{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1363670319960570752.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1016/s0142-9612(02)00065-0"}},{"identifier":{"@type":"URI","@value":"https://api.elsevier.com/content/article/PII:S0142961202000650?httpAccept=text/xml"}},{"identifier":{"@type":"URI","@value":"https://api.elsevier.com/content/article/PII:S0142961202000650?httpAccept=text/plain"}},{"identifier":{"@type":"PMID","@value":"12069346"}}],"dc:title":[{"@value":"Apatite-forming ability and mechanical properties of PTMO-modified CaO–SiO2 hybrids prepared by sol–gel processing: effect of CaO and PTMO contents"}],"description":[{"notation":[{"@value":"Transparent monolithics of triethoxysilane end-capped poly(tetramethylene oxide) (Si-PTMO)-modified CaO-SiO2 hybrids were successfully synthesized by hydrolysis and polycondensation of Si-PTMO, tetraethoxysilane (TEOS) and calcium nitrate. As for the samples with varying (Ca(NO3)2)/(TEOS) molar ratios under constant ratio of (Si-PTMO)/(TEOS) of 2/3 in weight. the apatite-forming ability in a simulated body fluid (SBF) which is indicative of bioactivity. remarkably increased with increasing CaO content, although the tensile strength and Young's modulus decreased. The hybrid with (Ca(NO3)2)/(TEOS) = 0.15 in mol formed an apatite on its surface within only 1 day. For this series of samples, the strain at failure which is a measure of capability for deformation of material, was found to be about 30% and almost independent of CaO content. As for the samples with varying (Si-PTMO)/(TEOS) weight ratios under constant ratio of (Ca(NO3)2)/(TEOS) of 0.15 in mol, the strain at failure increased with increasing Si-PTMO content, but the apatite-forming ability, tensile strength and Young's modulus decreased. Thus, the synthesis of the hybrids exhibiting both high apatite-forming ability and high extensibility can be achieved by selecting suitable CaO and Si-PTMO contents. These new kind of hybrid materials may be useful as bioactive bone-repairing materials."}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1383670319960570756","@type":"Researcher","foaf:name":[{"@value":"Noboru Miyata"}]},{"@id":"https://cir.nii.ac.jp/crid/1383670319960570757","@type":"Researcher","foaf:name":[{"@value":"Ken-ichi Fuke"}]},{"@id":"https://cir.nii.ac.jp/crid/1383670319960570753","@type":"Researcher","foaf:name":[{"@value":"Qi Chen"}]},{"@id":"https://cir.nii.ac.jp/crid/1383670319960570755","@type":"Researcher","foaf:name":[{"@value":"Masakazu Kawashita"}]},{"@id":"https://cir.nii.ac.jp/crid/1383670319960570754","@type":"Researcher","foaf:name":[{"@value":"Tadashi Kokubo"}]},{"@id":"https://cir.nii.ac.jp/crid/1383670319960570752","@type":"Researcher","foaf:name":[{"@value":"Takashi Nakamura"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"01429612"}],"prism:publicationName":[{"@value":"Biomaterials"}],"dc:publisher":[{"@value":"Elsevier BV"}],"prism:publicationDate":"2002-07","prism:volume":"23","prism:number":"14","prism:startingPage":"3033","prism:endingPage":"3040"},"reviewed":"false","dc:rights":["https://www.elsevier.com/tdm/userlicense/1.0/","https://www.elsevier.com/legal/tdmrep-license"],"url":[{"@id":"https://api.elsevier.com/content/article/PII:S0142961202000650?httpAccept=text/xml"},{"@id":"https://api.elsevier.com/content/article/PII:S0142961202000650?httpAccept=text/plain"}],"createdAt":"2002-07-25","modifiedAt":"2025-09-26","foaf:topic":[{"@id":"https://cir.nii.ac.jp/all?q=Surface%20Properties","dc:title":"Surface Properties"},{"@id":"https://cir.nii.ac.jp/all?q=Biocompatible%20Materials","dc:title":"Biocompatible Materials"},{"@id":"https://cir.nii.ac.jp/all?q=Oxides","dc:title":"Oxides"},{"@id":"https://cir.nii.ac.jp/all?q=Calcium%20Compounds","dc:title":"Calcium Compounds"},{"@id":"https://cir.nii.ac.jp/all?q=Silicon%20Dioxide","dc:title":"Silicon Dioxide"},{"@id":"https://cir.nii.ac.jp/all?q=Body%20Fluids","dc:title":"Body Fluids"},{"@id":"https://cir.nii.ac.jp/all?q=Apatites","dc:title":"Apatites"},{"@id":"https://cir.nii.ac.jp/all?q=Tensile%20Strength","dc:title":"Tensile Strength"},{"@id":"https://cir.nii.ac.jp/all?q=Materials%20Testing","dc:title":"Materials Testing"},{"@id":"https://cir.nii.ac.jp/all?q=Spectroscopy,%20Fourier%20Transform%20Infrared","dc:title":"Spectroscopy, Fourier Transform Infrared"},{"@id":"https://cir.nii.ac.jp/all?q=Microscopy,%20Electron,%20Scanning","dc:title":"Microscopy, Electron, Scanning"},{"@id":"https://cir.nii.ac.jp/all?q=Humans","dc:title":"Humans"},{"@id":"https://cir.nii.ac.jp/all?q=Gels","dc:title":"Gels"}],"relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1390001205248010624","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Preparation of PTMO-Modified CaO-TiO2 Hybrids via Sol-Gel Processing: Their Apatite-Forming Ability and Mechanical Properties"},{"@language":"ja","@value":"ゾル-ゲル法によるPTMO修飾CaO-TiO<sub>2</sub>ハイブリッドの調製：ハイブリッドのアパタイト形成能と力学的性質"}]},{"@id":"https://cir.nii.ac.jp/crid/1390001205287956352","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Development of highly functionalized ceramic biomaterials"},{"@value":"The 66th CerSJ Awards for Academic Achievements in Ceramic Science and Technology : Development of highly functionalized ceramic biomaterials"}]},{"@id":"https://cir.nii.ac.jp/crid/1390282679228645888","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Effects of Cross-Linking Agent on Apatite-Forming Ability and Mechanical Property of Organic-Inorganic Hybrids Based on Starch"}]},{"@id":"https://cir.nii.ac.jp/crid/1390282680260347520","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Synthesis of Organic-Inorganic Hybrids of Poly(Tetramethylene Oxide)-Calcium Silicate and in vitro Evaluation of Their Bioactivity"}]}],"dataSourceIdentifier":[{"@type":"CROSSREF","@value":"10.1016/s0142-9612(02)00065-0"},{"@type":"OPENAIRE","@value":"doi_dedup___::0025e0fe608ce337197be802116b3979"},{"@type":"CROSSREF","@value":"10.2109/jcersj2.121.129_references_DOI_Fgb8AlJemvPeG4Dps38EGmiQpxE"},{"@type":"CROSSREF","@value":"10.2109/jcersj2.115.732_references_DOI_Fgb8AlJemvPeG4Dps38EGmiQpxE"},{"@type":"CROSSREF","@value":"10.2109/jcersj.111.555_references_DOI_Fgb8AlJemvPeG4Dps38EGmiQpxE"},{"@type":"CROSSREF","@value":"10.2320/matertrans.48.317_references_DOI_Fgb8AlJemvPeG4Dps38EGmiQpxE"}]}