Synthesis of amorphous calcium phosphate using various types of cyclodextrins
Amorphous calcium phosphate (ACP) was synthesised in aqueous solution at room temperature using cyclodextrins. Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), transmission electron microscopy (TEM), energy dispersive X-ray spectroscopy (EDX) and thermal analysis (DTA/TGA) we...
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| Veröffentlicht in: | Materials research bulletin 2007-05, Vol.42 (5), p.820-827 |
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| creator | Li, Yanbao Wiliana, Tjandra Tam, Kam C. |
| description | Amorphous calcium phosphate (ACP) was synthesised in aqueous solution at room temperature using cyclodextrins. Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), transmission electron microscopy (TEM), energy dispersive X-ray spectroscopy (EDX) and thermal analysis (DTA/TGA) were performed on the calcium phosphate precipitates obtained from solutions. We observed that only β-CD could stabilise the amorphous phase in the mother solution because of the lower solubility of β-CD in water and the ACP remained stable in aqueous solution for more than 24
h at room temperature. The ACP particle has an initial particle size of less than 40
nm, Ca/P molar ratio of 1.67 and β-CD absorbed on its surface. The mechanism for the stabilisation of ACP is proposed. |
| doi_str_mv | 10.1016/j.materresbull.2006.08.027 |
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h at room temperature. The ACP particle has an initial particle size of less than 40
nm, Ca/P molar ratio of 1.67 and β-CD absorbed on its surface. The mechanism for the stabilisation of ACP is proposed.</description><identifier>ISSN: 0025-5408</identifier><identifier>EISSN: 1873-4227</identifier><identifier>DOI: 10.1016/j.materresbull.2006.08.027</identifier><language>eng</language><publisher>United States: Elsevier Ltd</publisher><subject>A. Amorphous materials ; A. Nanostructures ; AMORPHOUS STATE ; AQUEOUS SOLUTIONS ; B. Chemical synthesis ; CALCIUM PHOSPHATES ; CHEMICAL PREPARATION ; DIFFERENTIAL THERMAL ANALYSIS ; FOURIER TRANSFORMATION ; INFRARED SPECTRA ; MATERIALS SCIENCE ; NANOSTRUCTURES ; PARTICLE SIZE ; PARTICLES ; PRECIPITATION ; SOLUBILITY ; TEMPERATURE RANGE 0273-0400 K ; THERMAL GRAVIMETRIC ANALYSIS ; TRANSMISSION ELECTRON MICROSCOPY ; X-RAY DIFFRACTION ; X-RAY SPECTROSCOPY</subject><ispartof>Materials research bulletin, 2007-05, Vol.42 (5), p.820-827</ispartof><rights>2006 Elsevier Ltd</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c418t-198d978be4cc1de6e84dbf0f99884a7ca7153fa73613e4f8090fe35bcf554683</citedby><cites>FETCH-LOGICAL-c418t-198d978be4cc1de6e84dbf0f99884a7ca7153fa73613e4f8090fe35bcf554683</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0025540806003552$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>230,314,776,780,881,3537,27901,27902,65534</link.rule.ids><backlink>$$Uhttps://www.osti.gov/biblio/21000628$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Li, Yanbao</creatorcontrib><creatorcontrib>Wiliana, Tjandra</creatorcontrib><creatorcontrib>Tam, Kam C.</creatorcontrib><title>Synthesis of amorphous calcium phosphate using various types of cyclodextrins</title><title>Materials research bulletin</title><description>Amorphous calcium phosphate (ACP) was synthesised in aqueous solution at room temperature using cyclodextrins. Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), transmission electron microscopy (TEM), energy dispersive X-ray spectroscopy (EDX) and thermal analysis (DTA/TGA) were performed on the calcium phosphate precipitates obtained from solutions. We observed that only β-CD could stabilise the amorphous phase in the mother solution because of the lower solubility of β-CD in water and the ACP remained stable in aqueous solution for more than 24
h at room temperature. The ACP particle has an initial particle size of less than 40
