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Self-Illuminating 64Cu-Doped CdSe/ZnS Nanocrystals for in Vivo Tumor Imaging
Open accessAbstract
Construction of self-illuminating semiconducting nanocrystals, also called quantum dots (QDs), has attracted much attention recently due to their potential as highly sensitive optical probes for biological imaging applications. Here we prepared a self-illuminating QD system by doping positron-emitting radionuclide (64)Cu into CdSe/ZnS core/shell QDs via a cation-exchange reaction. The (64)Cu-doped CdSe/ZnS QDs exhibit efficient Cerenkov resonance energy transfer (CRET). The signal of (64)Cu can accurately reflect the biodistribution of the QDs during circulation with no dissociation of (64)Cu from the nanoparticles. We also explored this system for in vivo tumor imaging. This nanoprobe showed high tumor-targeting ability in a U87MG glioblastoma xenograft model (12.7% ID/g at 17 h time point) and feasibility for in vivo luminescence imaging of tumor in the absence of excitation light. The availability of these self-illuminating integrated QDs provides an accurate and convenient tool for in vivo tumor imaging and detection.
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Cited by
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Chen, H., Gu, Z., An, H., Chen, C., Chen, J., Cui, R., Chen, S., Chen, W., Chen, X., Chen, X., et al. (2018) · Science China Chemistry · doi:10.1007/s11426-018-9397-5 · Cited by 409
Self-citationSong, J., Yang, X., Jacobson, O., Lin, L., Huang, P., Niu, G., Ma, Q., & Chen, X. (2015) · ACS Nano · doi:10.1021/acsnano.5b03804 · Cited by 319
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Metadata
- Authors
- Sun, X., Huang, X., Guo, J., Zhu, W., Ding, Y., Niu, G., Wang, A., Kiesewetter, D. O., Wang, Z. L., Sun, S., & Chen, X.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2014-01-17
- Volume
- 136
- Issue
- 5
- Pages
- 1706-1709
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W2223071637
- Cited by
- 172
- References
- 0
- FWCI
- 9.83
- Type
- journal article
- Language
- en
- Open access
- hybrid
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- Sun, X., Huang, X., Guo, J., Zhu, W., Ding, Y., Niu, G., Wang, A., Kiesewetter, D. O., Wang, Z. L., Sun, S., & Chen, X. (2014). Self-Illuminating 64Cu-Doped CdSe/ZnS Nanocrystals for in Vivo Tumor Imaging. Journal of the American Chemical Society. https://doi.org/10.1021/ja410438n
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