{"created":"2023-05-15T14:37:50.776709+00:00","id":48832,"links":{},"metadata":{"_buckets":{"deposit":"4b644f8c-2e62-491f-815c-929ce1a2da62"},"_deposit":{"created_by":1,"id":"48832","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"48832"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00048832","sets":["1"]},"author_link":["491865","491862","491856","491860","491864","491859","491863","491858","491861","491857"],"item_8_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2017-07","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"31","bibliographicPageEnd":"7817","bibliographicPageStart":"7810","bibliographicVolumeNumber":"33","bibliographic_titles":[{"bibliographic_title":"Langmuir"}]}]},"item_8_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Nanoparticles capable of accumulating in tumor tissues are promising materials for tumor imaging and therapy. In this study, two radical nanoparticles (RNPs), denoted as 1 and 2, composed of self-assembled ureabenzene derivatives possessing one or two amphiphilic side chains were demonstrated to be candidates for metal-free functional magnetic resonance imaging (MRI) contrast agents (CAs). Because of the self-assembly behavior of 1 and 2 in a saline solution, spherical RNPs of sizes ∼50–90 and ∼30–100 nm were detected. In a highly concentrated solution, RNP 1 showed considerably small water-proton relaxivity values (r1 and r2), whereas RNP 2 showed an r1 value that was around 5 times larger than that of RNP 1. These distinct r1 values might be caused by differences in the self-assembly behavior by a hydration or dehydration process. In vivo studies with RNP 2 demonstrated a slightly enhanced T1-weighted image in mice, suggesting that the RNPs can potentially be used as metal-free functional MRI CAs for T1-weighted imaging.","subitem_description_type":"Abstract"}]},"item_8_relation_13":{"attribute_name":"PubMed番号","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"28678510","subitem_relation_type_select":"PMID"}}]},"item_8_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"10.1021/acs.langmuir.7b01126","subitem_relation_type_select":"DOI"}}]},"item_8_relation_17":{"attribute_name":"関連サイト","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_text":"http://pubs.acs.org/doi/abs/10.1021/acs.langmuir.7b01126"}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"http://pubs.acs.org/doi/abs/10.1021/acs.langmuir.7b01126","subitem_relation_type_select":"URI"}}]},"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":"Morishita, Kosuke"}],"nameIdentifiers":[{"nameIdentifier":"491856","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Yuna, Okamoto"}],"nameIdentifiers":[{"nameIdentifier":"491857","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Murayama, Shuhei"}],"nameIdentifiers":[{"nameIdentifier":"491858","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Usui, Kazuteru"}],"nameIdentifiers":[{"nameIdentifier":"491859","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Eriko, Ohashi"}],"nameIdentifiers":[{"nameIdentifier":"491860","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Hirai, Go"}],"nameIdentifiers":[{"nameIdentifier":"491861","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Aoki, Ichio"}],"nameIdentifiers":[{"nameIdentifier":"491862","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Karasawa, Satoru"}],"nameIdentifiers":[{"nameIdentifier":"491863","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"村山 周平","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"491864","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"青木 伊知男","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"491865","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":"Water-Proton Relaxivities of Radical Nanoparticles Self-Assembled via Hydration or Dehydration Processes","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Water-Proton Relaxivities of Radical Nanoparticles Self-Assembled via Hydration or Dehydration Processes"}]},"item_type_id":"8","owner":"1","path":["1"],"pubdate":{"attribute_name":"公開日","attribute_value":"2018-05-02"},"publish_date":"2018-05-02","publish_status":"0","recid":"48832","relation_version_is_last":true,"title":["Water-Proton Relaxivities of Radical Nanoparticles Self-Assembled via Hydration or Dehydration Processes"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-15T23:23:49.295366+00:00"}