An Array of Micro-hollow Surface Dielectric Barrier Discharges for Large-Area Atmospheric-Pressure Surface Treatments

Homola, Tomáš; Krumpolec, Richard; Zemánek, Miroslav; Kelar, Jakub; Synek, Petr; Hoder, Tomáš; Černák, Mirko

doi:10.1007/s11090-017-9792-z

Cited by 34 publications

(23 citation statements)

References 21 publications

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“…Multi-hollow surface dielectric barrier discharge (MSDBD) has been successfully tested and investigated for plasma treatment of materials like glass and silicon [ 25 ], polycarbonate polymer [ 26 ], and food processing [ 27 , 28 ]. This ambient air plasma source offers the capability of a remote plasma modification or decontamination of materials at enlarged distances [ 18 , 29 ].…”

Section: Introductionmentioning

confidence: 99%

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Multi-Hollow Surface Dielectric Barrier Discharge for Bacterial Biofilm Decontamination

et al. 2021

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The plasma-activated gas is capable of decontaminating surfaces of different materials in remote distances. The effect of plasma-activated water vapor on Staphylococcus epidermidis, methicillin-resistant Staphylococcus aureus, Pseudomonas aeruginosa, and Escherichia coli biofilm contamination was investigated on the polypropylene nonwoven textile surface. The robust and technically simple multi-hollow surface dielectric barrier discharge was used as a low-temperature atmospheric plasma source to activate the water-based medium. The germicidal efficiency of short and long-time exposure to plasma-activated water vapor was evaluated by standard microbiological cultivation and fluorescence analysis using a fluorescence multiwell plate reader. The test was repeated in different distances of the contaminated polypropylene nonwoven sample from the surface of the plasma source. The detection of reactive species in plasma-activated gas flow and condensed activated vapor, and thermal and electrical properties of the used plasma source, were measured. The bacterial biofilm decontamination efficiency increased with the exposure time and the plasma source power input. The log reduction of viable biofilm units decreased with the increasing distance from the dielectric surface.

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Section: Introductionmentioning

confidence: 99%

“…The electrical characteristics and temperature measurements of MSDBD in different gases and at a wide gas flow range [ 25 , 26 , 27 , 28 ] were essential to understanding its safe operation and potential application. The main advantage of the robust MSDBD electrode system is its capability to withstand high-temperature loads.…”

Section: Introductionmentioning

confidence: 99%

Multi-Hollow Surface Dielectric Barrier Discharge for Bacterial Biofilm Decontamination

et al. 2021

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“…The effect is investigated on bonded assemblies of three types of WPCs in combination with a moisture-curing permanently elastic one-component polyurethane adhesive. The adhesive is a part of one of the most common systems intended for façade applications [35,36]. The shear strength of a single lap joint under tensile stress and adhesion of bonded joint under axial tensile stress were measured with a tensile test, to verify the impact of the selected surface treatment methods.…”

Section: Introductionmentioning

confidence: 99%

Comparison of Adhesive Properties of Polyurethane Adhesive System and Wood-plastic Composites with Different Polymers after Mechanical, Chemical and Physical Surface Treatment

et al. 2019

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The cost of most primary materials is increasing, therefore, finding innovative solutions for the re-use of residual waste has become a topic discussed more intensely in recent years. WPCs certainly meet some of these demands. The presented study is focused on an experimental analysis of the effect of surface treatment on the adhesive properties of selected WPCs. Bonding of polymer-based materials is a rather complicated phenomenon and modification of the bonded area in order to improve the adhesive properties is required. Two traditional types of surface treatments and one entirely new approach have been used: mechanical with sandpaper, chemical with 10 wt % NaOH solution and physical modification of the surface by means of a MHSDBD plasma source. For comparison purposes, two high-density polyethylene based products and one polyvinyl-chloride based product with different component ratios were tested. A bonded joint was made using a moisture-curing permanently elastic one-component polyurethane pre-polymer adhesive. Standardized tensile and shear test methods were performed after surface treatment. All tested surface treatments resulted in an improvement of adhesive properties and an increase in bond strength, however, the MHSDBD plasma treatment was proven to be a more suitable surface modification for all selected WPCs.

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“…Plasma surface modification of peanuts was carried out using a special reactor for plasma treatment of small peanut samples. e rector was based on commercial coplanar-type multihollow surface dielectric barrier discharge unit for which the detail characteristics and properties were reported by [28]. A schematic draw of the experimental setup is shown in Figure 1.…”

Section: Plasma Treatment Of Peanutsmentioning

confidence: 99%

Effects of Multihollow Surface Dielectric Barrier Discharge Plasma on Chemical and Antioxidant Properties of Peanut

Gebremical

Emire

Berhanu

2019

Journal of Food Quality

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An experiment was conducted to investigate the effects of atmospheric pressure plasma generated by multihollow surface dielectric barrier discharge on chemical and antioxidant properties of peanut. Multihollow surface dielectric barrier discharge is a novel plasma device applicable in food industry applications due to the capacity of the generated plasma to treat the surface of food without changing the quality. Peanut seeds were exposed to the multihollow plasma for different plasma power (10–40 W), air flow rate (0.5–20 l/min), and time (1–15 min). The fatty acid profile, peroxide value, acid value, moisture content, total polyphenols, and antioxidant activity were evaluated during cold plasma treatment. The result revealed that, due to the variation plasma power, treatment time and air flow rate caused a decrease in unsaturated fatty acid and moisture content and increased saturated fatty acids, peroxide value, acid value, and total polyphenols of the peanut.

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An Array of Micro-hollow Surface Dielectric Barrier Discharges for Large-Area Atmospheric-Pressure Surface Treatments

Cited by 34 publications

References 21 publications

Multi-Hollow Surface Dielectric Barrier Discharge for Bacterial Biofilm Decontamination

Multi-Hollow Surface Dielectric Barrier Discharge for Bacterial Biofilm Decontamination

Comparison of Adhesive Properties of Polyurethane Adhesive System and Wood-plastic Composites with Different Polymers after Mechanical, Chemical and Physical Surface Treatment

Effects of Multihollow Surface Dielectric Barrier Discharge Plasma on Chemical and Antioxidant Properties of Peanut

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