Antimicrobial Activity of the Synthesized of Copper Chalcogenide Nanoparticles

Antimicrobial activity of copper chalcogenides nanoparticles was investigated by synthesizing selenide, sulfide, and oxide via the hot-injection method. Since reaction time has a profound effect on nanocrystals size shapes, also during synthesis to obtain with desired properties. The showed no phase composition synthesized oxide, selenide nanoparticles. However, variation different observed. Reaction 30 minutes gave best optical (the shape absorption band edge emission maxima values) structural (size distribution particles) properties for CuSe CuS compared other times (15, 45, 60 min). Their edges were located at 506 (2.45 eV) 538 nm (2.30 eV), respectively. For this time, produced range 1–27 sulfide ranged 1–18 nm. morphologies both min spherical. 15 454 (2.73 particle ranging 0.8–3.2 nm, but nonetheless, used as optimum all three chalcogenides. parameter (220°C, min, 1 : ratio) synthesize which then tested against Gram-negative (E. coli P. aeruginosa), Gram-positive (S. aureus E. faecalis), fungi (C. albicans) employing agar disk diffusion minimum inhibitory concentration (MICs) methods. Copper more sensitivity towards four bacterial microorganisms than two followed being least sensitive. is attributed smaller oxygen atom strongly affects its reactivity stability hence very stable highly reactive sulfur selenium.