Synthesis of tri-calcium phosphate sponges by interfacial deposition and thermal transformation of self-supporting calcium phosphate films
Porous films of beta- or alpha-tri-calcium phosphate (TCP) were prepared by thermal transformation at 1000 degreesC or 1200 degreesC, respectively, of thin calcium phosphate/calcium carbonate precursor films precipitated at the air/water interface of a supersaturated carbonic acid solution containin...
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Online Access: | http://hdl.handle.net/11585/10033 https://doi.org/10.1039/b415068f |
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ftunibolognairis:oai:cris.unibo.it:11585/10033 2024-04-14T08:10:17+00:00 Synthesis of tri-calcium phosphate sponges by interfacial deposition and thermal transformation of self-supporting calcium phosphate films D. Walsh J. Tanaka S. Mann BOANINI, ELISA D. Walsh E. Boanini J. Tanaka S. Mann 2005 STAMPA http://hdl.handle.net/11585/10033 https://doi.org/10.1039/b415068f eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000227320600004 volume:15 firstpage:1043 lastpage:1048 numberofpages:6 journal:JOURNAL OF MATERIALS CHEMISTRY http://hdl.handle.net/11585/10033 doi:10.1039/b415068f info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-15944366807 Beta-tricalcium phosphate Oriented crystallization Compressed monolayers info:eu-repo/semantics/article 2005 ftunibolognairis https://doi.org/10.1039/b415068f 2024-03-21T17:11:21Z Porous films of beta- or alpha-tri-calcium phosphate (TCP) were prepared by thermal transformation at 1000 degreesC or 1200 degreesC, respectively, of thin calcium phosphate/calcium carbonate precursor films precipitated at the air/water interface of a supersaturated carbonic acid solution containing 60 ppm sodium polyaspartate and a [PO43-] : [CO32-] ratio of ca. 2:1. The beta-Ca-3(PO4)(2) and alpha-Ca-3(PO4)(2) films were typically 10 mm in thickness, consisted of sponge-like interiors with 0.5-1 mum sized macropores, and exhibited surface areas of 10 and 12 m(2) g(-1) respectively. The thickness and morphology of the TCP flakes were related to the time-dependent structure of the self-supporting composite precursor films, which ranged from highly porous 2-D networks to densely packed agglomerates. Similar films consisting only of calcium phosphate, as well as calcium carbonate films of more complex architecture and up to 150 mm in thickness, were also prepared by polyaspartate-mediated controlled crystallization at the air/water interface. The novel combination of carbonic acid solution and bulk-precipitation inhibitor is described in the preparation of porous minerals that have potential applications as supports for catalysts, for drug delivery, protein adsorption and release, or as bone implant materials. Article in Journal/Newspaper Carbonic acid IRIS Università degli Studi di Bologna (CRIS - Current Research Information System) Journal of Materials Chemistry 15 10 1043 |
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Open Polar |
collection |
IRIS Università degli Studi di Bologna (CRIS - Current Research Information System) |
op_collection_id |
ftunibolognairis |
language |
English |
topic |
Beta-tricalcium phosphate Oriented crystallization Compressed monolayers |
spellingShingle |
Beta-tricalcium phosphate Oriented crystallization Compressed monolayers D. Walsh J. Tanaka S. Mann BOANINI, ELISA Synthesis of tri-calcium phosphate sponges by interfacial deposition and thermal transformation of self-supporting calcium phosphate films |
topic_facet |
Beta-tricalcium phosphate Oriented crystallization Compressed monolayers |
description |
Porous films of beta- or alpha-tri-calcium phosphate (TCP) were prepared by thermal transformation at 1000 degreesC or 1200 degreesC, respectively, of thin calcium phosphate/calcium carbonate precursor films precipitated at the air/water interface of a supersaturated carbonic acid solution containing 60 ppm sodium polyaspartate and a [PO43-] : [CO32-] ratio of ca. 2:1. The beta-Ca-3(PO4)(2) and alpha-Ca-3(PO4)(2) films were typically 10 mm in thickness, consisted of sponge-like interiors with 0.5-1 mum sized macropores, and exhibited surface areas of 10 and 12 m(2) g(-1) respectively. The thickness and morphology of the TCP flakes were related to the time-dependent structure of the self-supporting composite precursor films, which ranged from highly porous 2-D networks to densely packed agglomerates. Similar films consisting only of calcium phosphate, as well as calcium carbonate films of more complex architecture and up to 150 mm in thickness, were also prepared by polyaspartate-mediated controlled crystallization at the air/water interface. The novel combination of carbonic acid solution and bulk-precipitation inhibitor is described in the preparation of porous minerals that have potential applications as supports for catalysts, for drug delivery, protein adsorption and release, or as bone implant materials. |
author2 |
D. Walsh E. Boanini J. Tanaka S. Mann |
format |
Article in Journal/Newspaper |
author |
D. Walsh J. Tanaka S. Mann BOANINI, ELISA |
author_facet |
D. Walsh J. Tanaka S. Mann BOANINI, ELISA |
author_sort |
D. Walsh |
title |
Synthesis of tri-calcium phosphate sponges by interfacial deposition and thermal transformation of self-supporting calcium phosphate films |
title_short |
Synthesis of tri-calcium phosphate sponges by interfacial deposition and thermal transformation of self-supporting calcium phosphate films |
title_full |
Synthesis of tri-calcium phosphate sponges by interfacial deposition and thermal transformation of self-supporting calcium phosphate films |
title_fullStr |
Synthesis of tri-calcium phosphate sponges by interfacial deposition and thermal transformation of self-supporting calcium phosphate films |
title_full_unstemmed |
Synthesis of tri-calcium phosphate sponges by interfacial deposition and thermal transformation of self-supporting calcium phosphate films |
title_sort |
synthesis of tri-calcium phosphate sponges by interfacial deposition and thermal transformation of self-supporting calcium phosphate films |
publishDate |
2005 |
url |
http://hdl.handle.net/11585/10033 https://doi.org/10.1039/b415068f |
genre |
Carbonic acid |
genre_facet |
Carbonic acid |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000227320600004 volume:15 firstpage:1043 lastpage:1048 numberofpages:6 journal:JOURNAL OF MATERIALS CHEMISTRY http://hdl.handle.net/11585/10033 doi:10.1039/b415068f info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-15944366807 |
op_doi |
https://doi.org/10.1039/b415068f |
container_title |
Journal of Materials Chemistry |
container_volume |
15 |
container_issue |
10 |
container_start_page |
1043 |
_version_ |
1796307803046936576 |