Source:http://linkedlifedata.com/resource/pubmed/id/18601363
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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
24
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| pubmed:dateCreated |
2008-7-8
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| pubmed:abstractText |
We present a high energy x-ray reflectivity study of the density profiles of water and ice at hydrophobic and hydrophilic substrates. At the hydrophobic water/octadecyl-trichlorosilane (water-OTS) interface, we find clear evidence for a thin density depletion layer with an integrated density deficit corresponding to approximately 40% of a monolayer of water molecules. We discuss the experimental results in terms of a simple model of hydrophobic/hydrophilic solid-liquid interfaces. Our results also exclude the presence of nanobubbles. A detailed study of possible radiation damage induced by the intense x-ray beam at the dry OTS surface and at the ice-OTS, as well as at water-OTS interfaces, discloses that noticeable damage is only induced at the water-OTS interface, and thus points to the dominant role of highly mobile radicals formed in bulk water close to the interface.
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| pubmed:language |
eng
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| pubmed:journal | |
| pubmed:status |
PubMed-not-MEDLINE
|
| pubmed:month |
Jun
|
| pubmed:issn |
1089-7690
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| pubmed:author | |
| pubmed:issnType |
Electronic
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| pubmed:day |
28
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| pubmed:volume |
128
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| pubmed:owner |
NLM
|
| pubmed:authorsComplete |
Y
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| pubmed:pagination |
244705
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| pubmed:year |
2008
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| pubmed:articleTitle |
Water and ice in contact with octadecyl-trichlorosilane functionalized surfaces: a high resolution x-ray reflectivity study.
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| pubmed:affiliation |
Max-Planck-Institut fur Metallforschung, Heisenbergstr. 3, D-70569 Stuttgart, Germany. mezger@mf.mpg.de
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| pubmed:publicationType |
Journal Article
|