{"@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/1361137045946414720.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1021/ac9814041"}},{"identifier":{"@type":"URI","@value":"https://pubs.acs.org/doi/pdf/10.1021/ac9814041"}}],"dc:title":[{"@value":"Color Change Indicators for Molecules Using Methyl Red-Modified Cyclodextrins"}],"description":[{"notation":[{"@value":"β-Cyclodextrin derivatives, MRCD and p-MRCD, which have a 4-(dimethylamino)azobenzene moiety with a carbonyl substituent at 2‘ and 4‘ positions, respectively, have been prepared as color change indicators for detecting organic compounds. In a 10% ethylene glycol solution, MRCD and p-MRCD form intramolecular self-complexes in which the pendant dye moiety is included in the cyclodextrin cavity with an orientation parallel and perpendicular to the cyclodextrin axisis, respectively. When guest molecules are added to the acidic solutions of MRCD (pH 1.60) and p-MRCD (pH 2.40), they exhibit color changes from yellow to red for MRCD and from orange to red for p-MRCD. These color changes, which arise from the structural change of the dye moieties from the azo form to the azonium one, are caused when MRCD and p-MRCD undergo a conformational change in which the dye moieties inserted in the cyclodextrin cavities are excluded to outside of the cavities upon guest accommodation. The extent of the guest-induced color c..."}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1381137045946414721","@type":"Researcher","foaf:name":[{"@value":"Tetsuo Kuwabara"}],"jpcoar:affiliationName":[{"@value":"Department of Applied Chemistry and Biotechnology, Faculty of Engineering, Yamanashi University, 4 Takeda, Kofu 400-8511, Japan, and Department of Bioengineering, Faculty of Bioscience and Biotechnology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8501, Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1381137045946414723","@type":"Researcher","foaf:name":[{"@value":"Hiroki Nakajima"}],"jpcoar:affiliationName":[{"@value":"Department of Applied Chemistry and Biotechnology, Faculty of Engineering, Yamanashi University, 4 Takeda, Kofu 400-8511, Japan, and Department of Bioengineering, Faculty of Bioscience and Biotechnology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8501, Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1381137045946414722","@type":"Researcher","foaf:name":[{"@value":"Masato Nanasawa"}],"jpcoar:affiliationName":[{"@value":"Department of Applied Chemistry and Biotechnology, Faculty of Engineering, Yamanashi University, 4 Takeda, Kofu 400-8511, Japan, and Department of Bioengineering, Faculty of Bioscience and Biotechnology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8501, Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1381137045946414720","@type":"Researcher","foaf:name":[{"@value":"Akihiko Ueno"}],"jpcoar:affiliationName":[{"@value":"Department of Applied Chemistry and Biotechnology, Faculty of Engineering, Yamanashi University, 4 Takeda, Kofu 400-8511, Japan, and Department of Bioengineering, Faculty of Bioscience and Biotechnology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8501, Japan"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"00032700"},{"@type":"EISSN","@value":"15206882"}],"prism:publicationName":[{"@value":"Analytical Chemistry"}],"dc:publisher":[{"@value":"American Chemical Society (ACS)"}],"prism:publicationDate":"1999-06-08","prism:volume":"71","prism:number":"14","prism:startingPage":"2844","prism:endingPage":"2849"},"reviewed":"false","url":[{"@id":"https://pubs.acs.org/doi/pdf/10.1021/ac9814041"}],"createdAt":"2002-07-26","modifiedAt":"2021-10-17","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360848657418456960","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Determination of equilibrium structures of bromothymol blue revealed by using quantum chemistry with an aid of multivariate analysis of electronic absorption spectra"}]},{"@id":"https://cir.nii.ac.jp/crid/1390001204261462400","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Hyperchromisity and Molecular Recognition of a Novel Modified β-Cyclodextrin Tethering with Phenylaminoazobenzene"}]},{"@id":"https://cir.nii.ac.jp/crid/1390282679331603072","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Molecular Recognition of Dye-Modified Cyclodextrins with Different Cavity Size"},{"@language":"ja","@value":"空孔サイズの異なる色素修飾シクロデキストリンの分子認識"},{"@language":"ja-Kana","@value":"クウコウ サイズ ノ コトナル シキソ シュウショク シクロデキストリン ノ ブンシ ニンシキ"},{"@value":"空孔サイズの異なる色素修飾シクロデキストリンの分子認識(<特集>ナノ空間と分析化学)"}]},{"@id":"https://cir.nii.ac.jp/crid/1390282681232701440","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Interactive Force between Cyclodextrin Inclusion Complexes Studied by Atomic Force Microscopy."}]}],"dataSourceIdentifier":[{"@type":"CROSSREF","@value":"10.1021/ac9814041"},{"@type":"OPENAIRE","@value":"doi_dedup___::46b393f310f717f0e0f48fd36b5e9cef"},{"@type":"CROSSREF","@value":"10.2116/analsci.29.905_references_DOI_NIS50UgBixWseBciKRhKIILgQGI"},{"@type":"CROSSREF","@value":"10.2116/bunsekikagaku.54.503_references_DOI_NIS50UgBixWseBciKRhKIILgQGI"},{"@type":"CROSSREF","@value":"10.1143/jjap.40.4419_references_DOI_NIS50UgBixWseBciKRhKIILgQGI"},{"@type":"CROSSREF","@value":"10.1016/j.saa.2017.05.040_references_DOI_NIS50UgBixWseBciKRhKIILgQGI"}]}