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Zheng Z, Xiao Y, Cao H, Tian X, Wu R, Zhang J, Ulstrup J, Zhao F. Effect of Copper and Phosphate on the Biosynthesis of Palladium Nanoparticles by
Shewanella oneidensis
MR‐1. ChemElectroChem 2020. [DOI: 10.1002/celc.202001151] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Zhiyong Zheng
- Department of Chemistry Technical University of Denmark Kemitorvet, Building 207, Kongens Lyngby, DK 2800 Denmark
| | - Yong Xiao
- CAS Key Laboratory of Urban Pollutant Conversion Institute of Urban Environment Chinese Academy of Sciences 1799 Jimei Road Xiamen 361021 China
| | - Huili Cao
- Department of Chemistry Technical University of Denmark Kemitorvet, Building 207, Kongens Lyngby, DK 2800 Denmark
| | - Xiaochun Tian
- CAS Key Laboratory of Urban Pollutant Conversion Institute of Urban Environment Chinese Academy of Sciences 1799 Jimei Road Xiamen 361021 China
| | - Ranran Wu
- Tianjin Institute of Industrial Biotechnology Chinese Academy of Sciences 32 West 7th Avenue, Tianjin Airport Economic Area Tianjin 300308 China
| | - Jingdong Zhang
- Department of Chemistry Technical University of Denmark Kemitorvet, Building 207, Kongens Lyngby, DK 2800 Denmark
| | - Jens Ulstrup
- Department of Chemistry Technical University of Denmark Kemitorvet, Building 207, Kongens Lyngby, DK 2800 Denmark
| | - Feng Zhao
- CAS Key Laboratory of Urban Pollutant Conversion Institute of Urban Environment Chinese Academy of Sciences 1799 Jimei Road Xiamen 361021 China
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Brodowska K, Correia I, Garribba E, Marques F, Klewicka E, Łodyga-Chruscińska E, Pessoa JC, Dzeikala A, Chrusciński L. Coordination ability and biological activity of a naringenin thiosemicarbazone. J Inorg Biochem 2016; 165:36-48. [DOI: 10.1016/j.jinorgbio.2016.09.014] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Revised: 09/18/2016] [Accepted: 09/29/2016] [Indexed: 12/15/2022]
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Calvano CD, Picca RA, Bonerba E, Tantillo G, Cioffi N, Palmisano F. MALDI-TOF mass spectrometry analysis of proteins and lipids in Escherichia coli exposed to copper ions and nanoparticles. JOURNAL OF MASS SPECTROMETRY : JMS 2016; 51:828-840. [PMID: 27476478 DOI: 10.1002/jms.3823] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2016] [Revised: 07/16/2016] [Accepted: 07/25/2016] [Indexed: 06/06/2023]
Abstract
Escherichia coli (E. coli) is one of the most important foodborne pathogens to the food industry responsible for diseases as bloody diarrhea, hemorrhagic colitis and life-threatening hemolytic-uremic syndrome. For controlling and eliminating E. coli, metal nano-antimicrobials (NAMs) are frequently used as bioactive systems for applications in food treatments. Most NAMs provide controlled release of metal ions, eventually slowing down or completely inhibiting the growth of undesired microorganisms. Nonetheless, their antimicrobial action is not totally unraveled and is strongly dependent on metal properties and environmental conditions. In this work, we propose the use of matrix-assisted laser desorption ionization time-of-flight (MALDI TOF) mass spectrometry as a powerful tool for direct, time efficient, plausible identification of the cell membrane damage in bacterial strains exposed to copper-based antimicrobial agents, such as soluble salts (chosen as simplified AM material) and copper nanoparticles. E. coli ATCC 25922 strain was selected as 'training bacterium' to set up some critical experimental parameters (i.e. cell concentration, selection of the MALDI matrix, optimal solvent composition, sample preparation method) for the MS analyses. The resulting procedure was then used to attain both protein and lipid fingerprints from E. coli after exposure to different loadings of Cu salts and NPs. Interestingly, bacteria exposed to copper showed over-expression of copper binding proteins and degradation of lipids when treated with soluble salt. These findings were completed with other investigations, such as microbiological experiments. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- C D Calvano
