期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 54, 期 39, 页码 11453-11456出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201505733
关键词
cation-pi interactions; copper; luminescence; peptides; terbium
资金
- Agence Nationale de la Recherche [ANR-12-BS07-0012-01]
- Labex ARCANE [ANR-11-LABX-0003-01]
A prototype luminescent turn-on probe for Cu+ (and Ag+) is described, harnessing a selective binding site (log K-ass = 9.4 and 7.3 for Cu+ and Ag+, respectively) based on the coordinating environment of the bacterial metallo-chaperone CusF, integrated with a terbium-ion-signaling moiety. Cation-pi interactions were shown to enhance tryptophan triplet population, which subsequently sensitized, on the microsecond timescale, the long-lived terbium emission, offering a novel approach in bioinspired chemosensor design.
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