Elucidating the Toxic Mechanism of NiWO₄ to a Neotropical Microcrustacean: Experimental and Theoretical Insights.

ABSTRACT: In the present study, we describe the toxicity mechanism of nickel tungstate nanoparticles (NiWO₄ NPs) and present experimental and computational advancements achieved through a combined approach to evaluate the toxicity of this semiconductor in the freshwater aquatic organism Ceriodaphnia silvestrii (Cladocera). Results from the acute toxicity test indicated that NiWO₄ induced immobility in C. silvestrii at concentrations exceeding 40 mg L^-1 (Dunn's test, p < 0.05). The 48-h EC₅₀ was 33.76 mg L^-1 ± 5.67. The sublethal concentrations of NiWO₄, at 20 and 25 mg L^-1, significantly decreased the ingestion rates of C. silvestrii (Dunnett's test, p < 0.05), directly affecting cladocera

SUBMITTER: B de Abreu C 

PROVIDER: S-EPMC12784302 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature