Interfacial propulsion by directional adhesion
The rough integument of water-walking arthropods is well-known to be responsible for their water-repellency [1], [2], [3] and [4]; however, water-repellent surfaces generally experience reduced traction at an air–water interface [5], [6], [7] and [8]. A conundrum then arises as to how such creatures...
| Main Authors: | , |
|---|---|
| Other Authors: | |
| Format: | Article |
| Language: | en_US |
| Published: |
Elsevier
2015
|
| Online Access: | http://hdl.handle.net/1721.1/99431 https://orcid.org/0000-0002-7936-7256 |
| _version_ | 1826214423174316032 |
|---|---|
| author | Prakash, Manu Bush, John W. M. |
| author2 | Massachusetts Institute of Technology. Department of Mathematics |
| author_facet | Massachusetts Institute of Technology. Department of Mathematics Prakash, Manu Bush, John W. M. |
| author_sort | Prakash, Manu |
| collection | MIT |
| description | The rough integument of water-walking arthropods is well-known to be responsible for their water-repellency [1], [2], [3] and [4]; however, water-repellent surfaces generally experience reduced traction at an air–water interface [5], [6], [7] and [8]. A conundrum then arises as to how such creatures generate significant propulsive forces while retaining their water-repellency. We here demonstrate through a series of experiments that they do so by virtue of the detailed form of their integument; specifically, their tilted, flexible hairs interact with the free surface to generate directionally anisotropic adhesive forces that facilitate locomotion. We thus provide new rationale for the fundamental topological difference in the roughness on plants and water-walking arthropods, and suggest new directions for the design and fabrication of unidirectional superhydrophobic surfaces. |
| first_indexed | 2024-09-23T16:05:06Z |
| format | Article |
| id | mit-1721.1/99431 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T16:05:06Z |
| publishDate | 2015 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | mit-1721.1/994312022-10-02T06:13:53Z Interfacial propulsion by directional adhesion Prakash, Manu Bush, John W. M. Massachusetts Institute of Technology. Department of Mathematics Bush, John W. M. The rough integument of water-walking arthropods is well-known to be responsible for their water-repellency [1], [2], [3] and [4]; however, water-repellent surfaces generally experience reduced traction at an air–water interface [5], [6], [7] and [8]. A conundrum then arises as to how such creatures generate significant propulsive forces while retaining their water-repellency. We here demonstrate through a series of experiments that they do so by virtue of the detailed form of their integument; specifically, their tilted, flexible hairs interact with the free surface to generate directionally anisotropic adhesive forces that facilitate locomotion. We thus provide new rationale for the fundamental topological difference in the roughness on plants and water-walking arthropods, and suggest new directions for the design and fabrication of unidirectional superhydrophobic surfaces. 2015-10-23T14:33:49Z 2015-10-23T14:33:49Z 2010-12 Article http://purl.org/eprint/type/JournalArticle 00207462 http://hdl.handle.net/1721.1/99431 Prakash, Manu, and John W.M. Bush. “Interfacial Propulsion by Directional Adhesion.” International Journal of Non-Linear Mechanics 46, no. 4 (May 2011): 607–615. https://orcid.org/0000-0002-7936-7256 en_US http://dx.doi.org/10.1016/j.ijnonlinmec.2010.12.003 International Journal of Non-Linear Mechanics Creative Commons Attribution-Noncommercial-NoDerivatives http://creativecommons.org/licenses/by-nc-nd/4.0/ application/pdf Elsevier PMC |
| spellingShingle | Prakash, Manu Bush, John W. M. Interfacial propulsion by directional adhesion |
| title | Interfacial propulsion by directional adhesion |
| title_full | Interfacial propulsion by directional adhesion |
| title_fullStr | Interfacial propulsion by directional adhesion |
| title_full_unstemmed | Interfacial propulsion by directional adhesion |
| title_short | Interfacial propulsion by directional adhesion |
| title_sort | interfacial propulsion by directional adhesion |
| url | http://hdl.handle.net/1721.1/99431 https://orcid.org/0000-0002-7936-7256 |
| work_keys_str_mv | AT prakashmanu interfacialpropulsionbydirectionaladhesion AT bushjohnwm interfacialpropulsionbydirectionaladhesion |