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Calcium Phosphate Mineralization beneath a Polycationic Monolayer at the Air-Water Interface

Calcium Phosphate Mineralization beneath a Polycationic Monolayer at the Air-Water Interface


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JUNGINGER, Mathias, Katarzyna KITA-TOKARCYK, Thomas SCHUSTER, Jürgen REICHE, Felix SCHACHER, Axel H. E. MÜLLER, Helmut CÖLFEN, Andreas TAUBERT, 2010. Calcium Phosphate Mineralization beneath a Polycationic Monolayer at the Air-Water Interface. In: LENDLEIN, Andreas, ed.. Macromolecular Bioscience. 10(9), pp. 1084-1092. eISSN 1616-5187

@article{Junginger2010Calci-9642, title={Calcium Phosphate Mineralization beneath a Polycationic Monolayer at the Air-Water Interface}, year={2010}, doi={10.1002/mabi.201000093}, number={9}, volume={10}, journal={Macromolecular Bioscience}, pages={1084--1092}, author={Junginger, Mathias and Kita-Tokarcyk, Katarzyna and Schuster, Thomas and Reiche, Jürgen and Schacher, Felix and Müller, Axel H. E. and Cölfen, Helmut and Taubert, Andreas} }

<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:bibo="http://purl.org/ontology/bibo/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > <rdf:Description rdf:about="https://kops.uni-konstanz.de/rdf/resource/123456789/9642"> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T18:13:24Z</dc:date> <dcterms:rights rdf:resource="http://nbn-resolving.org/urn:nbn:de:bsz:352-20140905103416863-3868037-7"/> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T18:13:24Z</dcterms:available> <dc:creator>Schacher, Felix</dc:creator> <dc:contributor>Schacher, Felix</dc:contributor> <dc:language>eng</dc:language> <dc:creator>Taubert, Andreas</dc:creator> <dcterms:issued>2010</dcterms:issued> <dc:creator>Schuster, Thomas</dc:creator> <dc:contributor>Cölfen, Helmut</dc:contributor> <dcterms:bibliographicCitation>First publ. in: Macromolecular Bioscience 10 (2010), 9, pp. 1084-1092</dcterms:bibliographicCitation> <dc:creator>Junginger, Mathias</dc:creator> <dc:contributor>Müller, Axel H. E.</dc:contributor> <dc:contributor>Schuster, Thomas</dc:contributor> <dc:rights>deposit-license</dc:rights> <dc:creator>Müller, Axel H. E.</dc:creator> <dcterms:abstract xml:lang="eng">The self-assembly of the amphiphilic block copolymer poly(n-butyl methacrylate)-block-poly[2-(dimethylamino)ethyl methacrylate] at the air water interface has been investigated at different pH values. Similar to Rehfeldt et al. (J. Phys. Chem. B2006, 110, 9171), the subphase pH strongly affects the monolayer properties. The formation of calcium phosphate beneath the monolayer can be tuned by the subphase pH and hence the monolayer charge. After 12 h of mineralization at pH 5, the polymer monolayers are still transparent, but transmission electron microscopy (TEM) shows that very thin calcium phosphate fibers form, which aggregate into cotton ball-like features with diameters of 20 to 50 nm. In contrast, after 12 h of mineralization at pH 8, the polymer film is very slightly turbid and TEM shows dense aggregates with sizes between 200 and 700 nm. The formation of calcium phosphate is further confirmed by Raman and energy dispersive X-ray spectroscopy. The calcium phosphate architectures can be assigned to the monolayer charge, which is high at low pH and low at high pH. The study demonstrates that the effects of polycations should not be ignored if attempting to understand the colloid chemistry of biomimetic mineralization. It also shows that basic block copolymers are useful complementary systems to the much more commonly studied acidic block copolymer templates.</dcterms:abstract> <dcterms:title>Calcium Phosphate Mineralization beneath a Polycationic Monolayer at the Air-Water Interface</dcterms:title> <dc:creator>Reiche, Jürgen</dc:creator> <dc:contributor>Kita-Tokarcyk, Katarzyna</dc:contributor> <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/9642"/> <dc:contributor>Taubert, Andreas</dc:contributor> <dc:format>application/pdf</dc:format> <dc:contributor>Junginger, Mathias</dc:contributor> <dc:contributor>Reiche, Jürgen</dc:contributor> <dc:creator>Kita-Tokarcyk, Katarzyna</dc:creator> <dc:creator>Cölfen, Helmut</dc:creator> </rdf:Description> </rdf:RDF>

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