期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 139, 期 25, 页码 8388-8391出版社
AMER CHEMICAL SOC
DOI: 10.1021/jacs.7b01587
关键词
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资金
- European Community [316906, 611488]
- La Ligue Contre le Cancer
- La Region Centre
- Reseau Canaux Ioniques du Canceropole du Grand Ouest
- Agence Nationale de la Recherche [ANR-13-BSV5-009, ANR-12-BS07-0012]
- U.S. National Science Foundation [CH-1361779]
- Institut National de la Sante et de la Recherche Medicale (INSERM)
- Agence Nationale de la Recherche (ANR) [ANR-12-BS07-0012] Funding Source: Agence Nationale de la Recherche (ANR)
- Direct For Mathematical & Physical Scien [1361779] Funding Source: National Science Foundation
- Division Of Chemistry [1361779] Funding Source: National Science Foundation
Sensitive detection of cell necrosis is crucial for the determination of cell viability. Because of its high resolution at the cellular level and sensitivity, optical imaging is highly attractive for identifying cell necrosis. However, challenges associated with this technique remain present such as the rapid photobleaching of several types of organic fluorophores and/or the interference generated by biological autofluorescence. Herein, we synthesized novel biologically compatible-Zn2+/Ln(3+) metallacrowns (MCs) that, possess attractive near-infrared (NIR) emission and are highly photostable. In addition, these MCs have the ability to label differentially necrotic HeLa cells, from, living cells. This work is also the first demonstration of (I) the use of the NIR emission arising from a single lanthanide(III) cation for optical biological imaging of cells under single photon excitation, (ii) the first example of a lanthanide(III)-based NIR-emitting probe that can be targeted to a specific type of cell.
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