期刊
CHEMISTRY-A EUROPEAN JOURNAL
卷 -, 期 -, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.202300226
关键词
lanthanide; luminescence; metallacrown; near-infrared; optical imaging
By combining pyrazine- and quinoxaline-based hydroximate building blocks ligands, we created water-soluble mixed-ligand metallacrowns (MCs) with extended absorption to the visible range. The Yb-III analogue showed improved photophysical properties in the near-infrared (NIR) range in cell culture media, making it suitable for NIR optical imaging in living HeLa cells.
By combining advantages of two series of lanthanide(III)/zinc(II) metallacrowns (MCs) assembled using pyrazine- (pyzHA(2-)) and quinoxaline- (quinoHA(2-)) hydroximate building blocks ligands, we created here water-soluble mixed-ligand MCs with extended absorption to the visible range. The Yb-III analogue demonstrated improved photophysical properties in the near-infrared (NIR) range in cell culture media, facilitating its application for NIR optical imaging in living HeLa cells.
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