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231223s2010 xx |||||o 00| ||eng c |
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|a 10.1021/la102958w
|2 doi
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|a pubmed24n0671.xml
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|a (DE-627)NLM201223236
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|a (NLM)20804171
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Accardo, Angelo
|e verfasserin
|4 aut
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| 245 |
1 |
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|a In situ X-ray scattering studies of protein solution droplets drying on micro- and nanopatterned superhydrophobic PMMA surfaces
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|c 2010
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| 336 |
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|a Text
|b txt
|2 rdacontent
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| 337 |
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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 04.01.2011
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|a Date Revised 14.09.2010
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|a published: Print
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|a Citation Status MEDLINE
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|a Superhydrophobic poly(methyl methacrylate) surfaces with contact angles of ∼170° and high optical and X-ray transparencies have been fabricated through the use of optical lithography and plasma etching. The surfaces contain either a microscale pattern of micropillars or a random nanofibrillar pattern. Nanoscale asperities on top of the micropillars closely resemble Nelumbo nucifera lotus leaves. The evolution of the contact angle of water and lysozyme solution droplets during evaporation was studied on the micro- and nanopatterned surfaces, showing in particular contact-line pinning for the protein solution droplet on the nanopatterned surface. The microstructural evolution of lysozyme solution droplets was studied on both types of surfaces in situ under nearly contact-free conditions by synchrotron radiation microbeam wide-angle and small-angle X-ray scattering revealing the increasing protein concentration and the onset of precipitation. The solid residuals show hollow sphere morphologies. Rastermicrodiffraction of the detached residuals suggests about a 1/3 volume fraction of ≥17 nm lysozyme nanocrystalline domains and about a 2/3 short-range-order volume fraction. About 5-fold larger nanocrystalline domains were observed at the attachment points of the sphere to the substrates, which is attributed to particle growth in a shear flow. Such surfaces represent nearly contact-free sample supports for studies of inorganic and organic solution droplets, which find applications in biochips
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|a Journal Article
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|a Solutions
|2 NLM
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|a Polymethyl Methacrylate
|2 NLM
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| 650 |
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7 |
|a 9011-14-7
|2 NLM
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| 650 |
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7 |
|a Muramidase
|2 NLM
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| 650 |
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7 |
|a EC 3.2.1.17
|2 NLM
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| 700 |
1 |
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|a Gentile, Francesco
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Mecarini, Federico
|e verfasserin
|4 aut
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| 700 |
1 |
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|a De Angelis, Francesco
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Burghammer, Manfred
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Di Fabrizio, Enzo
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Riekel, Christian
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 26(2010), 18 vom: 21. Sept., Seite 15057-64
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
1 |
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|g volume:26
|g year:2010
|g number:18
|g day:21
|g month:09
|g pages:15057-64
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| 856 |
4 |
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|u http://dx.doi.org/10.1021/la102958w
|3 Volltext
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