{"created":"2023-05-15T14:55:02.418967+00:00","id":74806,"links":{},"metadata":{"_buckets":{"deposit":"0237d819-e47b-4eba-be71-46695d7b623d"},"_deposit":{"created_by":1,"id":"74806","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"74806"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00074806","sets":["1"]},"author_link":["750656","750655","750658","750654","750659","750650","750657","750651","750652","750653","750649","750660"],"item_8_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2018-11","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"12","bibliographicPageEnd":"6975","bibliographicPageStart":"6967","bibliographicVolumeNumber":"1","bibliographic_titles":[{"bibliographic_title":"ACS Appl. Nano Mater."}]}]},"item_8_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"As part of a series of investigations related to the construction of metal-free magnetic resonance imaging (MRI) contrast agents as alternatives to gadolinium agents, water-soluble biradicals, denoted as 1-AMP and 2-HEG, were prepared, in which two stable radicals were introduced to a ureabenzene framework. We found that 1-AMP possessed an amphiphilic side chain that consisted of an alkyl group and a hexaethylene glycol (HEG) chain, whereas 2-HEG possessed only an HEG chain. Accordingly, the biradicals showed self-assembly behavior due to multiple intermolecular interactions through which nanoparticles were formed in a water solution. Magnetic interaction took place in both biradicals, and the estimated interaction strength was J = 5.4 mT. Through MRI measurement, the water proton relaxivities, r1, were estimated to be 0.12 and 0.41 mM–1 s–1 for 1-AMP and 2-HEG, respectively; in other words, the r1 value for 2-HEG was approximately twice as high as that of monoradical-based contrast agents.","subitem_description_type":"Abstract"}]},"item_8_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"American Chemical Society"}]},"item_8_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"10.1021/acsanm.8b01774","subitem_relation_type_select":"DOI"}}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"metadata only access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_14cb"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"K, Morishita"}],"nameIdentifiers":[{"nameIdentifier":"750649","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"S, Ueki"}],"nameIdentifiers":[{"nameIdentifier":"750650","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Y, Fuchi"}],"nameIdentifiers":[{"nameIdentifier":"750651","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"S, Murayama"}],"nameIdentifiers":[{"nameIdentifier":"750652","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"T, Kaneko"}],"nameIdentifiers":[{"nameIdentifier":"750653","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"N, Narita"}],"nameIdentifiers":[{"nameIdentifier":"750654","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"S, Kobayashi"}],"nameIdentifiers":[{"nameIdentifier":"750655","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"G, Hirai"}],"nameIdentifiers":[{"nameIdentifier":"750656","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Aoki, Ichio"}],"nameIdentifiers":[{"nameIdentifier":"750657","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"S, Karasawa"}],"nameIdentifiers":[{"nameIdentifier":"750658","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Murayama, Shuhei","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"750659","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Aoki, Ichio","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"750660","nameIdentifierScheme":"WEKO"}]}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"Self-Assembled Biradical Ureabenzene Nanoparticles for Magnetic Resonance Imaging","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Self-Assembled Biradical Ureabenzene Nanoparticles for Magnetic Resonance Imaging"}]},"item_type_id":"8","owner":"1","path":["1"],"pubdate":{"attribute_name":"公開日","attribute_value":"2019-03-18"},"publish_date":"2019-03-18","publish_status":"0","recid":"74806","relation_version_is_last":true,"title":["Self-Assembled Biradical Ureabenzene Nanoparticles for Magnetic Resonance Imaging"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-16T01:00:53.282295+00:00"}