Patent ID: 11930820
Assignee: KING FAISAL UNIVERSITY
Field: Basic materials chemistry (Chemistry)
Classification: CPC A  B  C | IPC A  B  C

Claim 0:
1. A method of controlling insect infestation of date palms, comprising applying to date palms an effective amount of silver nanoparticles prepared by a method comprising:
mixing a solution of chlorophyllin with a solution of silver nitrate to provide a silver solution;
heating the silver solution at a temperature of about 80° C. for about 3 hours to obtain a heated solution containing silver nanoparticles;
centrifuging the heated solution containing silver nanoparticles to separate initial silver nanoparticles from the heated solution;
redispersing the initial silver nanoparticles in water to obtain a silver nanoparticle dispersion; and
centrifuging the silver nanoparticle dispersion to obtain the silver nanoparticles.