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Ecotoxicity and uptake of polymer coated gold nanoparticles

(2013) NANOTOXICOLOGY. 7(1). p.37-47
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Abstract
Bioconjugated gold nanoparticles (NPs) are a promising tool for pharmaceutical applications. However, the ecotoxicity of these types of NPs has hardly been studied . We investigated the ecotoxicity and uptake of 4-5 nm Au NPs to which two types of polymer coatings were attached. One coating was an amphiphilic polymer only and the other an amphiphilic coating to which 10 kDa polyethylene glycol (PEG) chains were attached. In both 72 h algal growth inhibition tests with the alga Pseudokirchneriella subcapitata and in 24 h resazurin cytotoxicity tests with the rainbow trout gill cell line RTGill-W1 the pegylated Au NPs were found less toxic compared to the amphiphilic coated particles. No uptake or direct interaction between particles and algal cells was observed. However, uptake/adsorption in fish gill cells reached up to >10^6 particles/cell after 1 h and particles were eliminated for ≥ 96 % after 24 h depuration. Both particle types were found within membrane enclosed vesicles in the cytoplasm of RTgill-W1 cells.
Keywords
RTGill-W1, nanoparticles, algae, surface chemistry, Environmental toxicology, COLLOIDAL NANOPARTICLES, DAPHNIA-MAGNA, SIZE, TOXICITY, WATER, CYTOTOXICITY, CELLS, NANOMATERIALS, EXPOSURE, EXCHANGE

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Chicago
Van Hoecke, Karen, Karel De Schamphelaere, Zulqurnain Ali, Feng Zhang, Andreas Elsaesser, Pilar Rivera-Gil, Wolfgang Parak, Guy Smagghe, Vyvyan Howard, and Colin Janssen. 2013. “Ecotoxicity and Uptake of Polymer Coated Gold Nanoparticles.” Nanotoxicology 7 (1): 37–47.
APA
Van Hoecke, K., De Schamphelaere, K., Ali, Z., Zhang, F., Elsaesser, A., Rivera-Gil, P., Parak, W., et al. (2013). Ecotoxicity and uptake of polymer coated gold nanoparticles. NANOTOXICOLOGY, 7(1), 37–47.
Vancouver
1.
Van Hoecke K, De Schamphelaere K, Ali Z, Zhang F, Elsaesser A, Rivera-Gil P, et al. Ecotoxicity and uptake of polymer coated gold nanoparticles. NANOTOXICOLOGY. 2013;7(1):37–47.
MLA
Van Hoecke, Karen, Karel De Schamphelaere, Zulqurnain Ali, et al. “Ecotoxicity and Uptake of Polymer Coated Gold Nanoparticles.” NANOTOXICOLOGY 7.1 (2013): 37–47. Print.
@article{1243848,
  abstract     = {Bioconjugated gold nanoparticles (NPs) are a promising tool for pharmaceutical applications. However, the ecotoxicity of these types of NPs has hardly been studied . We investigated the ecotoxicity and uptake of 4-5 nm Au NPs to which two types of polymer coatings were attached. One coating was an amphiphilic polymer only and the other an amphiphilic coating to which 10 kDa polyethylene glycol (PEG) chains were attached. In both 72 h algal growth inhibition tests with the alga Pseudokirchneriella subcapitata and in 24 h resazurin cytotoxicity tests with the rainbow trout gill cell line RTGill-W1 the pegylated Au NPs were found less toxic compared to the amphiphilic coated particles. No uptake or direct interaction between particles and algal cells was observed. However, uptake/adsorption in fish gill cells reached up to {\textrangle}10\^{ }6 particles/cell after 1 h and particles were eliminated for \ensuremath{\geq} 96 \% after 24 h depuration. Both particle types were found within membrane enclosed vesicles in the cytoplasm of RTgill-W1 cells.},
  author       = {Van Hoecke, Karen and De Schamphelaere, Karel and Ali, Zulqurnain and Zhang, Feng and Elsaesser, Andreas and Rivera-Gil, Pilar and Parak, Wolfgang and Smagghe, Guy and Howard, Vyvyan and Janssen, Colin},
  issn         = {1743-5390},
  journal      = {NANOTOXICOLOGY},
  keyword      = {RTGill-W1,nanoparticles,algae,surface chemistry,Environmental toxicology,COLLOIDAL NANOPARTICLES,DAPHNIA-MAGNA,SIZE,TOXICITY,WATER,CYTOTOXICITY,CELLS,NANOMATERIALS,EXPOSURE,EXCHANGE},
  language     = {eng},
  number       = {1},
  pages        = {37--47},
  title        = {Ecotoxicity and uptake of polymer coated gold nanoparticles},
  url          = {http://dx.doi.org/10.3109/17435390.2011.626566},
  volume       = {7},
  year         = {2013},
}

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