Biosynthesis of Nanoparticles from Some Algal Species and Their Applications

Abstract

The experiments in this present investigation were carried out to study the ability of different algal species to produce nanoparticles. Two brown seaweed species, namely Cystoseira myrica (S.G. Gmelin) C. Agardh and Hormophysa triquetra (C. Agardh) Kutzing were collected from Egyptian Red Sea coast, mainly at Hurghada. Their extracts were used as reducing and stabilizer agent to synthesize nanoparticles. The green fresh water algal strain Scenedesmus quadricauda has been used to biosynthesize nanoparticles. The results showed that when Cystoseira myrica and Hormophysa triquetra algal extracts and Scenedesmus quadricauda algal biomass were mixed with 1mM solution of silver nitrate or copper sulphate and incubated, the color of the reaction mixture was changed.