Oxidation induced by dielectric barrier discharge (DBD) plasma treatment reduces IgG/IgE binding capacity and improves the functionality of glycinin

This study investigates the effects of dielectric barrier discharge (DBD) plasma treatment (1.1 kV, 43 kHz, N2 1.5 L/min, 10~60 min) on human norovirus (HuNoV) GII.4 infectivity in fresh oysters. HuNoV viability in oysters was assessed by using propidium monoazide (PMA) as a nucleic acid intercalating dye before performing a real-time reverse transcription–quantitative polymerase chain reaction (RT-qPCR). Additionally, the impact of the DBD plasma treatment on pH and Hunter colors was assessed. When DBD plasma was treated for 60 min, the HuNoV genomic titer reduction without PMA pretreatment was negligible (<1 log copy number/µL), whereas when PMA treatment was used, HuNoV titer was reduced to >1 log copy number/µL in just 30 min. D1 and D2-value of HuNoV infectivity were calculated as 36.5 and 73.0 min of the DBD plasma treatment, respectively, using the first-order kinetics model (R2 = 0.98). The pH and Hunter colors were not significantly different (p > 0.05) between the untreated and DBD-plasma-treated oysters. The results suggest that PMA/RT-qPCR could help distinguish HuNoV infectivity without negatively affecting oyster quality following >30 min treatment with DBD plasma. Moreover, the inactivation kinetics of nonthermal DBD plasma against HuNoV in fresh oysters might provide basic information for oyster processing and distribution.

Download Full-text

Recovery of Noble metal elements from effluents of the semiconductor industry as nanoparticles, by dielectric barrier discharge (DBD) plasma treatment

Hydrometallurgy ◽

10.1016/j.hydromet.2020.105483 ◽

2020 ◽

Vol 197 ◽

pp. 105483

Author(s):

Jean-François Sauvageau ◽

Marc-André Fortin

Keyword(s):

Plasma Treatment ◽

Dielectric Barrier Discharge ◽

Noble Metal ◽

Barrier Discharge ◽

Semiconductor Industry ◽

Dbd Plasma ◽

Dielectric Barrier ◽

Metal Elements

Download Full-text

Reel-to-Reel Atmospheric Pressure Dielectric Barrier Discharge (DBD) Plasma Treatment of Polypropylene Films

Applied Sciences ◽

10.3390/app7040337 ◽

2017 ◽

Vol 7 (4) ◽

pp. 337 ◽

Cited By ~ 4

Author(s):

Lukas Seidelmann ◽

James Bradley ◽

Marina Ratova ◽

Jonathan Hewitt ◽

Jamie Moffat ◽

...

Keyword(s):

Plasma Treatment ◽

Dielectric Barrier Discharge ◽

Atmospheric Pressure ◽

Barrier Discharge ◽

Dbd Plasma ◽

Dielectric Barrier ◽

Polypropylene Films

Download Full-text

The effect of dielectric barrier discharge plasma treatment on the air drag force of polyacrylonitrile, polyethylene, polypropylene and polyethylene terephthalate yarns

Textile Research Journal ◽

10.1177/0040517518783340 ◽

2018 ◽

Vol 89 (10) ◽

pp. 1938-1951 ◽

Cited By ~ 1

Author(s):

Shuai Liu ◽

Yanyu Su ◽

Mengya Wu ◽

Chunfeng Zhao ◽

Dandan Yuan ◽

...

Keyword(s):

Plasma Treatment ◽

Dielectric Barrier Discharge ◽

Polyethylene Terephthalate ◽

Drag Force ◽

Barrier Discharge ◽

Chemical Fiber ◽

Dbd Plasma ◽

Air Drag ◽

Dielectric Barrier ◽

Air Jet

In this paper, atmospheric pressure dielectric barrier discharge (DBD) plasma was used to treat four kinds of chemical fiber yarns, namely polyacrylonitrile (PAN), polyethylene (PE), polypropylene (PP) and polyethylene terephthalate (PET), for which the air drag force, moisture regain and yarn diameter were measured. Compared with untreated samples, the air drags of treated PAN, PE, PP and PET yarns increased maximally by 10.7%, 43.0%, 40.0% and 18.9%, respectively, in the present experiments. A two-way analysis of variance and correlation analysis were performed to study the effect of plasma treatment on air drag and other properties of these four chemical fiber yarns. The combination of X-ray photoelectron spectroscopy analysis and the determination of the DBD plasma component can further enhance the understanding of the difference between DBD plasma treatment processes among these four chemical fiber yarns. This study provided the experimental basis to improve the air-jet weaving efficiency of chemical fiber fabrics.