- Dipartimento di Chimica, Università degli Studi di Bari Aldo Moro, Campus Universitario, Via E. Orabona 4, Bari, 70126, Italy
- Centro di Ricerca Interdipartimentale S.M.A.R.T., Università degli Studi di Bari Aldo Moro, Campus Universitario, Via E. Orabona 4, Bari, 70126, Italy
| | - R A Picca
- Dipartimento di Chimica, Università degli Studi di Bari Aldo Moro, Campus Universitario, Via E. Orabona 4, Bari, 70126, Italy
| | - E Bonerba
- Dipartimento di Medicina Veterinaria, Università degli Studi di Bari, Strada provinciale per Casamassima Km 3, 70100, Valenzano (BA), Italy
| | - G Tantillo
- Dipartimento di Medicina Veterinaria, Università degli Studi di Bari, Strada provinciale per Casamassima Km 3, 70100, Valenzano (BA), Italy
| | - N Cioffi
- Dipartimento di Chimica, Università degli Studi di Bari Aldo Moro, Campus Universitario, Via E. Orabona 4, Bari, 70126, Italy
- Centro di Ricerca Interdipartimentale S.M.A.R.T., Università degli Studi di Bari Aldo Moro, Campus Universitario, Via E. Orabona 4, Bari, 70126, Italy
| | - F Palmisano
- Dipartimento di Chimica, Università degli Studi di Bari Aldo Moro, Campus Universitario, Via E. Orabona 4, Bari, 70126, Italy
- Centro di Ricerca Interdipartimentale S.M.A.R.T., Università degli Studi di Bari Aldo Moro, Campus Universitario, Via E. Orabona 4, Bari, 70126, Italy
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Bactericidal activity and mechanism of action of copper-sputtered flexible surfaces against multidrug-resistant pathogens. Appl Microbiol Biotechnol 2016; 100:5945-53. [DOI: 10.1007/s00253-016-7450-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Revised: 03/06/2016] [Accepted: 03/08/2016] [Indexed: 01/25/2023]
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Vardanyan Z, Gevorkyan V, Ananyan M, Vardapetyan H, Trchounian A. Effects of various heavy metal nanoparticles on Enterococcus hirae and Escherichia coli growth and proton-coupled membrane transport. J Nanobiotechnology 2015; 13:69. [PMID: 26474562 PMCID: PMC4609144 DOI: 10.1186/s12951-015-0131-3] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Accepted: 10/06/2015] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND Due to bacterial resistance to antibiotics there is a need for new antimicrobial agents. In this respect nanoparticles can be used as they have expressed antibacterial activity simultaneously being more reactive compared to their bulk material. The action of zinc (II), titanium (IV), copper (II) and (I) oxides thin films with nanostructured surface and silver nanoscale particles on Enterococcus hirae and Escherichia coli growth and membrane activity was studied by using microbiological, potentiometric and spectrophotometric methods. RESULTS It was revealed that sapphire base plates with deposited ZnO, TiO2, CuO and Cu2O nanoparticles had no effects neither on E. hirae nor E. coli growth both on agar plates and in liquid medium. Concentrated Ag nanoparticles colloid solution markedly affected bacterial growth which was expressed by changing growth properties. E. hirae was able to grow only at <1:200 dilutions of Ag nanoparticles while E. coli grew even at 1:10 dilution. At the same time Ag nanoparticles directly affected membranes, as the FOF1-ATPase activity and H(+)-coupled transport was changed either (E. coli were less susceptible to nanoparticles compared to E. hirae). Ag nanoparticles increased H(+) and K(+) transport even in the presence of N,N'-dicyclohexylcarbodiimide (DCCD), inhibitor of FOF1. The stoichiometry of DCCD-inhibited ion fluxes was disturbed. CONCLUSIONS These results point out to distinguishing antibacterial effects of Ag nanoparticles on different bacteria; the difference between effects can be explained by peculiarities in bacterial membrane structure and properties. H(+)-K(+)-exchange disturbance by Ag nanoparticles might be involved in antibacterial effects on E. hirae. The role of FOF1 in antibacterial action of Ag nanoparticles was shown using atpD mutant lacked β subunit in F1.
