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. 2022 May 4;9(20):2105957. doi: 10.1002/advs.202105957

Figure 1.

Figure 1

Biological cycling of gold. A–D) TEM images of aurosomes resulting from treatments of gold salts. Reproduced with permission.[ 19i ] Copyright 1981, Elsevier. E) Schematic of the geobiological cycle of gold with scanning electron microscopy of Cupriavidus metallidurans biofilm with highlight of nanoparticle‐cell associations. E–G) Reproduced under the terms of the Creative Commons CC‐BY license.[ 17f ] Copyright 2013, The Authors. Licensee by MDPI. H) TEM of GNPs applied to primary human fibroblasts and I) the cells after 2 weeks of incubation. Reproduced under the terms of the Creative Commons CC‐BY license.[ 27b ] Copyright 2019, National Academy of Science.