Effects of DBD plasma operating parameters on the polymer surface modification

Liu, Chaozong; Cui, Nai-Yi; Brown, N. M. D.; Meenan, Brian J.

doi:10.1016/j.surfcoat.2004.01.024

Cited by 154 publications

(90 citation statements)

References 21 publications

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“…Similar increases have also been observed for sodium caseinate film (Pankaj et al, 2014b). Improvement in the hydrophilicity of the films can be associated with surface oxygenation after plasma treatment (Liu et al, 2004;Pankaj et al, 2014c). The increase in the ratio of oxygen to carbon atoms indicated that new oxygen-containing groups may form on the film surface (Pankaj et al, 2014b), leading to a change in the hydrophobic character to become increasingly hydrophilic (Sparavigna, 2008).…”

Section: Physical and Mechanical Properties Of Protein Based Filmsmentioning

confidence: 62%

Cold atmospheric plasma manipulation of proteins in food systems

Tolouie

Mohammadifar

Ghomi

et al. 2017

Critical Reviews in Food Science and Nutrition

143

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Section: Physical and Mechanical Properties Of Protein Based Filmsmentioning

confidence: 62%

Cold atmospheric plasma manipulation of proteins in food systems

Tolouie

Mohammadifar

Ghomi

et al. 2017

Critical Reviews in Food Science and Nutrition

143

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“…Reactive oxygen and nitrogen species have been implicated in the attack and destabilization of membranes in bacteria [35,52]. A membrane attack event can be viewed as a short term germicidal effect, because the induced damage would be a highly dynamic and amplifying sequence of events.…”

Section: Discussionmentioning

confidence: 99%

“…Their inclusion may limit the germicidal capabilities due to macromolecular shielding of targeted microorganisms [33]. Likewise, the pH [34], and temperature [16], are susceptible to alteration after nonthermal plasma discharge, and emission due to the activity of reactive secondary messenger molecules and ions [35]. In Broomfield, CO) was used to measure spectral information from the nonthermal plasma discharge arc ( Figure 3).…”

Section: Plasma Spectra Characteristicsmentioning

confidence: 99%

Characterization, Properties and Applications of Nonthermal Plasma: A Novel Pulsed-Based Option

Ferrell¹,

Aleks²,

Galov³

et al. 2013

J Biotechnol Biomaterial

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The glow discharge from a novel spark-based nonthermal plasma generator is described and characterized using spectrophotometry, radiometry and gas detectors. Spectral information identified ultraviolet radiation within the plasma discharge. High levels of reactive oxygen and nitrogenous species were also detected within the analyzed plasma. The plasma discharge is found to have a significant germicidal effect on Gram-positive bacteria, independent of temperature increase. The ultraviolet radiation and ionized gaseous species are found to contribute to this observed effect, synergistically. Plasma filtration reduced germicidal survivability significantly. The liquid environment in which bacterial cells were exposed to the nonthermal plasma also was important, when determining the efficacy of nonthermal plasma, as a germicidal agent. Staphylococcus aureus cultures exposed to nonthermal plasma for two minutes within low nutrient sources, such as water or phosphate-buffered saline, had very low survival. Cultures exposed to the same plasma interval in nutrient rich liquids tolerated the plasma exposure better, and survived at higher numbers. This plasma discharge is highly bactericidal, due to the high concentrations of known antimicrobial agents, but its effectiveness is subject to a synergistic effect, that depends upon the surrounding environment.

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“…The dielectric layer plays an important role in limiting the discharge current to avoid the arc transition and randomly distribute streamers on the electrode surface, resulting in a homogeneous treatment [17]. The DBD plasma is well known for the modification of both the surface and bulk properties of polymers [18]. The effects of plasma on polymeric materials have been reviewed by Morent et al [19] and Pankaj et al [20].…”

Section: Introductionmentioning

confidence: 99%

Surface, Thermal and Antimicrobial Release Properties of Plasma-Treated Zein Films

Pankaj¹,

Bueno-Ferrer²,

Misra³

et al. 2014

j renew mater

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ABSTRACT:The effects of dielectric barrier discharge plasma treatment on zein film containing thymol as an active ingredient were evaluated. The plasma discharge was optically characterized to identify the reactive species. A significant increase in the film roughness (p < 0.05) was observed due to the etching effect of DBD plasma, which was correlated with the increase in the diffusion rate of thymol in the food simulant. The diffusion of thymol from the zein film was measured in aqueous solution. The kinetics of thymol release followed the Fick's law of diffusion as shown by the high correlation coefficients between experimental and theoretical data. No significant change (p > 0.05) was observed for the thermal properties of the antimicrobial films after DBD plasma treatment.

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Effects of DBD plasma operating parameters on the polymer surface modification

Cited by 154 publications

References 21 publications

Cold atmospheric plasma manipulation of proteins in food systems

Cold atmospheric plasma manipulation of proteins in food systems

Characterization, Properties and Applications of Nonthermal Plasma: A Novel Pulsed-Based Option

Surface, Thermal and Antimicrobial Release Properties of Plasma-Treated Zein Films

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