Toxicity of single-walled carbon nanotubes on green microalga Chromochloris zofingiensis

Yan Wang; Kaijing Yang

doi:10.1007/s00343-013-2131-1

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Toxicity of single-walled carbon nanotubes on green microalga Chromochloris zofingiensis

Updated：2023-05-16

- Toxicity of single-walled carbon nanotubes on green microalga Chromochloris zofingiensis
- Journal of Oceanology and Limnology Vol. 31, Issue 2, Pages: 306-311(2013)
- Affiliations：
  
  Yantai Institute of Coastal Zone Research Chinese Academy of Sciences
- Author bio：
- Funds：
- DOI：10.1007/s00343-013-2131-1
  CLC：
- Online First：07 March 2013，
  
  Published：2013
- Accepted：
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Wang, Y., Yang, K. Toxicity of single-walled carbon nanotubes on green microalga Chromochloris zofingiensis, ., Chin. J. Ocean. Limnol. 31, 306–311 (2013). https://doi.org/10.1007/s00343-013-2131-1
DOI：

Wang, Y., Yang, K. Toxicity of single-walled carbon nanotubes on green microalga Chromochloris zofingiensis, ., Chin. J. Ocean. Limnol. 31, 306–311 (2013). https://doi.org/10.1007/s00343-013-2131-1 DOI：

摘要

Abstract

Nanoparticles

or particles in size of 1–100 nm

are extensively used in the world in different applications. For instance

single-walled carbon nanotubes (SWCNTs) are commonly used in consumer products

such as biosensors

drug and vaccine delivery transporters

and novel biomaterials. Although nanoparticles do not cause safety concerns to consumers who use nanoparticle-containing products

these small particles are potentially harmful for workers who produce them in factories or in cases of discharge to aquatic ecosystems. SWCNTs do not have a natural analogue

so the effects on health of their disposal remain largely unknown. In this study

we evaluated the effects of SWCNTs on a population of the green microalga Chromochloris zofingiensis and the profile and production of pigments and fatty acids. The alga was incubated with SWCNTs for 6 days in 0 (control)

160

or 320 mg/L concentrations. SWCNTs showed both positive and negative effects on the growth of C. zofingiensis

with a biomass enhancement at low levels (40–160 mg/L) but inhibition at high levels (320 mg/L). By contrast

a decreased accumulation of fatty acids and pigments of C. zofingiensis was observed over the range of the tested concentrations. These results indicate that the markers on the inhibitive toxicity of SWCNTs are increasingly sensitive in the following order: biomass and fatty acids < primary carotenoids < chlorophylls < secondary carotenoids. C. zofingiensis is a suitable microalga for evaluating the ecotoxicological hazards of SWCNTs

especially in terms of pigmentation response.

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references

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