• Dr. Savitha M Murthy
• Shravya, S
• Dr. Shalini B U

The nanoparticles which are synthesized in metallic form are very important in the present scenario because of its properties and its uses in various industries. In the present study, the cyanobacteria, species was used to synthesize the copper oxide nanoparticles by green method. The nanoparticles were synthesized from both wet and dry extracts of naturally grown cultures. The nanoparticles synthesized were characterized by UV – Visible absorption spectroscopy, Energy Dispersive X-ray (EDAX) and Scanning Electron Microscopy (SEM) studies. From the EDAX studies it was found that the elemental compounds present in the synthesized nanoparticles were copper and oxygen about 6.07% and 40.53% and 27.255 and 47.57% for wet and dry samples respectively. The size of the nanoparticles was observed from SEM analysis and it ranges from 82 nm to 106nm and 115nm to 125nm for wet and dry algal samples respectively. From the present study it was concluded that the nanoparticles synthesized using dry extract performed better compared to the wet extract.

Arthrospira, Biogenic synthesis, Copper oxide, Elements, Nanoparticles.

"BIOGENIC SYNTHESIS OF COPPER NANOPARTICLES FROM BLUE GREEN ALGA – ARTHROSPIRA MAXIMA AND ITS CHARACTERIZATION", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.9, Issue 11, page no.f546-f555, November-2022, Available :http://www.jetir.org/papers/JETIR2211570.pdf

"BIOGENIC SYNTHESIS OF COPPER NANOPARTICLES FROM BLUE GREEN ALGA – ARTHROSPIRA MAXIMA AND ITS CHARACTERIZATION", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.9, Issue 11, page no. ppf546-f555, November-2022, Available at : http://www.jetir.org/papers/JETIR2211570.pdf