Biologically synthesized copper sulfide nanoparticles: Production and characterization

In the present research, copper sulfide nanoparticles were synthesized through a low-cost and environmentally friendly method using the fungus Fusarium oxysporum for the first time. The extracellularly generated nanoparticles were characterized by UV–vis, Florescence Spectroscopy, Fourier Transform Infrared Spectroscopy (FTIR), and Transmission Electron Microscopy (TEM). According to the UV–vis, Florescence and FTIR analysis, it was confirmed that the biosynthesized nanoparticles were created of copper sulfide composition. Moreover, from the morphological point of view, TEM images demonstrated that spherical particles having the size of 2–5 nm were entangled in spherical peptide shells which were about 20 nm in diameter.