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231225s2018 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.8b02266
|2 doi
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|a pubmed24n0959.xml
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|a (DE-627)NLM287943593
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|a (NLM)30156419
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Eickelmann, Stephan
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Meniscus Shape around Nanoparticles Embedded in Molecularly Thin Liquid Films
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|c 2018
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|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 26.11.2018
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|a Date Revised 26.11.2018
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Individual nanoparticles embedded in molecularly thin films at planar substrates and the resulting film surface distortion (meniscus) adjacent to the nanoparticles are investigated by conventional optical reflection microscopy. Even for nanoparticles much smaller than the Rayleigh diffraction limit, the meniscus creates such a pronounced optical footprint that the location of the nanoparticles can be identified. This is because the decay length (lateral extension) of the meniscus exceeds the size of the nanoparticle by orders of magnitude. Therefore, for the first time, the exact shape of the meniscus of the liquid adjacent to a nanosize object could be measured and analyzed. The meniscus has a zero curvature shape (cosine hyperbolic). The liquid in the meniscus is in pressure equilibrium with the far-field planar film. The decay length decreases with the decreasing nanoparticle size. However, it is independent of the far-field film thickness. Supposedly, the decay length is determined by van der Waals interactions although it is unknown what determines its (unexpectedly large) absolute value. The presented technical approach may be used to investigate biological systems (for instance, surface distortions in supported membranes caused by proteins or protein aggregates)
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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| 700 |
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|a Danglad-Flores, José
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Chen, Guoxiang
|e verfasserin
|4 aut
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| 700 |
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|a Miettinen, Markus S
|e verfasserin
|4 aut
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| 700 |
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|a Riegler, Hans
|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 1992
|g 34(2018), 38 vom: 25. Sept., Seite 11364-11373
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:34
|g year:2018
|g number:38
|g day:25
|g month:09
|g pages:11364-11373
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|u http://dx.doi.org/10.1021/acs.langmuir.8b02266
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