Biofilm eradication by in situ generation of reactive chlorine species on nano-CuO surfaces

Autor:	Rui Peng, Wang Wei, Zhenzhen Wang, Li Wang, Tao Guo, Andrew J. Carrier, Jiali Liu, Qisheng Liang, Xu Zhang
Rok vydání:	2020
Předmět:	inorganic chemicals In situ Materials science biology Mechanical Engineering Biofilm chemistry.chemical_element macromolecular substances Bacterial growth biology.organism_classification medicine.disease_cause Biofouling chemistry Chemical engineering Mechanics of Materials Nano Chlorine medicine General Materials Science Escherichia coli Bacteria
Zdroj:	Journal of Materials Science. 55:11609-11621
ISSN:	1573-4803 0022-2461
Popis:	Herein, we constructed a nano-CuO film on copper foil for the in situ generation of reactive chlorine species (RCS) for the contact killing of bacteria and biofilm suppression and dispersal. Both Staphylococcus aureus and Escherichia coli were susceptible to this treatment. Additionally, we demonstrate the solid nano-CuO interface-based heterogeneous Fenton chemistry rather than leached copper-ion-based homogeneous Fenton chemistry is responsible for RCS generation and bacterial cytotoxicity. This process is modulated by the H2O2 and Cl− concentrations in bacterial growth environment. The potential applications for in situ generation of RCS might be the incorporation of CuO nanoparticles into functional food contact surfaces as well as coating materials for marine biofouling control.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7b818d7b9c58b22c5d4c2f4379e38a3a https://doi.org/10.1007/s10853-020-04853-7 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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