Relationship between surface properties and antibacterial behavior of wire arc spray copper coatings

Sharifahmadian, Omid; Salimijazi, Hamidreza; Fathi, Mohammad Hossein; Mostaghimi, J.; Pershin, Larry

doi:10.1016/j.surfcoat.2013.01.060

Cited by 99 publications

(53 citation statements)

References 26 publications

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“…In contrast, the stainless steel surface did not show antibacterial properties. In the present study, similarly to Sharifahmadian et al (2013) and other previous studies (Chan et al, 2011;Wilks et al, 2005;Xu et al, 2012;Zhang et al, 2011), E. coli was rapidly killed on copper regardless of the hydrodynamic condition and nutrient load. Thus, despite the higher number of adhered cells on this surface, it may be suitable as a surface material for industry since it can reduce the contamination risk.…”

Section: Resultssupporting

confidence: 90%

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The impact of material properties, nutrient load and shear stress on biofouling in food industries

Moreira

Gomes

Simões

et al. 2015

Food and Bioproducts Processing

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Abstract:In the food industry, biofilm formation in pipes, equipment and cooling systems increases maintenance costs, decreases operational efficiencies and is a source of contamination.Shear stress, nutrient load and surface material are important variables affecting the biofilm onset in industry. In this work, the combined impacts of these variables were assessed using three different materials (glass, copper and stainless steel), two nutrient loads (high and low nutrient medium) and two hydrodynamic conditions (static and dynamic). Initial adhesion and biofilm formation were studied in microplates usingEscherichia coli as a model organism.Surface material was the factor with the strongest impact and adhesion/biofilm formation were correlated with surface hydrophobicity. However, the impact of this variable was dependent on the nutrient load and imposed shear stress. It was also found that, for the majority of the situations tested, initial attachment performance is a good predictor of biofilm formation behaviour and that the effects observed during attachment are amplified during biofilm maturation. Since shear stress is a major determinant in cell adhesion, the results of this study may find application in industrial systems operating at flow rates between 0.001 and 600 m 3 h -1 depending on tube material and diameter.

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Section: Resultssupporting

confidence: 90%

“…S1). Sharifahmadian et al (2013) studied the effect of surface properties on E. coli and Staphylococcus aureus adhesion to stainless steel and copper surfaces and they observed an average reduction of 94% in bacterial viability on copper after a 6 h assay. In contrast, the stainless steel surface did not show antibacterial properties.…”

Section: Resultsmentioning

confidence: 99%

The impact of material properties, nutrient load and shear stress on biofouling in food industries

Moreira

Gomes

Simões

et al. 2015

Food and Bioproducts Processing

View full text Add to dashboard Cite

show abstract

“…3. The isoelectric points (pI) of bacterial membranes of E. coli and S. aureus are 4-5 and 2-3, respectively [40]. A more severe alkalosis of bacterial cells is produced at the cell/material interface for Na-NT [41][42][43].…”

Section: Response Of S Aureus and E Colimentioning

confidence: 99%

Alkali-treated titanium selectively regulating biological behaviors of bacteria, cancer cells and mesenchymal stem cells

Wang

et al. 2014

Journal of Colloid and Interface Science

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“…Copper exhibits its antibacterial property in several different forms, including free Cu 2+ , complexes of Cu 2+ and CuO nano particles (Sharifahmdian et al 2015;Sun et al 2015). Several antibacterial mechanisms for copper have been proposed (Sun et al 2015): (1) elevated Cu 2+ levels inside a cell cause oxidative stress and the formation of biocidal hydrogen peroxide; (2) excess copper weakens cell membrane integrity, causing leakage of specific essential nutrients; and (3) copper binds with some proteins, leading to their dysfunction and bioactivity losses.…”

Section: Introductionmentioning

confidence: 99%

“…Several antibacterial mechanisms for copper have been proposed (Sun et al 2015): (1) elevated Cu 2+ levels inside a cell cause oxidative stress and the formation of biocidal hydrogen peroxide; (2) excess copper weakens cell membrane integrity, causing leakage of specific essential nutrients; and (3) copper binds with some proteins, leading to their dysfunction and bioactivity losses. Many antibacterial materials, such as copper-coated metals and nano-copper materials, have been created (Sharifahmdian et al 2015). Some studies (Ren et al 2011;Xiang et al 2012;Nan et al 2015) found that Cu-bearing SSs could precipitate the copperrich phase after the solution and aging treatment.…”

Section: Introductionmentioning

confidence: 99%

Laboratory investigation of the microbiologically influenced corrosion (MIC) resistance of a novel Cu-bearing 2205 duplex stainless steel in the presence of an aerobic marinePseudomonas aeruginosabiofilm

Xia

Yang

et al. 2015

Biofouling

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The microbiologically influenced corrosion (MIC) resistance of a novel Cu-bearing 2205 duplex stainless steel (2205 Cu-DSS) against an aerobic marine Pseudomonas aeruginosa biofilm was investigated. The electrochemical test results showed that Rp increased and icorr decreased sharply after long-term immersion in the inoculation medium, suggesting that 2205 Cu-DSS possessed excellent MIC resistance to the P. aeruginosa biofilm. Fluorescence microscope images showed that 2205 Cu-DSS possessed a strong antibacterial ability, and its antibacterial efficiency after one and seven days was 7.75% and 96.92%, respectively. The pit morphology comparison after 14 days between 2205 DSS and 2205 Cu-DSS demonstrated that the latter showed a considerably reduced maximum MIC pit depth compared with the former (1.44 μm vs 9.50 μm). The experimental results suggest that inhibition of the biofilm was caused by the copper ions released from the 2205 Cu-DSS, leading to its effective mitigation of MIC by P. aeruginosa.

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Relationship between surface properties and antibacterial behavior of wire arc spray copper coatings

Cited by 99 publications

References 26 publications

The impact of material properties, nutrient load and shear stress on biofouling in food industries

The impact of material properties, nutrient load and shear stress on biofouling in food industries

Alkali-treated titanium selectively regulating biological behaviors of bacteria, cancer cells and mesenchymal stem cells

Laboratory investigation of the microbiologically influenced corrosion (MIC) resistance of a novel Cu-bearing 2205 duplex stainless steel in the presence of an aerobic marinePseudomonas aeruginosabiofilm

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