Acute toxicity and damage of tissue from benzothiazole-based ionic liquids in zebrafish (Danio rerio)

摘要

Ionic liquids (IL) have attracted recent more attention to consider adverse impact on living organisms and ecosystems. This study used took zebrafish as an aquatic living model for investigating the acute toxicity of benzothiazole-based ILs on fish. Zebrafish were exposed to five different concentrations of four neutral and one acidic IL solutions respectively for 24 h. The 50% lethal concentration for each the IL was calculated. The treated zebrafish samples were further dissected for preliminary histological examination. It indicated the long-chain of cation ILs were more toxic than the short-chain ones and the acidic ILs are more toxic than the neutral ILs to superficial and internal organs of zebrafish.