OLIGODYNAMIC EFFECT OF PRECIOUS METALS ON SKIN BACTERIA
Abstract
The oligodynamic hold of gold and silver is extant and extremely relevant as a proactive measure against infections. The antimicrobial effect of gold and silver jewelries was determined on skin bacteria by introducing them into culture plates already inoculated with bacterial isolates; Staphylococcus aureus, Staphylococcus epidermidis and Pseudomonas aeruginosa from the wrist, neck and ear regions of the skin. Samples were collected by swab sampling and isolates were identified by their cultural morphology and biochemical characterization. Results showed that both precious metals were able to inhibit all three bacteria with silver jewelries giving wider zones of inhibition measuring between 3 mm to 7 mm while gold jewelries gave zones of inhibition between 1 mm to 4 mm. The culture plates containing Pseudomonas aeruginosa recorded the highest zone of inhibition while the least was observed in the culture plates that contained Staphylococcus epidermidis. No zone of inhibition was observed with ordinary golden-coloured and silver-coloured jewelries which served as negative control. This study showed that gold and silver are oligodynamic with silver having a higher oligodynamic efficacy on the skin bacteria tested
Key Words:
Precious metals, Oligodynamic efficacy, Skin bacteria
References
Benson, H.J. (2002). Microbiological applications: Laboratory manual in general microbiology. 8th Edition. McGraw Hill: New York.
Chiller, K., Selkin, B.A. and Murakawa, G.J. (2001). “Skin Microflora and Bacterial Infections of the Skinâ€. The Society for Investigative Dermatology, Inc.1087-0024/01/
Cogen, A., Nizet, V., and Gallo, R.L. (2008). “Skin microbiota: a source of disease or defence?†The Journal of Dermatology, 158 (3): 442-55.
Cowan, M.K. (2012). Microbiology: A systems Approach. 3rd Ed. Pp.320-321. ISBN 978-0- 07-352252-4.
Darouiche, R.O., Raad, I. I., Heard, S.O., Thornby, J. I., Wenker, O. C., and Gabrielli, A. (1999). A comparison of two antimicrobial-impregnated central venous catheters. Catheter Study Group. New England Journal of Medicine. (340): 1.
Dean, J. (2016). Filling vs. inlay vs. onlay vs. crown: what’s the difference and which is the right one for you? Rancho Santafe Cosmetic and Family Dentistry. https://www.rsfdentist.com/about-us
Duran, N., Marcarto, P.D., De Souza, G. I. H., Alves O. L., and Esposito, E. (2007).Antibacterial Effect of Silver Nanoparticles Produced by Fungal Process on Textile Fabrics and their Effluent Treatment. Journal of Biomedical Nanotechnology. (3): 203.
Finelib.com (2017). About Nigeria natural resources, silver (Ag) mineral deposits in Nigeria and its applications. www.finelib.com
Hambidge, A. (2001). “Reviewing efficacy of alternative water treatment techniques.†Health Estate, 55: 23–25.
Harke, H. (2007). Disinfectants. Ullmann’s Encyclopedia of Industrial Chemistry (7th Ed.), Wiley. Pp.1-17. ISBN 978-3527306732
Leong, H.N., Kurup, A., Tan, M., Hoon Kwa, A.L., Liau, K.H. and Wilcox, M.H. (2018). Management of complicated skin and soft tissue infections with a special focus on the role of newer antibiotics. Infection and Drug resistant-Dove press. 11:1959-1974.
Loukas, M., Lanteri, A., Ferrauiola, J., Tubbs, R.S., Maharaja, G., Shaja, M.M. Yadav, A. and Rao, V.C. (2010). Anatomy in ancient India: a focus on the Susruta Samhita. Journal of Anatomy. 217 (6):646-650.
Mindart.org (2020). Kishesha lead silver mine, Jos Plateau, Plateau Nigeria. Hudson Institute ofMineralogy.https://www.mindar.org//oc289955.html#:˜:text=A%20small%20but%2 0very%20high,no%20production%figurs%20are%20known.
Otto, M. (2009). Staphylococcus epidermidis- the accidental pathogen. Nature Reviews Microbiology. 7:555-567.
Politano, A.D., Campbell, K.T., Rosenberger, L.H. and Sawyer, R.G. (2013). Use of silver in the prevention and treatment of infections: Silver Review. Surgical Infection (Larchmt). 14(1): 8-20
Qureshi, S. (2020). Pseudomonas aeruginosa Infections. Medscape Article. https://emedicine.medscape.com/article/226748overview#:~:text=host%20defense%2 0mechanisms.,It%20is%20the%20most%20common%20pathogen%20isolated%20fr om%20patients%20who,and%20can%20be20life%20threatening.
Sanosil (2020). Disinfectant against coronavirus like covid-19. Sanosil Disinfectants for Life (Switzerland). https://www.sanosil.com/en/disinfectant-against-coronavirus-china- 2019-ncov/
Science Buddies Staff. (2015, April 16). Is the Gold in My Jewelry Real?. Retrieved October 3, 2016 from http://www.sciencebuddies.org/science-fair-projects/project_ideas/MicroBio_p026.shtml
Semikina, A. L. and Skulacher. V. P. (1990). “Submicromolar Ag+ increases passive Na+ permeability and inhibits the respiration supported formation of Na+ gradient in Bacillus FTU vesicles.†FEBS 269 (1):69–72
Sharma, K. (2009). Isolation, Purification and Identification of Bacteria. Manual of Microbiology Tools and Techniques (2nd Ed.). Ane Books: New Delhi. Pp 179-80
Shrestha, R., Joshi, D.R., Gopali, J., and Piya S. (2009). “Oligodynamic Action of Silver, Copper and Brass on Enteric Bacteria Isolated from Water of Kathmandu Valleyâ€. Nepal Journal of Science and Technology. 10: 189-193
Sondi, I. and Salopek, B.S. (2004).Silver nanoparticles as Antimicrobial Agent: A case study on E. coli as a model for Gram-Negative Bacteria. Journal of Colloid interface Science. 275:177-182.
Tdmu. (2014). Main Methods, Principles and Steps of isolating bacteria’s pure cultures. Retrieved December 3, 2016 from http://intranet.tdmu.edu.ua
The Daily Crisp (2019). 3 surprising health benefits of wearing silver or gold mother’s day. https://thedailycrisp.com/3-surprising-surprising-health-benefits-of-wearing-silver-or- gold-mother’s-day/
Thurman, R.B. and Gerba. C.P. (1988). “The molecular mechanisms of copper and silver ion disinfection of bacteria Q2 and viruses.â€. Critical Reviews in Environmental Science and Technology. (18): 295–315.
Totora, G.J., Funke, B.R. and Case, C.L. (2010). Microbiology: An Introduction. Benjamin Cummings. (10th Ed). Pp 300-301. ISBN 978-0-321-55007-1
Valiathan, M.S. (2007). The legacy of Susruta. Orient Longman. ISBN 9188125031505 OCLC 137222991.
Vlab. (2011). “Gram Stain Techniqueâ€. Virtual Amrita Laboratories Universalizing Education. Retrieved November 13, 2016 from http://www.vlab.amrita.edu
Wesley, F. (2013). The silver in silverware has been around for ages but there’s a reason it’s still in use today: it’s antiseptic. Adam Sava Tested. http://www.tested.com
Wilcox, M., Kite P., and Dobbins B. (1998). Antimicrobial intravascular catheters-which surfaceto coat?. Journal of Hospital Infection. (40): 322.
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