nm, Ca/P molar ratio of 1.67 and β-CD absorbed on its surface. The mechanism for the stabilisation of ACP is proposed.</description><subject>A. Amorphous materials</subject><subject>A. Nanostructures</subject><subject>AMORPHOUS STATE</subject><subject>AQUEOUS SOLUTIONS</subject><subject>B. Chemical synthesis</subject><subject>CALCIUM PHOSPHATES</subject><subject>CHEMICAL PREPARATION</subject><subject>DIFFERENTIAL THERMAL ANALYSIS</subject><subject>FOURIER TRANSFORMATION</subject><subject>INFRARED SPECTRA</subject><subject>MATERIALS SCIENCE</subject><subject>NANOSTRUCTURES</subject><subject>PARTICLE SIZE</subject><subject>PARTICLES</subject><subject>PRECIPITATION</subject><subject>SOLUBILITY</subject><subject>TEMPERATURE RANGE 0273-0400 K</subject><subject>THERMAL GRAVIMETRIC ANALYSIS</subject><subject>TRANSMISSION ELECTRON MICROSCOPY</subject><subject>X-RAY DIFFRACTION</subject><subject>X-RAY SPECTROSCOPY</subject><issn>0025-5408</issn><issn>1873-4227</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><recordid>eNqNkEtPwzAQhC0EEqXwHyI4J6wTJ3a4ofKUijjQu-U4a-IqL9lJRf49CeXAkdNqtTM7mo-QawoRBZrd7qNGDegc-mKs6ygGyCIQEcT8hKyo4EnI4pifkhVAnIYpA3FOLrzfAwATnK_I28fUDhV664POBKrpXF91ow-0qrUdm2DefF_NGcHobfsZHJSzy32Yevyx6EnXXYlfg7OtvyRnRtUer37nmuyeHnebl3D7_vy6ud-GmlExhDQXZc5FgUxrWmKGgpWFAZPnQjDFteI0TYziSUYTZEZADgaTtNAmTVkmkjW5Ob7t_GCl13ZAXemubVEPMqZzuSxeVHdHlXad9w6N7J1tlJskBbnQk3v5l55c6EkQcqY3mx-OZpxrHCy6JQZbjaV1S0rZ2f-8-QYEkoGm</recordid><startdate>20070503</startdate><enddate>20070503</enddate><creator>Li, Yanbao</creator><creator>Wiliana, Tjandra</creator><creator>Tam, Kam C.</creator><general>Elsevier Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>OTOTI</scope></search><sort><creationdate>20070503</creationdate><title>Synthesis of amorphous calcium phosphate using various types of cyclodextrins</title><author>Li, Yanbao ; Wiliana, Tjandra ; Tam, Kam C.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c418t-198d978be4cc1de6e84dbf0f99884a7ca7153fa73613e4f8090fe35bcf554683</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2007</creationdate><topic>A. Amorphous materials</topic><topic>A. Nanostructures</topic><topic>AMORPHOUS STATE</topic><topic>AQUEOUS SOLUTIONS</topic><topic>B. Chemical synthesis</topic><topic>CALCIUM PHOSPHATES</topic><topic>CHEMICAL PREPARATION</topic><topic>DIFFERENTIAL THERMAL ANALYSIS</topic><topic>FOURIER TRANSFORMATION</topic><topic>INFRARED SPECTRA</topic><topic>MATERIALS SCIENCE</topic><topic>NANOSTRUCTURES</topic><topic>PARTICLE SIZE</topic><topic>PARTICLES</topic><topic>PRECIPITATION</topic><topic>SOLUBILITY</topic><topic>TEMPERATURE RANGE 0273-0400 K</topic><topic>THERMAL GRAVIMETRIC ANALYSIS</topic><topic>TRANSMISSION ELECTRON MICROSCOPY</topic><topic>X-RAY DIFFRACTION</topic><topic>X-RAY SPECTROSCOPY</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Li, Yanbao</creatorcontrib><creatorcontrib>Wiliana, Tjandra</creatorcontrib><creatorcontrib>Tam, Kam C.</creatorcontrib><collection>CrossRef</collection><collection>OSTI.GOV</collection><jtitle>Materials research bulletin</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Li, Yanbao</au><au>Wiliana, Tjandra</au><au>Tam, Kam C.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Synthesis of amorphous calcium phosphate using various types of cyclodextrins</atitle><jtitle>Materials research bulletin</jtitle><date>2007-05-03</date><risdate>2007</risdate><volume>42</volume><issue>5</issue><spage>820</spage><epage>827</epage><pages>820-827</pages><issn>0025-5408</issn><eissn>1873-4227</eissn><abstract>Amorphous calcium phosphate (ACP) was synthesised in aqueous solution at room temperature using cyclodextrins. Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), transmission electron microscopy (TEM), energy dispersive X-ray spectroscopy (EDX) and thermal analysis (DTA/TGA) were performed on the calcium phosphate precipitates obtained from solutions. We observed that only β-CD could stabilise the amorphous phase in the mother solution because of the lower solubility of β-CD in water and the ACP remained stable in aqueous solution for more than 24
h at room temperature. The ACP particle has an initial particle size of less than 40
nm, Ca/P molar ratio of 1.67 and β-CD absorbed on its surface. The mechanism for the stabilisation of ACP is proposed.</abstract><cop>United States</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.materresbull.2006.08.027</doi><tpages>8</tpages></addata></record> |
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| ispartof | Materials research bulletin, 2007-05, Vol.42 (5), p.820-827 |
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| source | Elsevier ScienceDirect Journals Complete |
| subjects | A. Amorphous materials A. Nanostructures AMORPHOUS STATE AQUEOUS SOLUTIONS B. Chemical synthesis CALCIUM PHOSPHATES CHEMICAL PREPARATION DIFFERENTIAL THERMAL ANALYSIS FOURIER TRANSFORMATION INFRARED SPECTRA MATERIALS SCIENCE NANOSTRUCTURES PARTICLE SIZE PARTICLES PRECIPITATION SOLUBILITY TEMPERATURE RANGE 0273-0400 K THERMAL GRAVIMETRIC ANALYSIS TRANSMISSION ELECTRON MICROSCOPY X-RAY DIFFRACTION X-RAY SPECTROSCOPY |
| title | Synthesis of amorphous calcium phosphate using various types of cyclodextrins |
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