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Cited by 557

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Boosting the down-shifting luminescence of rare-earth nanocrystals for biological imaging beyond 1500 nm

Open access
Zhong, Yeteng, Ma, Zhuoran, Zhu, Shoujun, Yue, Jingying, Zhang, Mingxi, Antaris, Alexander L., Yuan, Jie, Cui, Ran, Wan, Hao, Zhou, Ying, Wang, Weizhi, Huang, Ngan F., Luo, Jian, Hu, Zhiyuan, Dai, Hongjie·2017·Nature Communications

Abstract

In vivo fluorescence imaging in the near-infrared region between 1500–1700 nm (NIR-IIb window) affords high spatial resolution, deep-tissue penetration, and diminished auto-fluorescence due to the suppressed scattering of long-wavelength photons and large fluorophore Stokes shifts. However, very few NIR-IIb fluorescent probes exist currently. Here, we report the synthesis of a down-conversion luminescent rare-earth nanocrystal with cerium doping (Er/Ce co-doped NaYbF 4 nanocrystal core with an inert NaYF 4 shell). Ce doping is found to suppress the up-conversion pathway while boosting down-conversion by ~9-fold to produce bright 1550 nm luminescence under 980 nm excitation. Optimization of the inert shell coating surrounding the core and hydrophilic surface functionalization minimize the luminescence quenching effect by water. The resulting biocompatible, bright 1550 nm emitting nanoparticles enable fast in vivo imaging of blood vasculature in the mouse brain and hindlimb in the NIR-IIb window with short exposure time of 20 ms for rare-earth based probes.

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Metadata

Authors
Zhong, Y., Ma, Z., Zhu, S., Yue, J., Zhang, M., Antaris, A. L., Yuan, J., Cui, R., Wan, H., Zhou, Y., Wang, W., Huang, N. F., Luo, J., Hu, Z., & Dai, H.
Venue
Nature Communications
Published
2017-09-29
Volume
8
Issue
1
Pages
737-737
ISSN
2041-1723 (ISSN-L)
OpenAlex
W2760538791
Cited by
557
References
5
FWCI
21.34
Type
journal article
Language
en
Open access
gold

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CoChat. (2026). Citation check: Boosting the down-shifting luminescence of rare-earth nanocrystals for biological imaging beyond 1500 nm. https://app.cochat.ai/papers/10.1038/s41467-017-00917-6
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Zhong, Y., Ma, Z., Zhu, S., Yue, J., Zhang, M., Antaris, A. L., Yuan, J., Cui, R., Wan, H., Zhou, Y., Wang, W., Huang, N. F., Luo, J., Hu, Z., & Dai, H. (2017). Boosting the down-shifting luminescence of rare-earth nanocrystals for biological imaging beyond 1500 nm. Nature Communications. https://doi.org/10.1038/s41467-017-00917-6

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