@article{fdi:010087714,
  title = {{A}ging of copper nanoparticles in the marine environment regulates toxicity for a coastal phytoplankton species},
  author = {{V}ignardi, {C}. {P}. and {A}deleye, {A}. {S}. and {K}ayal, {M}ohsen and {O}ranu, {E}. and {M}iller, {R}. {J}. and {K}eller, {A}. {A}. and {H}olden, {P}. {A}. and {L}enihan, {H}. {S}.},
  editor = {},
  language = {{ENG}},
  abstract = {{E}nvironmental conditions in aquatic ecosystems transform toxic chemicals over time, influencing their bioavailability and toxicity. {U}sing an environmentally relevant methodology, we tested how exposure to seawater for 1-15 weeks influenced the accumulation and toxicity of copper nanoparticles (nano-{C}u) in a marine phytoplankton species. {N}ano-{C}u rapidly agglomerated in seawater and then decreased in size due to {C}u dissolution. {D}issolution rates declined during weeks 1-4 and remained low until 15 weeks, when the large agglomerates that had formed began to rapidly dissolve again. {M}arine phytoplankton species were exposed for 5-day periods to nano-{C}u aged from 1 to 15 weeks at concentrations from 0.01 to 20 ppm. {T}oxicity to phytoplankton, measured as change in population growth rate, decreased significantly with particle aging from 0 to 4 weeks but increased substantially in the 15-week treatment due apparently to elevated {C}u dissolution of reagglomerated particles. {R}esults indicate that the transformation, fate, and toxicity of nano-{C}u in marine ecosystems are influenced by a highly dynamic physicochemical aging process.},
  keywords = {engineered nanomaterials ; environmental conditions ; aging ; copper ; nanoparticles ; marine phytoplankton ; ecotoxicity},
  booktitle = {},
  journal = {{E}nvironmental {S}cience and {T}echnology},
  volume = {57},
  numero = {17},
  pages = {6989--6998},
  ISSN = {0013-936{X}},
  year = {2023},
  DOI = {10.1021/acs.est.2c07953},
  URL = {https://www.documentation.ird.fr/hor/fdi:010087714},
}