The interest in synthesising inorganic nanomaterials for biological applications has increased in recent years, especially for antibacterial purposes. In the present study, spherical and cube-shaped copper nanoparticles were synthesised by a chemical reduction method and their efficacy as antimicrobial agents against both Gram-negative (Escherichia coli) and Gram-positive (Enterococcus sp.) organisms investigated. The nanoparticles were characterised using ultraviolet/visible spectroscopy, scanning electron microscopy, energy-dispersive spectroscopy and X-ray diffraction. Copper nanocubes were found to be more antimicrobial when compared with copper nanospheres, and it is postulated that whilst both sets of nanoparticles have similar total surface areas, the different shapes have different active facets and surface energies, which may lead to differing bactericidal behaviour.
This is a preview of subscription content, access via your institution.
Buy single article
Instant access to the full article PDF.
Tax calculation will be finalised during checkout.
W. Witte, Infect. Genet. Evol. 4, 187 (2004)
M.R. Brown, D.G. Allison, P. Gilbert, J. Antimicrob. Chemother. 22, 777 (1988)
C. Lu, M.J. Brauer, D. Botstein, Mol. Biol. Cell 20, 891 (2009)
G. Ren, D. Hu, E.W. Cheng, M.A. Vargas-Reus, P. Reip, R.P. Allaker, Int. J. Antimicrob. Agents 33, 587 (2009)
A. Jamshidi, M. Jahangiri, Asian J. Biol. Sci. 7, 183 (2014)
R.P. Allaker, J. Dent. Res. 89, 1175 (2010)
I. Subhankari, P.L. Nayak, World J. Nano Sci. Technol. 2, 10 (2013)
Z. Chen, H. Meng, G. Xing, C. Chen, Y. Zhao, G. Jia, T. Wang, H. Yuan, C. Ye, F. Zhao, Z. Chai, C. Zhu, X. Fang, B. Ma, L. Wan, Toxicol. Lett. 163, 109 (2006)
M. Ahamed, M.A. Siddiqui, M.J. Akhtar, I. Ahmad, A.B. Pant, H.A. Alhadlaq, Biochem. Biophys. Res. Commun. 396, 578 (2010)
N. Hanagata, F. Zhuang, S. Connolly, J. Li, N. Ogawa, M. Xu, ASC Nano 5, 9326 (2011)
K. Midander, P. Cronholm, H.L. Karlsson, K. Elihn, L. Möller, C. Leygraf, I. Odnevall-Wallinder, Small 5, 389 (2009)
Z. Lu, K. Rong, J. Li, H. Yang, R. Chen, J. Mater. Sci. Mater. Med. 24, 1465 (2013)
X. Hong, J. Wen, X. Xiong, Y. Hu, Environ. Sci. Pollut. Res. 5, 4489 (2016)
P. Gurav, S. Naik, K. Ansari, S. Srinath, K. Kishore, Colloids Surf. A 441, 589 (2014)
J. Sun, Y. Jing, Y. Jia, M. Tillard, C. Belin, Mater. Lett. 59, 3933 (2005)
S. Pal, Y.K. Tak, J.M. Song, Appl. Environ. Microbiol. 73, 1712 (2007)
G. Mie, Ann. Phys. 25, 377 (1976)
T. Theivasanthi, M. Alagar. arXiv preprint arXiv:1110.1372
D.W. Hatchett, S. Henry, J. Phys. Chem. 100, 9854 (1996)
B. Wiley, Y. Sun, B. Mayers, Y. Xia, Chem. Eur. J. 11, 454 (2005)
Available online at http://link.springer.com/journal/40195
About this article
Cite this article
Alshareef, A., Laird, K. & Cross, R.B.M. Chemical Synthesis of Copper Nanospheres and Nanocubes and Their Antibacterial Activity Against Escherichia coli and Enterococcus sp.. Acta Metall. Sin. (Engl. Lett.) 30, 29–35 (2017). https://doi.org/10.1007/s40195-016-0518-7
- Copper nanoparticles
- Scanning electron microscopy (SEM)
- Escherichia coli
- Enterococcus sp.