Читать книгу Nano-Technological Intervention in Agricultural Productivity - Javid A. Parray - Страница 45

The ecotoxicity of zebras (Danio rerio) under various salinity conditions for unprocessed, one‐, and double‐wall carbon nanotubes. In zebrafish embryos, single‐walled carbon nanotubes (SWCNTs) have substantial delays in hatching at concentrations above 120 mg/l. Two‐walled carbon nanotubes also provided a hatching delay of more than 240 mg/l. Carbon black did not affect hatching, however. SWCNT concentrations of up to 360 mg/l [21] have not affected embryo development. In the Rainbow Trout experiment, prepared with surfactant sodium dodecyl sulfate (SDS) and sonicity [22], a dose‐dependent increase in ventilation rates and gill pathology (oedema, altered monocytes, and hyperplasia) at concentrations between 0.1 and 0.5 mg/l was observed. The authors concluded that the trout's SWCNTs might act as a respiratory toxicant and precipitate gill mucus. However, this did not have a significant effect on death, development, or reproduction [23].