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231225s2018 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.8b00121
|2 doi
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|a pubmed25n0938.xml
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|a eng
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| 100 |
1 |
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|a Fang, Wei
|e verfasserin
|4 aut
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| 245 |
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|a Revisiting the Critical Condition for the Cassie-Wenzel Transition on Micropillar-Structured Surfaces
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|c 2018
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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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|2 rdacarrier
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| 500 |
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|a Date Completed 10.07.2018
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|a Date Revised 10.07.2018
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Biological and engineering applications of superhydrophobic surfaces are limited by the stability of the wetting state determined by the transition from the Cassie-Baxter state to the Wenzel state (C-W transition). In this paper, we performed water droplet squeeze tests to investigate the critical conditions for the C-W transition for solid surfaces with periodic micropillar arrays. The experimental results indicate that the critical transition pressures for the samples with varying micropillar dimensions are all significantly higher than the theoretical predictions. Through independent measurements, we attributed the disparity to the incorrect assessment of the contact angle on the sidewall surfaces of the micropillars. We also showed that the theoretical models are still applicable when the correct contact angle of the sidewall surfaces is adopted. Our work directly validates and improves the theoretical models regarding the C-W transition and suggests a potential route of tuning superhydrophobicity using finer scale surface features
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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| 700 |
1 |
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|a Guo, Hao-Yuan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Li, Bo
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Li, Qunyang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Feng, Xi-Qiao
|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 34(2018), 13 vom: 03. Apr., Seite 3838-3844
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|x 1520-5827
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| 773 |
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|g volume:34
|g year:2018
|g number:13
|g day:03
|g month:04
|g pages:3838-3844
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| 856 |
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|u http://dx.doi.org/10.1021/acs.langmuir.8b00121
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