Polymorph and Orientation Controls of Calcium Carbonate Crystals Achieved by Organic Matrices
Crystallographic properties such as polymorphs and crystal orientations of calcium carbonate formed in biological systems can be controlled by interactions between organic matrices and inorganic substances. We have attempted to reveal such control mechanisms, using a polymerized Langmuir-Blodgett fi...
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| Veröffentlicht in: | Journal of the Ceramic Society of Japan 2006, Vol.114(1333), pp.754-759 |
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| container_title | Journal of the Ceramic Society of Japan |
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| creator | SATO, Kimiyasu KUMAGAI, Yuri KOGURE, Toshihiro WATARI, Koji TANAKA, Junzo |
| description | Crystallographic properties such as polymorphs and crystal orientations of calcium carbonate formed in biological systems can be controlled by interactions between organic matrices and inorganic substances. We have attempted to reveal such control mechanisms, using a polymerized Langmuir-Blodgett film of 10,12-pentacosadiynoic acid (PDA) as an organic matrix with highly regulated molecular alignment. Only calcite crystals were precipitated on the polymerized PDA film, even though in presence of Mg2+ ions which were reported to enhance aragonite formation in previous works. The calcite precipitates were aligned on the PDA film with their a-axes in parallel to the polymerization direction. Calcite structure does not give a reasonable match over the molecular alignment of the PDA film along its a-axis. A concerted mechanism of geometric matching and stereochemical effect should determine the polymorphs and directions of calcium carbonate crystals on the organic matrices. |
| doi_str_mv | 10.2109/jcersj.114.754 |
| format | Article |
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We have attempted to reveal such control mechanisms, using a polymerized Langmuir-Blodgett film of 10,12-pentacosadiynoic acid (PDA) as an organic matrix with highly regulated molecular alignment. Only calcite crystals were precipitated on the polymerized PDA film, even though in presence of Mg2+ ions which were reported to enhance aragonite formation in previous works. The calcite precipitates were aligned on the PDA film with their a-axes in parallel to the polymerization direction. Calcite structure does not give a reasonable match over the molecular alignment of the PDA film along its a-axis. 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A concerted mechanism of geometric matching and stereochemical effect should determine the polymorphs and directions of calcium carbonate crystals on the organic matrices.</description><subject>Biomineralization</subject><subject>Calcium carbonate</subject><subject>Crystal orientation</subject><subject>Organic matrix</subject><subject>Polymorph</subject><issn>0914-5400</issn><issn>1882-0743</issn><issn>1882-1022</issn><issn>1348-6535</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><recordid>eNpNkE1LAzEQhoMoWGqvnhc8b51ssl_HsvhJpR70KGE2O21T2k1NUmH_vZFK9TQD87wzzMPYNYdpxqG-3WhyfjPlXE7LXJ6xEa-qLOWQZedsBDWXaS4BLtnEe9MCZLKSBYgR-3i122Fn3X6dYN8lC2eoDxiM7ZPG9sHZrU_sMmlwq81hF6trbY-BksYNPmCczvTa0Bd1STvE-Ap7o5MXDM5o8lfsYhkZmvzWMXu_v3trHtP54uGpmc1TLeo6pFQDaShL6FqSUHUCC4AyBxAIyHWLWBR5l2dFLaFD3ukqJ6rLrCyFyLDoxJjdHPfunf08kA9qYw-ujycVlzKvOZRVEanpkdLOeu9oqfbO7NANioP6saiOFlW0qKLFGHg-Bjbx1RWdcHTB6C39x7kQ4q-J4ROk1-gU9eIbIOSAaw</recordid><startdate>2006</startdate><enddate>2006</enddate><creator>SATO, Kimiyasu</creator><creator>KUMAGAI, Yuri</creator><creator>KOGURE, Toshihiro</creator><creator>WATARI, Koji</creator><creator>TANAKA, Junzo</creator><general>The Ceramic Society of Japan</general><general>Japan Science and Technology Agency</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7QQ</scope><scope>7SR</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>2006</creationdate><title>Polymorph and Orientation Controls of Calcium Carbonate Crystals Achieved by Organic Matrices</title><author>SATO, Kimiyasu ; KUMAGAI, Yuri ; KOGURE, Toshihiro ; WATARI, Koji ; TANAKA, Junzo</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c399t-e90ec0770dbe408d3a60075003a0a1cbaa665d526940da1dc85ee97277332a6d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2006</creationdate><topic>Biomineralization</topic><topic>Calcium carbonate</topic><topic>Crystal orientation</topic><topic>Organic matrix</topic><topic>Polymorph</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>SATO, Kimiyasu</creatorcontrib><creatorcontrib>KUMAGAI, Yuri</creatorcontrib><creatorcontrib>KOGURE, Toshihiro</creatorcontrib><creatorcontrib>WATARI, Koji</creatorcontrib><creatorcontrib>TANAKA, Junzo</creatorcontrib><collection>CrossRef</collection><collection>Ceramic Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Journal of the Ceramic Society of Japan</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>SATO, Kimiyasu</au><au>KUMAGAI, Yuri</au><au>KOGURE, Toshihiro</au><au>WATARI, Koji</au><au>TANAKA, Junzo</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Polymorph and Orientation Controls of Calcium Carbonate Crystals Achieved by Organic Matrices</atitle><jtitle>Journal of the Ceramic Society of Japan</jtitle><addtitle>J. Ceram. Soc. Japan</addtitle><date>2006</date><risdate>2006</risdate><volume>114</volume><issue>1333</issue><spage>754</spage><epage>759</epage><pages>754-759</pages><issn>0914-5400</issn><issn>1882-0743</issn><eissn>1882-1022</eissn><eissn>1348-6535</eissn><abstract>Crystallographic properties such as polymorphs and crystal orientations of calcium carbonate formed in biological systems can be controlled by interactions between organic matrices and inorganic substances. We have attempted to reveal such control mechanisms, using a polymerized Langmuir-Blodgett film of 10,12-pentacosadiynoic acid (PDA) as an organic matrix with highly regulated molecular alignment. Only calcite crystals were precipitated on the polymerized PDA film, even though in presence of Mg2+ ions which were reported to enhance aragonite formation in previous works. The calcite precipitates were aligned on the PDA film with their a-axes in parallel to the polymerization direction. Calcite structure does not give a reasonable match over the molecular alignment of the PDA film along its a-axis. A concerted mechanism of geometric matching and stereochemical effect should determine the polymorphs and directions of calcium carbonate crystals on the organic matrices.</abstract><cop>Tokyo</cop><pub>The Ceramic Society of Japan</pub><doi>10.2109/jcersj.114.754</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Biomineralization Calcium carbonate Crystal orientation Organic matrix Polymorph |
| title | Polymorph and Orientation Controls of Calcium Carbonate Crystals Achieved by Organic Matrices |
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