Unravelling the uptake pathway and accumulation of silver from manufactured silver nanoparticles in the freshwater amphipod Hyalella azteca using correlative microscopy

Toxicokinetics of pristine and aged silver nanoparticles in Physa acuta

“…However, these NPs have demonstrated some bioavailability and potential to cause hazardous effects. [27][28][29][30] It is fundamental for risk assessment to understand and evaluate the bioavailability and exposure of ENPs to organisms. Therefore, emphasis should be given to the determination of kinetic processes such as uptake, internal distribution and depuration of ENPs.…”

Are Fragrance Encapsulates Taken Up by Aquatic and Terrestrial Invertebrate Species?

“…Individuals were originally collected at a floodplain shoreline from the river Niers near Wachtendonk (47669, Germany) and kept in 1.5‐m 3 glass microcosms. The culture procedure is further described in Kuehr, Meisterjahn, et al (2020). A 2‐week acclimation phase was required before the organisms were used in the exposure tests.…”

“…The freshwater bivalve Corbicula fluminea was used as a representative filter feeder, whereas the benthic freshwater amphipod Hyalella azteca allows investigation of the aqueous and dietary exposure pathways. Both species have already been used to study the accumulation of nanomaterials (Kuehr, Kaegi, et al, 2020; Kuehr, Klehm, et al, 2020; Kuehr, Meisterjahn, et al, 2020) and microplastics (Au et al, 2015) and have been proposed as suitable test organisms for the bioaccumulation assessment of nanomaterials (Kuehr, Kosfeld, & Schlechtriem, 2021). In addition, they may be a suitable test species for particles in the micrometer range (Kuehr, Kosfeld, & Schlechtriem, 2021).…”

Gut-microbial adaptation and transformation of silver nanoparticles mediated the detoxification of Daphnia magna and their offspring

“…Considering the gut accumulation of Ag in zooplankton 82,83 , the sulfidation based gut-microbial transformation of Ag + and AgNPs may be crucial for its detoxification. For instance, due to its strong damage on the cell membrane and electron transfer, Ag showed significant effects on phytoplankton, especially the metabolic processes for photosynthesis and nitrogen fixation 84,85 .…”