TL;DR: The Use of brown alga (Bifurcaria bifurcata) in the biosynthesis of copper oxide nanoparticles of Proportions five–45 nm is documented for The very first time and these nanoparticles were uncovered to show large antibacterial activity against two different strains of micro organism. the editor(s) disclaim duty for any injuries https://www.directivepublications.org/journal-of-applied-nanoscience/