Читать книгу Sustainable Nanotechnology - Группа авторов - Страница 65

Nowadays, there is an increase in environmental hazard due to insecticides, and limitation in the synthesis of novel, safe, and effective molecules has increased the demand of research in this field. Nanosilica with amorphous property can be an effective carrier for better functional pesticide. Insects protect themselves from dehydration using cutical lipids and prevent death of the pest. By the mechanism of physical absorption, the nanosilica absorbed into the cuticular lipid causes killing of insects and pest. As per World Health Organization (WHO), the use of amorphous form of silica is safe for oral consumption for humans [61, 62]. Spinosad is a newly developed environmentally friendly biopesticide with limitation of having short duration of action and less potency in farm. Zhang et al. worked with novel nanospinosad that uses porous NPs for loading of spinosad. This nanospinosad exhibits rough surface texture, which makes it unique for high adhesion behaviors of pest, which also gives high mortality rate of pest with improved photostability in fields [63].