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Antibiofilm activity of commercial water solutions containing copper, silver and gold nanoparticles

 

 

 

Key words: 

antibiofilm properties, biofilm, nanoparticles, NPs, copper, silver, gold.

Summary

Microorganisms have evolved mechanisms to ensure their survival and growth in different ecosystems, which include production of biological layer  – biofilm. It is a multilayered microbial structure formed on biotic and abiotic surfaces, consisting of organic and inorganic substances. Microorganisms in biofilm may exhibit the higher resistance to commonly used antimicrobials in comparison to planktonic cells. Therefore, biofilm is a problem to keep clean lines during production process. For that reason, new antimicrobial substances effective in inhibiting the development and removal of bacterial biofilm are constantly searched. The aim of the study was to evaluate the antimicrobial properties of commercial aqueous solutions containing: silver (AgNPs), copper (CuNPs) and gold (AuNPs) nanoparticles. The bacterial strains belonging to Staphylococcus aureus, Listeria monocytogenes, Streptococcus mutans, Pseudomonas aeruginosa and Escherichia coli were used in the experiments. The experiments presented various impact of tested nanoparticles solutions on bacterial biofilm formation dependent on bacterial strains, concentration of cells as well concentration of nanoparticles. The results indicated that the AgNPs water solution was the most effective against tested pathogenic bacteria.

dr inż. Katarzyna MARCHWIŃSKA, dr inż. hab. Daniela GWIAZDOWSKA, mgr inż. Krzysztof JUŚ

Poznań University of Economics and Business  Faculty of Commodity Science  Department of Natural Science and Quality Assurance al. Niepodległości 10, 61-875 Poznań, Poland e-mail:  This email address is being protected from spambots. You need JavaScript enabled to view it. This email address is being protected from spambots. You need JavaScript enabled to view it. This email address is being protected from spambots. You need JavaScript enabled to view it.

 

 

 

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