| アイテムタイプ |
default_学術雑誌論文 / Journal Article(1) |
| タイトル |
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タイトル |
Cd^2+ -Selective Fluorescence Enhancement of Bisquinoline Derivatives with 2-Aminoethanol Skeleton |
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言語 |
en |
| 言語 |
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言語 |
eng |
| キーワード |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
2-aminoethanol |
| キーワード |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
cadmium |
| キーワード |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
fluorescence |
| キーワード |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
ligand effect |
| キーワード |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
quinoline |
| キーワード |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
sensor |
| キーワード |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
zinc |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| アクセス権 |
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アクセス権 |
metadata only access |
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アクセス権URI |
http://purl.org/coar/access_right/c_14cb |
| 著者 |
Yuji, Mikata
Tsuruta, Aya
Koike, Hinata
Shoji, Sunao
Konno, Hideo
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| 抄録 |
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内容記述タイプ |
Abstract |
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内容記述 |
The development of fluorescent Cd^2+ sensors requires strict selectivity over Zn^2+ because of the high availability of Zn^2+ in the natural environment. In this paper, bisquinoline-based fluorescent sensors with a 2-aminoethanol backbone were investigated. The weak coordination ability of quinoline compared to well-studied pyridine is suitable for Cd^2+ selectivity rather than Zn^2+. In the presence of 3 equiv. of metal ions, TriMeO-N,O-BQMAE (N,O-bis(5,6,7-trimethoxy-2-quinolylmethyl)-2-methylaminoethanol (3)), as well as its N,N-isomer TriMeO-N,N-BQMAE (N,N-bis(5,6,7-trimethoxy-2-quinolylmethyl)-2-methoxyethylamine (6)), exhibits Cd2+-selective fluorescence enhancement over Zn^2+ in DMF-HEPES buffer (1:1, 50 mM HEPES, 0.1 M KCl, pH = 7.5) (I_Zn/I_Cd = 26-34%), which has similar selectivity in comparison to the corresponding ethylenediamine derivative TriMeOBQDMEN (N,N'-bis(5,6,7-trimethoxy-2-quinolylmethyl)-N,N'-dimethylethylenediamine) under the same experimental condition (I_Zn/I_Cd = 24%). The fluorescence mechanisms of N,O- and N,N-isomers of BQMAE are quite different, judging from the fluorescence lifetimes of their metal complexes. The Cd^2+ complex with TriMeO-N,O-BQMAE (3) exhibits a long fluorescence lifetime similar to that of TriMeOBQDMEN via intramolecular excimer emission, whereas the Cd^2+ complex with TriMeO-N,N-BQMAE (6) exhibits a short lifetime from monomer emission. |
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言語 |
en |
| bibliographic_information |
en : Molecules
巻 29,
号 2,
p. 369,
発行日 2024-01-11
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| 出版者 |
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出版者 |
MDPI |
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言語 |
en |
| item_10001_source_id_9 |
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収録物識別子タイプ |
EISSN |
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収録物識別子 |
1420-3049 |
| item_10001_relation_14 |
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関連タイプ |
isIdenticalTo |
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識別子タイプ |
DOI |
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関連識別子 |
https://doi.org/10.3390/molecules29020369 |
| 権利 |
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権利情報 |
© 2024 by the authors |
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言語 |
en |
| 出版タイプ |
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出版タイプ |
NA |
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出版タイプResource |
http://purl.org/coar/version/c_be7fb7dd8ff6fe43 |
Publiser Site