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Affiliation(s)
- Zaruhi Vardanyan
- Research Institute of Biology, Faculty of Biology, Yerevan State University, 1 A. Manoukian Str., 0025, Yerevan, Armenia.
| | - Vladimir Gevorkyan
- Department of Materials Technology and Structures of Electronic Technique, Institute of Mathematics and High Technologies, Russian-Armenian (Slavonic) University, 123 H. Emin Str., 0051, Yerevan, Armenia.
| | - Michail Ananyan
- "Nano-industry" Concern, 4 Bardin Str., 1 bulk, 119334, Moscow, Russia.
| | - Hrachik Vardapetyan
- Department of Medicinal Biochemistry and Biotechnology, Institute of Mathematics and High Technologies, Russian-Armenian (Slavonic) University, 123 H. Emin Str., 0051, Yerevan, Armenia.
| | - Armen Trchounian
- Research Institute of Biology, Faculty of Biology, Yerevan State University, 1 A. Manoukian Str., 0025, Yerevan, Armenia.
- Department of Medicinal Biochemistry and Biotechnology, Institute of Mathematics and High Technologies, Russian-Armenian (Slavonic) University, 123 H. Emin Str., 0051, Yerevan, Armenia.
- Department of Microbiology, Microbes and Plants Biotechnology, Faculty of Biology, Yerevan State University, 1 A. Manoukian Str., 0025, Yerevan, Armenia.
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Vardanyan Z, Trchounian A. Cu(II), Fe(III) and Mn(II) combinations as environmental stress factors have distinguishing effects on Enterococcus hirae. J Environ Sci (China) 2015; 28:95-100. [PMID: 25662243 DOI: 10.1016/j.jes.2014.06.043] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2014] [Revised: 06/12/2014] [Accepted: 06/17/2014] [Indexed: 06/04/2023]
Abstract
Pollution by various heavy metals as environmental stress factors might affect bacteria. It was established that iron (Fe(III)), manganese (Mn(II)) and copper (Cu(II)) ion combinations caused effects on Enterococcus hirae that differed from the sum of the effects when the metals were added separately. It was shown that the Cu2+-Fe3+ combination decreased the growth and ATPase activity of membrane vesicles of wild-type E. hirae ATCC9790 and atpD mutant (with defective FoF1-ATPase) MS116. Addition of Mn2+-Fe3+ combinations within the same concentration range had no effects on growth compared to control (without heavy metals). ATPase activity was increased in the presence of Mn2+-Fe3+, while together with 0.2 mmol/L N,N'-dicyclohexylcarbodiimide (DCCD), ATPase activity was decreased compared to control (when only 0.2 mmol/L DCCD was present). These results indicate that heavy metals ion combinations probably affect the FOF1-ATPase, leading to conformational changes. Moreover the action may be direct or be mediated by environment redox potential. The effects observed when Fe3+ was added separately disappeared in both cases, which might be a result of competing processes between Fe3+ and other heavy metals. These findings are novel and improve the understanding of heavy metals ions effects on bacteria, and could be applied for regulation of stress response patterns in the environment.
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Affiliation(s)
- Zaruhi Vardanyan
- Department of Biophysics, Faculty of Biology, Yerevan State University, 0025 Yerevan, Armenia.
| | - Armen Trchounian
- Department of Microbiology, Plants and Microbes Biotechnology, Faculty of Biology, Yerevan State University, 0025 Yerevan, Armenia.
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Djoko KY, Paterson BM, Donnelly PS, McEwan AG. Antimicrobial effects of copper(II) bis(thiosemicarbazonato) complexes provide new insight into their biochemical mode of action. Metallomics 2014; 6:854-63. [PMID: 24435165 DOI: 10.1039/c3mt00348e] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The copper(II) complexes of bis-thiosemicarbazones (Cu(btsc)) such as Cu(atsm) and Cu(gtsm) are neutral, lipophilic compounds that show promise as therapeutics for the treatment of certain neurological diseases and cancers. Although the effects of these compounds have been described at the cellular level, there is almost no information about their biochemical mode of action. In this work, we showed that Cu(atsm) and Cu(gtsm) displayed antimicrobial activities against the human obligate pathogen Neisseria gonorrhoeae that were more than 100 times more potent than Cu(NO3)2 salt alone. Treatment with Cu(btsc) also produced phenotypes that were consistent with copper poisoning, but the levels of intracellular copper were undetectable by ICP MS. We observed that Cu(btsc) interacted with proteins in the cell membrane. Systematic measurements of O2 uptake further demonstrated that treatment with both Cu(atsm) and Cu(gtsm) led to dose-dependent inhibition of respiratory electron transfer processes via succinate and NADH dehydrogenases. These dehydrogenases were not inhibited by a non-btsc source of Cu(II). The results led us to conclude that the biochemical mechanism of Cu(btsc) action is likely more complex than the present, simplistic model of copper release into the cytoplasm.
