| 초록 |
A silver nanoparticles (AgNPs) are representative engineered nanomaterials with optical, electrical, antibacterial properties. AgNPs are being increasingly used for medical products, water filters, and cosmetics, etc. However, silver nanoparticles are known to cause adverse effects on the ecosystem and human health. To utilize silver nanoparticles with minimized negative effects, it is important to understand the behavior of silver nanoparticles released to the environment. In this study, we compared toxicity behaviors of citrate-stabilized AgNPs (AgNPs-Cit) with polyethylene glycol coated AgNPs (AgNPs-PEG) in two different ionic environments, which are aquatic environments for development zebrafish embryo. Depending on the composition of the ionic environment, AgNP-Cit and AgNP-PEG exhibited different behaviors in dissolution, aggregation or precipitation, which governed the toxicity of AgNPs on zebrafish embryos. This study will provide the insight into the understanding of nanomaterials behavior in environments and clue to minimize the influence on organisms. |
