期刊
CHEMICAL SCIENCE
卷 10, 期 30, 页码 7228-7232出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c9sc01705d
关键词
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资金
- National Natural Science Foundation of China [21701160, 51672002, 51432001, 21871003]
- Anhui Provincial Natural Science Foundation of China [1708085MC68, 1908085MB30]
- Anhui University [S020118002/026]
- Returnees Innovation and Entrepreneurship Key Support Program
- Focus on Returned Overseas Scholar of Ministry of Education of China
- Hefei National Laboratory for Physical Sciences at the Microscale [KF2019002]
Multiphoton bioimaging benefits from good penetration of tissue, low phototoxicity and high resolution. Hence, development of efficient multiphoton imaging agents is highly desirable but remains challenging. Herein, a novel terpyridine-based Zn(ii) complex bearing a thiophene bridge was designed rationally and fabricated. Thanks to its aggregation-induced emission (AIE), DZ1 emitted bright yellow-green fluorescence (lambda(em) = 575 nm) under physiological conditions. The three-photon spectral changes of DZ1 when binding with RNA unambiguously reflected its RNA-specific targeting behaviour, resulting in twofold enhancement in three-photon action cross-sections located at the second near-infrared window (1700 nm).
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