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Affiliation(s)
- Karrera Y Djoko
- School of Chemistry and Molecular Biosciences and Australian Centre for Infectious Diseases Research, University of Queensland, Bdg 76 Cooper Road, St Lucia, QLD 4127, Australia.
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Copper complexation screen reveals compounds with potent antibiotic properties against methicillin-resistant Staphylococcus aureus. Antimicrob Agents Chemother 2014; 58:3727-36. [PMID: 24752262 DOI: 10.1128/aac.02316-13] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Macrophages take advantage of the antibacterial properties of copper ions in the killing of bacterial intruders. However, despite the importance of copper for innate immune functions, coordinated efforts to exploit copper ions for therapeutic interventions against bacterial infections are not yet in place. Here we report a novel high-throughput screening platform specifically developed for the discovery and characterization of compounds with copper-dependent antibacterial properties toward methicillin-resistant Staphylococcus aureus (MRSA). We detail how one of the identified compounds, glyoxal-bis(N4-methylthiosemicarbazone) (GTSM), exerts its potent strictly copper-dependent antibacterial properties on MRSA. Our data indicate that the activity of the GTSM-copper complex goes beyond the general antibacterial effects of accumulated copper ions and suggest that, in contrast to prevailing opinion, copper complexes can indeed exhibit species- and target-specific activities. Based on experimental evidence, we propose that copper ions impose structural changes upon binding to the otherwise inactive GTSM ligand and transfer antibacterial properties to the chelate. In turn, GTSM determines target specificity and utilizes a redox-sensitive release mechanism through which copper ions are deployed at or in close proximity to a putative target. According to our proof-of-concept screen, copper activation is not a rare event and even extends to already established drugs. Thus, copper-activated compounds could define a novel class of anti-MRSA agents that amplify copper-dependent innate immune functions of the host. To this end, we provide a blueprint for a high-throughput drug screening campaign which considers the antibacterial properties of copper ions at the host-pathogen interface.
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Torgomyan H, Ohanyan V, Blbulyan S, Trchounian A. Changes in ion transport through membranes, ATPase activity and antibiotics effects in Enterococcus hirae after low intensity electromagnetic irradiation of 51.8 and 53.0 GHz frequencies. Biophysics (Nagoya-shi) 2013. [DOI: 10.1134/s0006350913040167] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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The Effects of Manganese (II) But Not Nickel (II) Ions on Enterococcus hirae Cell Growth, Redox Potential Decrease, and Proton-Coupled Membrane Transport. Cell Biochem Biophys 2013; 67:1301-6. [DOI: 10.1007/s12013-013-9662-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Ng CK, Cai Tan TK, Song H, Cao B. Reductive formation of palladium nanoparticles by Shewanella oneidensis: role of outer membrane cytochromes and hydrogenases. RSC Adv 2013. [DOI: 10.1039/c3ra44143a] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Rotaru AE, Jiang W, Finster K, Skrydstrup T, Meyer RL. Non-enzymatic palladium recovery on microbial and synthetic surfaces. Biotechnol Bioeng 2012; 109:1889-97. [DOI: 10.1002/bit.24500] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2011] [Revised: 03/06/2012] [Accepted: 03/08/2012] [Indexed: 11/09/2022]
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Torgomyan H, Ohanyan V, Blbulyan S, Kalantaryan V, Trchounian A. Electromagnetic irradiation of Enterococcus hirae at low-intensity 51.8- and 53.0-GHz frequencies: changes in bacterial cell membrane properties and enhanced antibiotics effects. FEMS Microbiol Lett 2012; 329:131-7. [DOI: 10.1111/j.1574-6968.2012.02512.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2011] [Revised: 01/15/2012] [Accepted: 01/24/2012] [Indexed: 11/26/2022] Open
Affiliation(s)
- Heghine Torgomyan
- Department of Biophysics; Faculty of Radiophysics; Yerevan State University; Yerevan; Armenia
| | - Vahe Ohanyan
- Department of Biophysics; Faculty of Radiophysics; Yerevan State University; Yerevan; Armenia
| | - Syuzanna Blbulyan
