Cited by 147Quantum Dots Synthesis And PropertiesNanoparticle-Based Drug DeliveryHeavy Metal Exposure and Toxicity

The role of surface chemistry in determining in vivo biodistribution and toxicity of CdSe/ZnS core–shell quantum dots

Tang, Yuan, Han, Songling, Liu, Hongmei, Chen, Xin, Huang, Li, Li, Xiaohui, Zhang, Jianxiang·2013·Biomaterials

Abstract

To examine the effect of surface chemistry and surface charge on in vivo biodistribution and toxicity of CdSe/ZnS core-shell quantum dots (QDs), QDs with positive, negative, or PEG coating are used in this study for in vivo evaluation in a mouse model. The results suggest that QDs coated with cationic polydiallyldimethylammonium chloride (PDDA) preferentially deposit in the lung other than in the liver, while the negative and PEGylated QDs render abundant accumulation in the liver. At higher doses positive QDs with PDDA coating show severe acute toxicity due to pulmonary embolism. Independent of their surface coatings, all QDs cause injuries in specific tissues like liver, spleen, lung, and kidney, after acute and long-term exposure, and the degree of injuries is dominated by their surface properties. For the positively charged QDs, the acute phase toxicity is primarily contributed by the coating material PDDA, while coating on QDs may amplify both in vitro and in vivo toxicity of PDDA. PEGylated QDs display the slightest chronic injuries in the long-term toxicity examination in comparison to positive or negative ones.

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Crossref · 10.1016/j.biomaterials.2013.07.087

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Authors
Tang, Y., Han, S., Liu, H., Chen, X., Huang, L., Li, X., & Zhang, J.
Affiliations
Army Medical University (CN)
Corresponding author
  • Li, Xiaohui
  • Zhang, Jianxiang
Venue
Biomaterials
Publisher
Elsevier BV
Published
2013-11
Volume
34
Issue
34
Pages
8741-8755
ISSN
0142-9612 (ISSN-L)
OpenAlex
W2043907486
Cited by
147
References
66
Citations by year
2026: 4 · 2025: 6 · 2024: 4 · 2023: 11 · 2022: 16 · 2021: 8 · 2020: 17 · 2019: 16 · 2018: 12 · 2017: 11 · 2016: 18 · 2015: 13 · 2014: 9 · 2013: 2
FWCI
6.31
Type
journal article
Language
en
Open access
closed
Locations
  • Biomaterials (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Natural Science Foundation of China (81271695)
Topics
  • Physical Sciences › Materials Science › Materials Chemistry › Quantum Dots Synthesis And Properties
  • Physical Sciences › Materials Science › Biomaterials › Nanoparticle-Based Drug Delivery
  • Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Heavy Metal Exposure and Toxicity
Keywords
CdSe/ZnS quantum dots, surface chemistry, surface charge, tissue distribution, acute toxicity, chronic toxicity, PEGylation, poly(diallyldimethylammonium chloride), pulmonary embolism, lung deposition, liver accumulation, tissue damage, nanoparticle coating
MeSH terms
Quaternary Ammonium Compounds, Animals, Lethal Dose 50, Liver, Lung, Male, Mice, Inbred BALB C, Polyethylenes, Sulfides, Surface Properties, Tissue Distribution, Drug Delivery Systems, Zinc Compounds, Selenium Compounds, Cadmium Compounds, Quantum Dots, Nanomedicine, Mice

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