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231224s2015 xx |||||o 00| ||eng c |
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|a 10.1021/la5046139
|2 doi
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|a eng
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| 100 |
1 |
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|a Rieser, Jennifer M
|e verfasserin
|4 aut
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|a Tunable capillary-induced attraction between vertical cylinders
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|c 2015
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Completed 21.05.2015
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|a Date Revised 03.03.2015
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Deformation of a fluid interface caused by the presence of objects at the interface can lead to large lateral forces between objects. We explore these fluid-mediated attractive force between partially submerged vertical cylinders. Forces are experimentally measured by slowly separating cylinder pairs and cylinder triplets after capillary rise is initially established for cylinders in contact. For cylinder pairs, numerical computations and a theoretical model are found to be in good agreement with measurements. The model provides insight into the relative importance of the contributions to the total force. For small separations, the lateral force is dominated by the fluid pressure acting over the wetted cylinder surfaces. At large separations, the surface tension acting along the contact line dominates the lateral force. A crossover between the two regimes occurs at a separation of around half of a capillary length. The experimentally measured forces between cylinder triplets are also in good agreement with numerical computations, and we show that pairwise contributions account for nearly all of the attractive force between triplets. For cylinders with an equilibrium capillary rise height greater than the height of the cylinder, we find that the attractive force depends on the height of the cylinders above the submersion level, which provides a means to create precisely controlled tunable cohesive forces between objects deforming a fluid interface
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|a Journal Article
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1 |
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|a Arratia, P E
|e verfasserin
|4 aut
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1 |
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|a Yodh, A G
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Gollub, J P
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Durian, D J
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1985
|g 31(2015), 8 vom: 03. März, Seite 2421-9
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
1 |
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|g volume:31
|g year:2015
|g number:8
|g day:03
|g month:03
|g pages:2421-9
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| 856 |
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|u http://dx.doi.org/10.1021/la5046139
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