Influence of Silver Fiber Morphology on the Dose-Response Relationship and Enrichment in Daphnia magna Studied by Elemental Imaging with LA-ICP-TOF-MS.

ABSTRACT: This study aims to enhance the understanding of the environmental risks associated with nanomaterials, particularly nanofibers. Previous research suggested that silver fibers exhibit higher toxicity (EC_50/48h 1.6-8.5 μg/L) compared to spherical silver particles (EC_50/48h 43 μg/L). To investigate the hypothesis that toxicity is influenced by the morphology and size of nanomaterials, various silver nanofibers with different dimensions (length and diameter) were selected. The study assessed their toxicity toward Daphnia magna using the 48 h immobilization assay. The EC₅₀ values for the different fibers ranged from 122 to 614 μg/L. Subsequently, the study quantified the uptake and distribution of two representative nanofibers in D. magna neonates

SUBMITTER: Steska T 

PROVIDER: S-EPMC10880099 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature