical Society. All rights reserved. This paper was published in Physical Review Letters and is made available with permission of American Physical Society. 5 p. application/pdf |
| spellingShingle | Engineering::Mechanical engineering Contact Line Dynamics Drop Interactions Vo, Quoc Tran, Tuan Critical conditions for jumping droplets |
| title | Critical conditions for jumping droplets |
| title_full | Critical conditions for jumping droplets |
| title_fullStr | Critical conditions for jumping droplets |
| title_full_unstemmed | Critical conditions for jumping droplets |
| title_short | Critical conditions for jumping droplets |
| title_sort | critical conditions for jumping droplets |
| topic | Engineering::Mechanical engineering Contact Line Dynamics Drop Interactions |
| url | https://hdl.handle.net/10356/106409 http://hdl.handle.net/10220/49632 |
| work_keys_str_mv | AT voquoc criticalconditionsforjumpingdroplets AT trantuan criticalconditionsforjumpingdroplets |