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Acute toxicity of different sized (10, 30 and lOOnm) ZnO particles was investigated by intratracheal injection at the dose of 0.05 and 0.5g/kg body weight. The results of biochemical parameters assay, pathological examination and zinc accumulation showed main target organs for ZnO particles are demonstrated as lung, spleen, pancreas, bone and liver after exposure by intratracheal injection. But the...
In this paper, five naphthaquinones were regarded as research objects. The acute growth inhibition toxicities of naphthaquinones on Chlorella pyrenoidosa at 72h, expressed as median inhibit concentration (EC50) were determined. The results showed that these naphthaquinones were harmful, toxic and very toxic to C. pyrenoidosa. The active positions of these naphthoquinones acting on the biomacromolecule...
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