| Control of CaCO3 crystallization by demixing of monolayers. | |
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MedLine Citation:
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PMID: 17154582 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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In this paper we describe how to template a demixed monolayer into a spatially patterned inorganic replica. For this purpose a new amphiphilic monomer was synthesized which can be polymerized both in solution and in the monolayer of a Langmuir-Blodgett (LB) trough. Since it inhibits the crystallization of CaCO3, it can be used--in combination with stearic acid (nucleation-promotor)--to control CaCO3 crystals formed under the monolayer. Investigations of the two-component monolayer (Langmuir isotherms and AFM measurements of transferred films) show--in the biphasic region--demixing in solid analogue stearic acid domains and the liquid analogue phase of the monomer. Crystallization of CaCO3 starts under the stearic acid domains whose size varies from less than 100 nm to several tens of micrometers. The addition of poly(acrylic acid) into the subphase hinders the three-dimensional growth of CaCO3 crystals from the monolayer into the solution. Thus, it becomes possible to transfer the pattern of the demixed domains into an inorganic replica of CaCO3. |
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Authors:
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Holger Müller; Rudolf Zentel; Andreas Janshoff; Matthias Janke |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Langmuir : the ACS journal of surfaces and colloids Volume: 22 ISSN: 0743-7463 ISO Abbreviation: Langmuir Publication Date: 2006 Dec |
Date Detail:
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Created Date: 2006-12-12 Completed Date: 2007-01-26 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9882736 Medline TA: Langmuir Country: United States |
Other Details:
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Languages: eng Pagination: 11034-40 Citation Subset: IM |
Affiliation:
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Institutes of Organic Chemistry, Duesbergweg 10-14, Johannes Gutenberg-University Mainz, D-55099 Mainz, Germany. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Acrylic Resins
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chemistry* Calcium Carbonate / chemistry* Crystallization / methods Lipids / chemistry* Stearic Acids / chemistry* Surface Properties |
| Chemical | |
Reg. No./Substance:
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0/Acrylic Resins; 0/Lipids; 0/Stearic Acids; 471-34-1/Calcium Carbonate; 57-11-4/stearic acid; 9003-01-4/carbopol 940 |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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