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

Wang, Wei; Peng, Rui; Liu, Jiali; Wang, Zhenzhen; Guo, Tao; Liang, Qisheng; Carrier, Andrew; Wang, Li; Zhang, Xu

doi:10.1007/s10853-020-04853-7

Cited by 7 publications

(9 citation statements)

References 37 publications

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“…According to Di Rosa et al [ 47 ], biofilm formation can be modulated by environmental conditions, gelatinase activity, and the presence of the esp gene. However, it is worth stressing that the joint action of several parameters (time, temperature, nutrients, genetic factors) can be more critical compared to a single factor [ 48 , 49 ]. However, in the light of numerous literature data, gelE has been recognized as a factor unrelated to biofilm formation [ 13 , 50 , 51 , 52 ], which was confirmed by the results of the current study.…”

Section: Discussionmentioning

confidence: 99%

Biofilm Formation Capacity and Presence of Virulence Determinants among Enterococcus Species from Milk and Raw Milk Cheeses

Gajewska

Chajęcka‐Wierzchowska

Byczkowska-Rostkowska

et al. 2023

Life

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Bacterial biofilm is one of the major hazards facing the food industry. Biofilm-forming ability is one of the most important virulence properties of enterococci. The genus Enterococcus includes pathogenic, spoilage, and pro-technological bacteria. The presence of enterococci in milk and dairy products is usually associated with inadequate hygiene practices. The study examined the isolates’ capacity for biofilm formation and identification of the genetic determinants of its formation among 85 Enterococcus strains isolated from raw milk (n = 49) and soft-ripened cheeses made from unpasteurized milk (n = 36). E. faecalis and E. faecium were the dominant species. The obtained results showed that 41.4% isolates from milk and 50.0% isolates from cheeses were able to form biofilm. All of the isolates analyzed had at least one of the studied genes. As regards the isolates from raw milk, the most prevalent gene was the gelE (85.6%), followed by the asa1 (66.7%). None of the isolates from cheeses showed the presence of cylA and sprE. The most prevalent gene among the strains from this source was the epbC (94.4%), followed by the gelE (88.9%). In isolates from both sources, the presence of proteins from the Fsr group was noted the least frequently. Nevertheless, results showed that were no significant differences between the biofilm-producing Enterococcus spp. and non-biofilm-producing isolates in term of occurrences of tested virulence genes. The ability to produce a biofilm by enterococci isolated from raw milk or ready-to-eat products emphasizes the need for continuous monitoring of the mechanisms of microbial adhesion.

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Section: Discussionmentioning

confidence: 99%

Biofilm Formation Capacity and Presence of Virulence Determinants among Enterococcus Species from Milk and Raw Milk Cheeses

Gajewska

Chajęcka‐Wierzchowska

Byczkowska-Rostkowska

et al. 2023

Life

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“…Furthermore, the use of copper materials on membrane systems (i.e., reverse osmosis membranes) or in dental care procedures has also been explored by the scientific community, however, at a lower extent (5% and 7% of the manuscripts works). The remaining 7% of original studies were related with the petrochemical industry (1.7%) [ 45 ], construction sector–bricks (1.7%) [ 46 ], food contacting surfaces (1.7%) [ 47 ] and space flight materials (1.7%) [ 48 ].…”

Section: Copper Surfaces On Biofilm Prevention and Controlmentioning

confidence: 99%

“…Dygico, et al [ 122 ] tested different materials that can be found in the mushroom production environment such as SS, aluminum, rubber, polypropylene, polycarbonate, concrete, borosilicate glass and copper and found that the use of copper reduced significantly the number of culturable Listeria monocytogens adhered on the surface [ 122 ]. Copper-based nanotechnology was tested for the development of safe food-contact surfaces [ 47 , 121 ]. Ghasemian, et al [ 121 ] coated glass and SS surfaces (commonly found in food industry) with copper NPs and found a significant reduction in bacterial adhesion on coated surfaces.…”

Section: Other Applications For Copper Surfacesmentioning

confidence: 99%

“…Ghasemian, et al [ 121 ] coated glass and SS surfaces (commonly found in food industry) with copper NPs and found a significant reduction in bacterial adhesion on coated surfaces. More recently, Wang, et al [ 47 ] developed a nano CuO film on copper foil for in situ generation of reactive chlorine species (RCS) for biofilm eradication from food-contact surfaces.…”

Section: Other Applications For Copper Surfacesmentioning

confidence: 99%

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Copper Surfaces in Biofilm Control

Gomes

Simões

2020

Nanomaterials

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Biofilms are structures comprising microorganisms associated to surfaces and enclosed by an extracellular polymeric matrix produced by the colonizer cells. These structures protect microorganisms from adverse environmental conditions. Biofilms are typically associated with several negative impacts for health and industries and no effective strategy for their complete control/eradication has been identified so far. The antimicrobial properties of copper are well recognized among the scientific community, which increased their interest for the use of these materials in different applications. In this review the use of different copper materials (copper, copper alloys, nanoparticles and copper-based coatings) in medical settings, industrial equipment and plumbing systems will be discussed considering their potential to prevent and control biofilm formation. Particular attention is given to the mode of action of copper materials. The putative impact of copper materials in the health and/or products quality is reviewed taking into account their main use and the possible effects on the spread of antimicrobial resistance.

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“…Scientists have developed many strategies to fight bacterial biofilms. − Among them, some methods have been specifically used to inhibit the formation of biofilms. − These methods either use small-molecule organic compounds to inhibit the surface adhesion of bacteria at the initial stage and interfere with the quorum sensing system or use specific pathway inhibitors to inhibit the synthesis of second nucleotide messenger molecules and the maturation of biofilms. − However, the biofilm infection that has already occurred is inevitable, so researchers have also designed some strategies to combat the preformed biofilm. Common methods of destroying preformed biofilms include electrochemical methods and the use of antibacterial components with anti-biofilm activity, biomolecules capable of degrading extracellular polymers, and drug delivery systems to destroy mature biofilms. ,− …”

Section: Introductionmentioning

confidence: 99%

Combating Biofilms by a Self-Adapting Drug Loading Hydrogel

LiFei

et al. 2021

ACS Appl. Bio Mater.

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A bacterial biofilm is one of the main reasons that many diseases are difficult to cure. Herein, a teicoplanin (TPN)-loaded self-adapting chitosan-based hydrogel (CPH) system, called TPN-CPH, was prepared by encapsulating antibacterial TPN into CPH. This TPN-CPH can effectively combat preformed biofilms in vitro of Staphylococcus aureus (S. aureus). It has a good therapeutic effect on full-thickness cutaneous wounds in vivo of mice infected with biofilms. In addition, TPN-CPH can accelerate wound healing by self-adapting the wound and providing a moist environment. The operation process of TPN-CPH is simple, and no external stimulation such as light and heat is needed in the treatment process, making it more convenient for clinical application. Furthermore, this is a challenge to use self-adapting hydrogels to adapt the micro-size channels of biofilms. TPN-CPH provides a chitosan-based self-adapting hydrogel system for loading drugs to kill bacteria in biofilms, and thus it is promising for infection control.

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

Cited by 7 publications

References 37 publications

Biofilm Formation Capacity and Presence of Virulence Determinants among Enterococcus Species from Milk and Raw Milk Cheeses

Biofilm Formation Capacity and Presence of Virulence Determinants among Enterococcus Species from Milk and Raw Milk Cheeses

Copper Surfaces in Biofilm Control

Combating Biofilms by a Self-Adapting Drug Loading Hydrogel

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