Abstract
The kingdom of interdisciplinary research is advancing forcefully; nanotechnology is one discipline that has impressed biologist, physicist, chemists, engineers and physicians. For studying the antimicrobial activity of nanomaterials, standard protocols that were used earlier for assessing the efficiency of antibiotics and compounds were taken for granted. The disc diffusion and well diffusion methods were ideally designed for studying bactericidal activity of diffusible compounds, mainly antibiotics and not for a particulate interaction based systems. A mere extrapolation of the testing method for testing nanoparticles, with an exclusion of the plate count method, appears to have stepped out of the fundamental principle whereby nanomaterials and microbes are required to interact. This report highlights the flaw in the results obtained from using disc/well diffusion methods for determining the bioactivity of nanomaterials, owing to the physical barrier between bacteria and the nanoparticles. A more realistic and reliable method, where the nanoparticles and microbial cells are put into an open base where they can freely interact is mandatory to assess toxicity/compatibility of nanomaterials. Failure in utilizing the apt testing mode, may eventually lead to declaring toxic nanomaterials as non-toxic and underestimating the antimicrobial ability of few other potent nanomaterials.
References
R. Feynman (1991). Science 254, 1300–1301.
K. Eric Drexler Engines of Creation: The Coming Era of Nanotechnology (Doubleday, New York, 1986). ISBN 0-385-19973-2.
K. Eric Drexler Nanosystems: Molecular Machinery, Manufacturing, and Computation (Wiley, New York, 1992). ISBN 0-471-57547-X.
R. Saini, S. Saini, and S. Sharma (2010). J. Cutan. Aesthet. Surg. 3, (1), 32–33.
C. Buzea, I. Pacheco, and K. Robbie (2007). Biointerphases 2, (4), MR17-71.
G. Binnig and H. Rohrer (1986). IBM J. Res. Dev. 30, (4), 355–369.
H. W. Kroto, J. R. Heath, S. C. O’Brien, R. F. Curl, and R. E. Smalley (1985). Nature 318, 162–163.
W. W. Adams and R. H. Baughman (2005). Science 310, (5756), 1916.
G. M. Whitesides (2005). Small 1, (2), 172–179.
J. Uldrich and D. Newberry The Next Big Thing Is Really Small: How Nanotechnology Will Change the Future (Crown Publishing Group, New York, 2003). ISBN 10: 1400046890/ISBN 13: 9781400046898.
U. Muthukumaran, M. Govindarajan, and M. Rajeswary (2015). Parasitol. Res. 114, 1817.
M. Zhang, M. Liu, H. Prest, and S. Fischer (2008). Nano Lett. 8, 1277.
S. H. Jeong, S. Y. Yeo, and S. C. Yi (2005). J. Mater. Sci. 40, 5407.
N. Savithramma, R. M. Linga, K. Rukmini, and D. P. Suvarnalatha (2011). Int. J. ChemTech. Res. 3, 1394.
A. Saxena, R. M. Tripathi, and R. P. Singh (2010). Dig. J. Nanomater. Biostruct. 5, 427.
G. Benelli and C. M. Lukehart (2017). J. Clust. Sci. 28, 1–2.
G. Benelli (2016). Enzyme Microb. Technol. 95, 58–68.
R. Rajan, K. Chandran, S. L. Harper, S. I. Yun, and P. T. Kalaichelvan (2015). Ind. Crops Prod. 70, 356–373.
G. Benelli (2017). Acta Trop. 178, 73–80.
G. Benelli, R. Pavela, F. Maggi, R. Petrelli, and M. Nicoletti (2017). J. Clust. Sci. 28, 3–10.
G. Benelli, F. Maggi, D. Romano, C. Stefanini, B. Vaseeharan, S. Kumar, A. Higuchi, A. A. Alarfaj, H. Mehlhorn, and A. Canale (2017). Ticks Tick Borne Dis. 8, (6), 821–826.
R. Kumar, M. Sharon, and A. K. Choudhary (2010). J. Phytol. 2, 83–92.
J. M. Hajipour, K. M. Fromm, A. A. Ashkarran, D. J. Aberasturi, I. R. Larramendi, T. Rojo, V. Serpooshan, W. J. Parak, and M. Mahmoudi (2012). Trend Biotechnol. 30, 499–511.
S. S. Zinjarde (2012). Chron. Young Sci. 3, 74–81.
P. L. Kashyap, S. Kumar, A. K. Srivastava, and A. K. Sharma (2013). World J. Microbiol. Biotechnol. 29, 191–207.
S. I. Galdiero, A. Falanga, M. Vitiello, M. Cantisani, V. Marra, and M. Galdiero (2011). Molecules 16, (10), 8894–8918.
S. Gunalan, R. Sivaraj, and V. Rajendran (2012). Prog. Nat. Sci. Mater. Int. 22, 693.
J. S. Devi and B. V. Bhimba (2012). Sci. Rep. 1, 242.
P. Swain, S. K. Nayak, A. Sasmal, T. Behera, S. K. Barik, S. K. Swain, S. S. Mishra, A. K. Sen, J. K. Das, and P. Jayasankar (2014). World J. Microbiol. Biotechnol. 30, 2491.
