Reversible and Sensitive Hg<sup>2+</sup> Detection by a Cell-Permeable Ytterbium Complex
作者:Guochen Bao、Shuai Zha、Zhenyu Liu、Yan-Ho Fung、Chi-Fai Chan、Hongguang Li、Pak-Ho Chu、Dayong Jin、Peter A. Tanner、Ka-Leung Wong
DOI:10.1021/acs.inorgchem.7b02243
日期:2018.1.2
A cell-permeable ytterbium complex shows reversible binding with Hg2+ in aqueous solution and in vitroby off–on visible and NIR emission. The fast response and 150 nM sensitivity of Hg2+ detection is based upon FRET and the lanthanide antenna effect. The reversible Hg2+ detection can be performed in vitro, and the binding mechanism is suggested by NMR employing the motif structure in a La complex and
Reaction‐Based Europium Complex for Specific Detection of Cysteine Over Homocysteine and Glutathione with Variable‐Temperature Kinetic Studies
作者:Yuk‐Wang Yip、Zhiyuan Yan、Ga‐Lai Law、Wing‐Tak Wong
DOI:10.1002/ejic.201801315
日期:2019.2.14
A water‐soluble europium(III)‐based probe, EuL, has been designed and synthesized for selective recognition of cysteine (Cys) over other structurally similar thiols and amino derivatives due to formation of a more stable and preferable seven‐membered ring. Addition of Cys shows a significant response with quenching of over 90 % of the initial signal (Hcys: 10.5 %, GSH: 3.6 % respectively). A good linear
Lanthanide Toolbox for Organelle Specific Molecular Imaging with Multi-color
申请人:New Life Medicine Technology Company Limited
公开号:US20190127393A1
公开(公告)日:2019-05-02
Provided herein are lanthanide complexes that exhibit specific subcellular localization to primary cilium. The lanthanide complexes provided herein are useful for imaging, tagging, and pull down of binding targets located in primary cilium.
[EN] LANTHANIDE TOOLBOX FOR ORGANELLE SPECIFIC MOLECULAR IMAGING<br/>[FR] BOÎTE À OUTILS À BASE DE LANTHANIDES POUR L'IMAGERIE MOLÉCULAIRE SPÉCIFIQUE D'ORGANITES
申请人:UNIV HONG KONG BAPTIST UNIV
公开号:WO2017202379A1
公开(公告)日:2017-11-30
A water soluble, simple, stable tris(N-(tert-butyl) acetamide) cyclen-based europium complex HGEU001 which exhibits the specific subcellular localization in the primary cilium with a quantum yield as high as 10% in water and a lifetime of 0.56ms lifetime. In particular, provided simplicity of the design and synthesis of a complex. Comprehensive studies were performed in numerous cell lines, such as Hela, SN-K-SH and MRC5; the motif structure, HGEU002, has also been synthesized as the negative control for in vitro imaging studies. The two photon in vitro imaging were done in three dimensions to emphasize on the specific localization in primary cilium of HGEu001. This is one of the very limited examples for direct primary cilium imaging.