There are several mechanisms of the pupicidal activity of nanoparticles depending on the preparative method and the presence of capping ligand present on the nanoparticle surface. ROS generation by nanoparticles is one of the most common process to kill living bodies. you can see the following literature:

https://slideheaven.com/biolarvicidal-and-pupicidal-potential-of-silver-nanoparticles-synthesized-using-.html

https://pubag.nal.usda.gov/catalog/4787963

https://www.tandfonline.com/doi/full/10.1080/21691401.2016.1241793?scroll=top&needAccess=true#_i8

https://www.pagepressjournals.org/index.php/jear/article/view/1787/5516

Article Green synthesis of silver nanoparticles using Cadaba indica ...

Thank you Md. Abdur Rahman sir

I found reference pretty good and helpful

thanks for humble response.