Fig. 2From: Ingestion of bivalve droppings by benthic invertebrates may lead to the transfer of nanomaterials in the aquatic food chainTEM images (high angular annular dark field, HAADF) of NPs and histograms of the particle size distribution. a AgNPs, indicated magnification 35 kx, scale bar shows 20 nm; b AgNPs, histogram based on 143 particles; c AuNPs, indicated magnification 30 kx, scale bar shows 0.1 µm; d AuNPs, histogram based on 172 particlesBack to article page