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Journal of Nanomaterials
Volume 2014, Article ID 980545, 5 pages
Research Article

Synthesis of Copper Nanoparticles by Thermal Decomposition and Their Antimicrobial Properties

Departamento de Materiales Avanzados, Centro de Investigación en Química Aplicada, Boulevard Enrique Reyna Hermosillo No. 140, 25294 Saltillo, COAH, Mexico

Received 4 October 2013; Revised 23 November 2013; Accepted 23 November 2013; Published 15 January 2014

Academic Editor: William W. Yu

Copyright © 2014 R. Betancourt-Galindo et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Copper nanoparticles were synthesized by thermal decomposition using copper chloride, sodium oleate, and phenyl ether as solvent agents. The formation of nanoparticles was evidenced by the X-ray diffraction and transmission electron microscopy. The peaks in the XRD pattern correspond to the standard values of the face centered cubic (fcc) structure of metallic copper and no peaks of other impurity crystalline phases were detected. TEM analysis showed spherical nanoparticles with sizes in the range of 4 to 18 nm. The antibacterial properties of copper nanoparticles were evaluated in vitro against strains of Staphylococcus aureus and Pseudomonas aeruginosa. The antibacterial activity of copper nanoparticles synthesized by thermal decomposition showed significant inhibitory effect against these highly multidrug-resistant bacterial strains.