Download Full-text

Development of an industrial applicable dielectric barrier discharge (DBD) plasma treatment for improving bondability of poplar veneer

Holzforschung ◽

10.1515/hf-2015-0122 ◽

2016 ◽

Vol 70 (7) ◽

pp. 683-690 ◽

Cited By ~ 8

Author(s):

Minzhi Chen ◽

Rong Zhang ◽

Lijuan Tang ◽

Xiaoyan Zhou ◽

Yang Li ◽

...

Keyword(s):

Plasma Treatment ◽

Dielectric Barrier Discharge ◽

Industrial Application ◽

Barrier Discharge ◽

Wood Fiber ◽

Polar Component ◽

Surface Wetting ◽

Dbd Plasma ◽

Dielectric Barrier ◽

Veneer Surface

Abstract Dielectric barrier discharge (DBD) plasma treatment in a larger scale, which has the potential for industrial application, was studied for modification of poplar veneer surface for enhancing its interface adhesion. Chemical property, morphology, surface wetting, adhesion property and the stability of the activation after plasma treatment were investigated. ESR, XPS, AFM, contact angle (CA), and shear strength test were carried out to evaluate the effect of plasma treatment. The following properties increased after treatment: the surface free radical concentration, O/C ratio, surface roughness of wood fiber, veneer surface wetting, and surface free energy. Consequently, the plywood composite prepared after plasma treatment showed higher adhesion strength than that prepared from untreated veneer. The best plywoods were obtained from veneers treated at processing power of 4.5 kW of DBD. The time-dependent analysis by surface wetting indicated a modified stability in the first two days after plasma treatment, after which the polar component of the surface decreased and its dispersive component kept the level observed after plasma treatment. In summary, veneer surface modification by DBD plasma is promising for industrial application.

Download Full-text

Effects of dielectric barrier discharge cold plasma treatment on the structure and binding capacity of aroma compounds of myofibrillar proteins from dry-cured bacon

LWT ◽

10.1016/j.lwt.2019.108606 ◽

2020 ◽

Vol 117 ◽

pp. 108606 ◽

Cited By ~ 3

Author(s):

Ji Luo ◽

Mustapha Muhammad Nasiru ◽

Wenjing Yan ◽

Hong Zhuang ◽

Guanghong Zhou ◽

...

Keyword(s):

Plasma Treatment ◽

Dielectric Barrier Discharge ◽

Cold Plasma ◽

Barrier Discharge ◽

Binding Capacity ◽

Aroma Compounds ◽

Myofibrillar Proteins ◽

Dielectric Barrier

Download Full-text

Influence of Dielectric Barrier Discharge Treatment on Surface Structure of Polyoxymethylene Fiber and Interfacial Interaction with Cement

Materials ◽

10.3390/ma11101873 ◽

2018 ◽

Vol 11 (10) ◽

pp. 1873

Author(s):

Wei Zhang ◽

Xiao Xu ◽

Fayun Wei ◽

Xueshu Zou ◽

Yu Zhang

Keyword(s):

Plasma Treatment ◽

Dielectric Barrier Discharge ◽

Photoelectron Spectroscopy ◽

Treatment Duration ◽

Barrier Discharge ◽

Fiber Surface ◽

Interfacial Interaction ◽

Dbd Plasma ◽

Dielectric Barrier ◽

Pull Out

Polyoxymethylene (POM) fiber was treated with atmospheric dielectric barrier discharge (DBD) plasma to enhance the surface activity of the fiber and interfacial interaction with cement. The physical and chemical properties of samples with different DBD plasma treatment durations were tested and analyzed. Scanning electron microscopy (SEM) and atomic force microscopy (AFM) revealed that the surface roughness of the sample increased significantly as a result of the DBD plasma treatment. Fourier transform infrared spectrophotometer (FTIR) and X-ray photoelectron spectroscopy (XPS) analysis showed that a large number of –COH and –COOH groups were formed on the surface of the sample after DBD plasma treatment. The hydrophilicity of the POM fiber was greatly improved with the increase in the treatment duration. When the treatment duration was longer than 120 s, the fiber surface contact angle decreased from 90° to 43°. The DBD plasma treatment resulted in a decrease in the tensile strength of the POM fiber, but the increase in the amount of –COH and –COOH on the surface of the POM fiber and the increase in the roughness resulted in an increase in the fiber pull-out bonding strength in cement from 2.15 N to 4.68 N.

Download Full-text