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Biocompatible Luminescent Silicon Quantum Dots for Imaging of Cancer Cells
Open accessAbstract
Luminescent silicon quantum dots (Si QDs) have great potential for use in biological imaging and diagnostic applications. To exploit this potential, they must remain luminescent and stably dispersed in water and biological fluids over a wide range of pH and salt concentration. There have been many challenges in creating such stable water-dispersible Si QDs, including instability of photoluminescence due their fast oxidation in aqueous environments and the difficulty of attaching hydrophilic molecules to Si QD surfaces. In this paper, we report the preparation of highly stable aqueous suspensions of Si QDs using phospholipid micelles, in which the optical properties of Si nanocrystals are retained. These luminescent micelle-encapsulated Si QDs were used as luminescent labels for pancreatic cancer cells. This paves the way for silicon quantum dots to be a valuable optical probe in biomedical diagnostics.
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Cited by
New Generation Cadmium-Free Quantum Dots for Biophotonics and Nanomedicine
Xu, G., Zeng, S., Zhang, B., Swihart, M. T., Yong, K.-T., & Prasad, P. N. (2016) · Chemical Reviews · doi:10.1021/acs.chemrev.6b00290 · Cited by 587
Self-citationCheng, X., Lowe, S. B., Reece, P. J., & Gooding, J. J. (2014) · Chem. Soc. Rev. · doi:10.1039/c3cs60353a · Cited by 406
Dasog, M., De los Reyes, G. B., Titova, L. V., Hegmann, F. A., & Veinot, J. G. C. (2014) · ACS Nano · doi:10.1021/nn504109a · Cited by 334
Group IV Nanoparticles: Synthesis, Properties, and Biological Applications
Fan, J., & Chu, P. K. (2010) · Small · doi:10.1002/smll.201000543 · Cited by 288
Silicon quantum dots: surface matters
Dohnalová, K., Gregorkiewicz, T., & Kůsová, K. (2014) · Journal of Physics: Condensed Matter · doi:10.1088/0953-8984/26/17/173201 · Cited by 253
Metadata
- Authors
- Erogbogbo, F., Yong, K.-T., Roy, I., Xu, G., Prasad, P. N., & Swihart, M. T.
- Venue
- ACS Nano
- Publisher
- American Chemical Society (ACS)
- Published
- 2008-05-01
- Volume
- 2
- Issue
- 5
- Pages
- 873-878
- ISSN
- 1936-0851 (ISSN-L)
- 1936-086X
- OpenAlex
- W2064928735
- Cited by
- 684
- References
- 0
- FWCI
- 20.38
- Type
- journal article
- Language
- en
- Open access
- green
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- Erogbogbo, F., Yong, K.-T., Roy, I., Xu, G., Prasad, P. N., & Swihart, M. T. (2008). Biocompatible Luminescent Silicon Quantum Dots for Imaging of Cancer Cells. ACS Nano. https://doi.org/10.1021/nn700319z
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