V. Patel, D. Berthold, P. Puranik, and M. Gantar (2015). Biotechnol. Rep. 5, 112.
T. T. Duong, et al. (2016). Adv. Nat. Sci: Nanosci. Nanotechnol. 7, 035018.
S. Chun, M. Muthu, E. Gansukh, P. Thalappil, and J. Gopal (2016). Sci. Rep. 6, 35586.
J. Gopal, M. Muthu, and S. Chun (2015). RSC Adv. 5, 48391–48398.
J. Gopal, H. N. Abdelhamid, J. H. Huang, and H. F. Wu (2016). Sens. Actuators B Chem. 224, 413–424.
J. Gopal, H. F. Wu, and G. Gangaraju (2011). J. Mater. Chem. 21, 13445–13451.
J. Gopal, H. F. Wu, and C. H. Lee (2011). Analyst 136, 5077–5083.
J. Gopal, J. Narayana, and H. F. Wu (2011). Biosens. Bioelectron. 27, 201–206.
J. Gopal, C. H. Lee, and H. F. Wu (2010). Anal. Chem. 82, 9617–9621.
N. G. Heatley (1944). Biochem. J. 38, 61–65.
CLSI, Performance Standards for Antimicrobial Disk Susceptibility Tests, Approved Standard, 7th edn., CLSI document M02-A11. Clinical and Laboratory Standards Institute, 950 West Valley Road, Suite 2500, Wayne, Pennsylvania 19087, USA, 2012.
CLSI, Method for Antifungal Disk Diffusion Susceptibility Testing of Yeasts, Approved Guideline. CLSI document M44-A. CLSI, 940 West Valley Road, Suite 1400, Wayne, Pennsylvania 19087-1898, USA, 2004.
S. Magaldi, S. Mata-Essayag, C. Hartung de Capriles, C. Perez, M. T. Colella, C. Olaizola, and Y. C. Ontiveros (2004). Int. J. Infect. Dis. 8, (1), 39–45.
C. Valgas, S. M. De Souza, E. F. A. Smânia, and A. Smânia (2007). Braz. J. Microbiol. 38, 369–380.
APHA Standard Methods for the Examination of Water and Wastewater, 14th ed (APHA, Washington, DC, 1989).
J. Gopal, M. Manikandan, N. Hasan, C. H. Lee, and H. F. Wu (2013). J. Mass Spectrom. 48, 119–127.
H. F. Wu, G. Judy, and M. Manikandan (2012). J. Mass Spectrom. 47, 355–363.
Y. N. Slavin, J. Asnis, U. O. Häfeli, and H. Bach (2017). J. Nanobiotechnol. 15, 65.
H. P. Borase, C. D. Patil, R. K. Suryawanshi, S. H. Koli, B. V. Mohite, G. Benelli, and S. V. Patil (2017). Bioprocess Biosyst. Eng. 40, 1437–1446.
G. D. Saratale, R. G. Saratale, G. Benelli, G. Kumar, A. Pugazhendhi, D. S. Kim, and H. S. Shin (2017). J. Clust. Sci. 28, (3), 1709–1727.
P. Venkatachalam, T. Kayalvizhi, J. Udayabanu, G. Benelli, and N. Geetha (2017). J. Clust. Sci. 28, (1), 607–619.
J. M. Khaled, N. S. Alharbi, S. Kadaikunnan, A. S. Alobaidi, M. N. Al-Anbr, K. Gopinath, and G. Benelli (2017). J. Clust. Sci. 28, (5), 3009–3019.
R. G. Saratale, G. Benelli, G. Kumar, D. S. Kim, and G. D. Saratale (2017). Environ. Sci. Pollut. Res. Int. 1–15. https://doi.org/10.1007/s11356-017-9581-5.
R. G. Saratale, H. S. Shin, G. Kumar, G. Benelli, G. S. Ghodake, Y. Y. Jiang, and G. D. Saratale (2017). Environ. Sci. Pollut. Res. Int. 1-14. https://doi.org/10.1007/s11356-017-8724-z.
B. Banumathi, B. Vaseeharan, R. Ishwarya, M. Govindarajan, N. S. Alharbi, S. Kadaikunnan, and G. Benelli (2017). Parasitol. Res. 6, (6), 1637–1651.
M. Abinaya, B. Vaseeharan, M. Divya, A. Sharmili, M. Govindarajan, N. Alharbi, and G. Benelli (2018). J Trace Elem. Med. Biol. 45, 93–103.
M. Składanowski, M. Wypij, and D. Laskowski (2017). J. Clust. Sci. 28, 59. https://doi.org/10.1007/s10876-016-1043-6.
J. Gopal, C. H. Lee, and H. F. Wu (2010). Anal. Chem. 82, 9617–9621.
J. Gopal, R. P. George, P. Muraleedharan, and H. S. Khatak (2004). Biofouling 20, 167–175.
Acknowledgements
This work is supported by the KU research professor program of Konkuk University.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Gopal, J., Chun, S., Anthonydhason, V. et al. Assays Evaluating Antimicrobial Activity of Nanoparticles: A Myth Buster. J Clust Sci 29, 207–213 (2018). https://doi.org/10.1007/s10876-018-1334-1
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10876-018-1334-1