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231224s2016 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.6b00092
|2 doi
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|a pubmed25n0861.xml
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|a DE-627
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|a eng
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|a Teschke, Omar
|e verfasserin
|4 aut
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|a Chiral Asymmetric Structures in Aspartic Acid and Valine Crystals Assessed by Atomic Force Microscopy
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|c 2016
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Completed 13.03.2017
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|a Date Revised 13.03.2017
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Structures of crystallized deposits formed by the molecular self-assembly of aspartic acid and valine on silicon substrates were imaged by atomic force microscopy. Images of d- and l-aspartic acid crystal surfaces showing extended molecularly flat sheets or regions separated by single molecule thick steps are presented. Distinct orientation surfaces were imaged, which, combined with the single molecule step size, defines the geometry of the crystal. However, single molecule step growth also reveals the crystal chirality, i.e., growth orientations. The imaged ordered lattice of aspartic acid (asp) and valine (val) mostly revealed periodicities corresponding to bulk terminations, but a previously unreported molecular hexagonal lattice configuration was observed for both l-asp and l-val but not for d-asp or d-val. Atomic force microscopy can then be used to identify the different chiral forms of aspartic acid and valine crystals
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|a Journal Article
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|a Aspartic Acid
|2 NLM
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|a 30KYC7MIAI
|2 NLM
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|a Valine
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|a HG18B9YRS7
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|a Silicon
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|a Z4152N8IUI
|2 NLM
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|a Soares, David Mendez
|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 32(2016), 12 vom: 29. März, Seite 2996-3003
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|x 1520-5827
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| 773 |
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|g volume:32
|g year:2016
|g number:12
|g day:29
|g month:03
|g pages:2996-3003
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|u http://dx.doi.org/10.1021/acs.langmuir.6b00092
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