- Department of Medical Biology and Bioengineering; Russian-Armenian (Slavonic) State University; Yerevan; Armenia
| | - Vitaly Kalantaryan
- Department of Radiophysics of High Frequencies and Telecommunication; Faculty of Radiophysics; Yerevan State University; Yerevan; Armenia
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Vardanyan Z, Trchounian A. Fe(III) and Fe(II) ions different effects on Enterococcus hirae cell growth and membrane-associated ATPase activity. Biochem Biophys Res Commun 2011; 417:541-5. [PMID: 22166211 DOI: 10.1016/j.bbrc.2011.11.159] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2011] [Accepted: 11/30/2011] [Indexed: 11/16/2022]
Abstract
Enterococcus hirae is able to grow under anaerobic conditions during glucose fermentation (pH 8.0) which is accompanied by acidification of the medium and drop in its oxidation-reduction potential (E(h)) from positive values to negative ones (down to ∼-200 mV). In this study, iron (III) ions (Fe(3+)) have been shown to affect bacterial growth in a concentration-dependent manner (within the range of 0.05-2 mM) by decreasing lag phase duration and increasing specific growth rate. While iron(II) ions (Fe(2+)) had opposite effects which were reflected by suppressing bacterial growth. These ions also affected the changes in E(h) values during bacterial growth. It was revealed that ATPase activity with and without N,N'-dicyclohexylcarbodiimide (DCCD), an inhibitor of the F(0)F(1)-ATPase, increased in the presence of even low Fe(3+) concentration (0.05 mM) but decreased in the presence of Fe(2+). It was established that Fe(3+) and Fe(2+) both significantly inhibited the proton-potassium exchange of bacteria, but stronger effects were in the case of Fe(2+) with DCCD. Such results were observed with both wild-type ATCC9790 and atpD mutant (with defective F(0)F(1)) MS116 strains but they were different with Fe(3+) and Fe(2+). It is suggested that the effects of Fe(3+) might be due to interaction of these ions with F(0)F(1) or there might be a Fe(3+)-dependent ATPase different from F(0)F(1) in these bacteria that is active even in the presence of DCCD. Fe(2+) inhibits E. hirae cell growth probably by strong effect on E(h) leading to changes in F(0)F(1) and decreasing its activity.
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Affiliation(s)
- Zaruhi Vardanyan
- Department of Biophysics of the Biology Faculty, Yerevan State University, Yerevan, Armenia
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Mechanism of copper surface toxicity in vancomycin-resistant enterococci following wet or dry surface contact. Appl Environ Microbiol 2011; 77:6049-59. [PMID: 21742916 DOI: 10.1128/aem.00597-11] [Citation(s) in RCA: 113] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Contaminated touch surfaces have been implicated in the spread of hospital-acquired infections, and the use of biocidal surfaces could help to reduce this cross-contamination. In a previous study we reported the death of aqueous inocula of pathogenic Enterococcus faecalis or Enterococcus faecium isolates, simulating fomite surface contamination, in 1 h on copper alloys, compared to survival for months on stainless steel. In our current study we observed an even faster kill of over a 6-log reduction of viable enterococci in less than 10 min on copper alloys with a "dry" inoculum equivalent to touch contamination. We investigated the effect of copper(I) and copper(II) chelation and the quenching of reactive oxygen species on cell viability assessed by culture and their effects on genomic DNA, membrane potential, and respiration in situ on metal surfaces. We propose that copper surface toxicity for enterococci involves the direct or indirect action of released copper ionic species and the generation of superoxide, resulting in arrested respiration and DNA breakdown as the first stages of cell death. The generation of hydroxyl radicals by the Fenton reaction does not appear to be the dominant instrument of DNA damage. The bacterial membrane potential is unaffected in the early stages of wet and dry surface contact, suggesting that the membrane is not compromised until after cell death. These results also highlight the importance of correct surface cleaning protocols to perpetuate copper ion release and prevent the chelation of ions by contaminants, which could reduce the efficacy of the surface.
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