The Facile Preparation and the Performance of Killing Oncomelania Snails of Zinc Oxide Nanoparticles

The controlled synthesis of the pill shape ZnO nanoparticles with average particle size of about 75nm, which using cetyltrimethylammo-nium bromide (CTAB) as the morphology control agent and under facile conditions. The morphologies, structures and optical property of the product were characterized by SEM, XRD and FT-IR, etc. The ZnO nanoparticles were explored to kill snails the first time so that the prevention and cure of schistosomiasis from the source. The experiments demonstrated that the ZnO nanoparticles had an effective performance to kill oncomelania snails. The decreased glycogen content of snails was speculated on the main reason of their death. When the concentration of ZnO nanoparticles aqueous solution was 80 mg/L, the mortality rate could reach 96%.