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  Novel turn-on luminescent chemosensors selective to zinc ions

Wang, G., & Angelovski, G. (2019). Novel turn-on luminescent chemosensors selective to zinc ions. In M., Melnik, & P., Segľa (Eds.), Progressive Trends in Coordination, Bioinorganic, and Applied Inorganic Chemistry (pp. 120). Bratislava, Slovakia: Slovak Chemical Society.

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アイテムのパーマリンク: https://hdl.handle.net/21.11116/0000-0004-7946-6 版のパーマリンク: https://hdl.handle.net/21.11116/0000-0004-7947-5
資料種別: 会議抄録

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 作成者:
Wang, G1, 2, 著者           
Angelovski, G1, 2, 著者           
所属:
1Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497794              
2Research Group MR Neuroimaging Agents, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_2528691              

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 要旨: Zinc ions play an important role in many biological processes in human body [1]. To
recognize Zn2+ over other metal ions, two novel EuDO3A-based complexes EuL1-2
(DO3A – 1,4,7,10-tetraazacyclododecane-1,4,7-tricarboxylic acid) appended with the
tyrosine as chromophore and dipicolylamine as recognition moiety were developed as
suitable luminescent sensors. Without Zn2+, only weak luminescence of each complex
was observed due to the luminescence quenching by the photoinduced electron transfer
mechanism. After addition of Zn2+, both probes displayed large increase in the Eucentered
luminescent emission; in specific, the emission intensity reached 7-fold and
5-fold enhancement at 617 nm for EuL1 and EuL2, respectively (Figure 1). The ion
selectivity experiments demonstrated specificity of our probes toward Zn2+ over
other metal ions. Two additional complexes EuL3-4 without a
dipicolylamine-moiety were synthesized as references. Both of them did not show
obvious luminescent enhancement for any of the studied metal ions, showing the
essential role of the dipicolylamines for the recognition of Zn2+. The induced emission
changes of the Eu3+ allow precise quantitative analysis of this ion, establishing these
lanthanide-based complexes as useful chemosensors for potential biological applications.

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 日付: 2019-06
 出版の状態: オンラインで出版済み
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関連イベント

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イベント名: XXVI. International Conference on Coordination and Bioinorganic Chemistry: Progressive Trends in Coordination, Bioinorganic, and Applied Inorganic Chemistry
開催地: Smolenice, Slovakia
開始日・終了日: 2019-06-02 - 2019-06-07

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出版物 1

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出版物名: Progressive Trends in Coordination, Bioinorganic, and Applied Inorganic Chemistry
種別: 会議論文集
 著者・編者:
Melnik, M, 編集者
Segľa, P, 編集者
Tatarko, M, 著者
所属:
-
出版社, 出版地: Bratislava, Slovakia : Slovak Chemical Society
ページ: - 巻号: - 通巻号: - 開始・終了ページ: 120 識別子(ISBN, ISSN, DOIなど): ISBN: 978-80-8208-014-1