{"created":"2023-05-15T14:39:55.511553+00:00","id":54790,"links":{},"metadata":{"_buckets":{"deposit":"5783c4e1-3fc4-4885-aa42-916caf76fb26"},"_deposit":{"created_by":1,"id":"54790","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"54790"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00054790","sets":["2"]},"author_link":["560116","560111","560112","560113","560115","560114"],"item_10003_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2016-11","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"Supplement","bibliographicPageEnd":"S28","bibliographicPageStart":"S27","bibliographicVolumeNumber":"100","bibliographic_titles":[{"bibliographic_title":"Free Radical Biology and Medicine"}]}]},"item_10003_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"2,2-Diphenyl-1-picrylhydrazyl radical (DPPH●) is a relatively stable radical and frequently used as a reactivity model of reactive oxygen species. However, its insolubility in water precludes the investigation of the redox behavior of DPPH● in aqueous media, especially in concentrated buffer solutions. We have recently reported that DPPH● can be successfully solubilized in water by β-cyclodextrin (β-CD). The as-obtained β-CD-solubilized DPPH● (DPPH●/β-CD) was demonstrated to be a powerful tool for evaluating the antioxidative activity of water-soluble antioxidants, such as ascorbic acid, Trolox, and caffeic acid, in concentrated buffer solutions. In this study, the redox behavior of DPPH●/β-CD was investigated by cyclic voltammetry. A well-defined reversible redox wave was observed for one-electron reduction of DPPH●/β-CD in phosphate buffer (0.1 M, pH 7.4). On the other hand, one-electron oxidation of DPPH●/β-CD showed a quasi-reversible redox wave, which suggests that DPPH cations (DPPH+) generated by the electrochemical one-electron oxidation may undergo a follow-up chemical reaction, such as an addition of a water molecule.","subitem_description_type":"Abstract"}]},"item_10003_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"Elsevier"}]},"item_10003_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"10.1016/j.freeradbiomed.2016.10.068","subitem_relation_type_select":"DOI"}}]},"item_10003_relation_17":{"attribute_name":"関連サイト","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_text":"http://www.sciencedirect.com/science/article/pii/S0891584916305391"}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"http://www.sciencedirect.com/science/article/pii/S0891584916305391","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":"Nakanishi, Ikuo"}],"nameIdentifiers":[{"nameIdentifier":"560111","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Ozawa, Toshihiko"}],"nameIdentifiers":[{"nameIdentifier":"560112","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Matsumoto, Kenichiro"}],"nameIdentifiers":[{"nameIdentifier":"560113","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"中西 郁夫","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"560114","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"小澤 俊彦","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"560115","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"松本 謙一郎","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"560116","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":"conference paper","resourceuri":"http://purl.org/coar/resource_type/c_5794"}]},"item_title":"Redox Behavior of 2,2-Diphenyl-1-Picrylhydrazyl Radical (DPPH∙) Solubilized in Water by β-Cyclodextrin","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Redox Behavior of 2,2-Diphenyl-1-Picrylhydrazyl Radical (DPPH∙) Solubilized in Water by β-Cyclodextrin"}]},"item_type_id":"10003","owner":"1","path":["2"],"pubdate":{"attribute_name":"公開日","attribute_value":"2017-07-12"},"publish_date":"2017-07-12","publish_status":"0","recid":"54790","relation_version_is_last":true,"title":["Redox Behavior of 2,2-Diphenyl-1-Picrylhydrazyl Radical (DPPH∙) Solubilized in Water by β-Cyclodextrin"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-15T22:56:45.505543+00:00"}