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231224s2014 xx |||||o 00| ||eng c |
| 024 |
7 |
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|a 10.1021/la5022774
|2 doi
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|a pubmed24n0802.xml
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|a eng
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| 100 |
1 |
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|a Peng, Shuhua
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Microwetting of supported graphene on hydrophobic surfaces revealed by polymerized interfacial femtodroplets
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| 264 |
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|c 2014
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| 336 |
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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
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|2 rdacarrier
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| 500 |
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|a Date Completed 12.05.2015
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|a Date Revised 26.08.2014
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Understanding the wettability of graphene is the crucial step toward the design and control of graphene-based surface in contact with liquids. In this work, the static microwettability of a supported single layer graphene (SLG) immersed in water or alcoholic aqueous solutions is revealed by the morphological characterization of the polymerized interfacial femtoliter droplets. As expected, the contact angle of the femtoliter droplets on the SLG in water is in between that on the underlying silanized silicon and that on graphite (HOPG). However, the wettability of femtoliter droplets on the SLG demonstrates a unique dependence on the compositions of the surrounding liquid medium: Their contact angle on SLG becomes much larger than that on both graphite and on silanized silicon, once short-chain alcohol molecules are present in the surrounding medium. To account for this finding, we hypothesize two scenarios to rationalize the effect of alcohol on the microwettability on SLG. The understanding elucidated in this study may allow for improved control of the interaction between graphene and the surrounding liquid environment and facilitate applications in which graphene is in contact with liquids, such as in microfluidics and in lab-on-chip systems
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4 |
|a Journal Article
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1 |
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|a Lohse, Detlef
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhang, Xuehua
|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 30(2014), 33 vom: 26. Aug., Seite 10043-9
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|x 1520-5827
|7 nnns
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| 773 |
1 |
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|g volume:30
|g year:2014
|g number:33
|g day:26
|g month:08
|g pages:10043-9
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|u http://dx.doi.org/10.1021/la5022774
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