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Evaluation of Quantum Dot Cytotoxicity Based on Intracellular Uptake
Abstract
Nanoparticles, such as quantum dots (QDs), composed of biologically toxic materials degrade in highly oxidative environments. Varying the QD surface coating significantly affects the intracellular uptake of QDs. Although the addition of PEG does not alter the inherent QD cytotoxicity, we demonstrate that the improved biocompatibility due to PEG-substitution arises from decreased intracellular uptake, which allows for biological applications of QDs with minimal toxicity. The image shows the live/dead reagent stain used to quantitate cytotoxicity. PEG: poly(ethylene glycol).
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Biological applications of quantum dots
Jamieson, T., Bakhshi, R., Petrova, D., Pocock, R., Imani, M., & Seifalian, A. M. (2007) · Biomaterials · doi:10.1016/j.biomaterials.2007.07.014 · Cited by 1,107
Multimodality Imaging Probes: Design and Challenges
Louie, A. (2010) · Chemical Reviews · doi:10.1021/cr9003538 · Cited by 1,044
Quantum dots: bright and versatile in vitro and in vivo fluorescence imaging biosensors
Wegner, K. D., & Hildebrandt, N. (2015) · Chemical Society Reviews · doi:10.1039/c4cs00532e · Cited by 984
Fadeel, B., & Garcia-Bennett, A. E. (2010) · Advanced Drug Delivery Reviews · doi:10.1016/j.addr.2009.11.008 · Cited by 783
Lee, J., Mahendra, S., & Alvarez, P. J. J. (2010) · ACS Nano · doi:10.1021/nn100866w · Cited by 750
Metadata
- Authors
- Chang, E., Thekkek, N., Yu, W. W., Colvin, V. L., & Drezek, R.
- Venue
- Small
- Publisher
- Wiley
- Published
- 2006-10-27
- Volume
- 2
- Issue
- 12
- Pages
- 1412-1417
- ISSN
- 1613-6810 (ISSN-L)
- 1613-6829
- OpenAlex
- W2122483392
- Cited by
- 370
- References
- 0
- FWCI
- 17.14
- Type
- journal article
- Language
- en
- Open access
- closed
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- Chang, E., Thekkek, N., Yu, W. W., Colvin, V. L., & Drezek, R. (2006). Evaluation of Quantum Dot Cytotoxicity Based on Intracellular Uptake. Small. https://doi.org/10.1002/smll.200600218
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