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231223s2010 xx |||||o 00| ||eng c |
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|a 10.1021/la1036212
|2 doi
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|a eng
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| 100 |
1 |
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|a Langley, Kevin R
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Microtextured surfaces with gradient wetting properties
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| 264 |
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|c 2010
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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| 500 |
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|a Date Completed 06.04.2011
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|a Date Revised 30.11.2010
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Patterned surfaces with microwrinkled surface structures were prepared by thermally evaporating thin aluminum (10-300 nm thick) (Al) layers onto thick prestrained layers of a silicone elastomer and subsequently releasing the strain. This resulted in the formation of sinusoidal periodic surface wrinkles with characteristic wavelengths in the 3-42 μm range and amplitudes as large as 3.6 ± 0.4 μm. The Al thickness dependence of the wrinkle wavelengths and amplitudes was determined for different values of the applied prestrain and compared to a recent large-amplitude deflection theory of wrinkle formation. The results were found to be in good agreement with theory. Samples with spatial gradients in wrinkle wavelength and amplitude were also produced by applying mechanical strain gradients to the silicone elastomer layers prior to deposition of the Al capping layers. Sessile water droplets that were placed on these surfaces were found to have contact angles that were dependent upon their position. Moreover, these samples were shown to direct the motion of small water droplets when the substrates were vibrated
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|a Journal Article
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| 700 |
1 |
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|a Sharp, James S
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 26(2010), 23 vom: 07. Dez., Seite 18349-56
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|x 1520-5827
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|g volume:26
|g year:2010
|g number:23
|g day:07
|g month:12
|g pages:18349-56
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|u http://dx.doi.org/10.1021/la1036212
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