Structural and functional effects of Cu metalloprotein-driven silver nanoparticle dissolution.

  title={Structural and functional effects of Cu metalloprotein-driven silver nanoparticle dissolution.},
  author={Andrew J. Martinolich and Grace Y Park and Meagan Y Nakamoto and Rachel E. Gate and Korin E. Wheeler},
  journal={Environmental science & technology},
  volume={46 11},
Interactions of a model Cu-metalloprotein, azurin, with 10-100 nm silver nanoparticles (NPs) were examined to elucidate the role of oxidative dissolution and protein interaction on the biological reactivity of NPs. Although minimal protein and NP structural changes were observed upon interaction, displacement of Cu(II) and formation of Ag(I) azurin species under aerobic conditions implicates Cu(II) azurin as a catalyst of NP oxidative dissolution. Consistent with NP oxidation potentials… CONTINUE READING
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