TL;DR: The usage of brown alga (Bifurcaria bifurcata) from the biosynthesis of copper oxide nanoparticles of dimensions 5–45 nm is noted for The very first time and these nanoparticles have been located to show significant antibacterial action towards two distinctive strains of germs. According to the unique Attributes of optical https://www.directivepublications.org/journal-of-applied-nanoscience/