Dielectric barrier structure with hollow electrodes and its recoil effect

Yu, Shuang; Chen, Qunzhi; Liu, Jiahui; Wang, Kaile; Jiang, Zhe; Sun, Zhichao; Zhang, Jue; Fang, Jing

doi:10.1063/1.4922395

Cited by 33 publications

(18 citation statements)

References 34 publications

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“…The air plasma generator is schematically illustrated in Fig. 1(A) , and was designed based on the HEDBS structure 29 . The system, mainly consisting of copper electrodes and quartz dielectric, was set at the end of a quartz tube (inlet diameter, 1.5 mm).…”

Section: Methodsmentioning

confidence: 99%

Bactericidal Effects against S. aureus and Physicochemical Properties of Plasma Activated Water stored at different temperatures

Shen

Tian

et al. 2016

Sci Rep

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269

222

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Water activated by non-thermal plasma creates an acidified solution containing reactive oxygen and nitrogen species, known as plasma-activated water (PAW). The objective of this study was to investigate the effects of different storage temperatures (25 °C, 4 °C, −20 °C, −80 °C) on bactericidal activities against S. aureus and physicochemical properties of PAW up to 30 days. Interestingly, PAW stored at −80 °C yielded the best antibacterial activity against Staphylococcus aureus, 3~4 log reduction over a 30-day period after PAW generation; meanwhile, PAW stored at 25 °C, 4 °C, and −20 °C, respectively, yielded 0.2~2 log decrease in cell viability after the same exposure and storage time. These results were verified by scanning electron microscope (SEM). The physicochemical properties of PAW stored at different temperatures were evaluated, including pH, oxidation reduction potential (ORP), and hydrogen peroxide, nitrate, nitrite anion and NO radical levels. These findings suggested that bacterial activity of PAW stored at 25 °C, 4 °C, −20 °C decreased over time, and depended on three germicidal factors, specifically ORP, H2O2, and NO3−. Moreover, PAW stored at −80 °C retained bactericidal activity, with NO2− contributing to bactericidal ability in association with H2O2. Our findings provide a basis for PAW storage and practical applications in disinfection and food preservation.

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Section: Methodsmentioning

confidence: 99%

Bactericidal Effects against S. aureus and Physicochemical Properties of Plasma Activated Water stored at different temperatures

Shen

Tian

et al. 2016

Sci Rep

Self Cite

269

222

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“…Thus, based on the current research situation, our study aimed to evaluate the in vitro effects of a novel CAPAJ for the peri-implantitis treatment. Compared with other cold plasma devices, our cold air plasma had three advantages: (i) air can be effectively ignited; (ii) CAPAJ could achieve much higher electron density and (iii) CAPAJ could efficiently promote more reactive species 34) . Typically, cold plasma has been widely employed to modify surface properties such as hydrophilicity, roughness and biocompatibility 47) .…”

Section: Discussionmentioning

confidence: 99%

“…In this study, we used an independent research and development equipment of atmospheric pressure cold plasma 34) . This is a new cold atmospheric pressure air plasma device and completely different from previous plasma jets.…”

Section: Cold Atmospheric Pressure Air Plasma Treatmentmentioning

confidence: 99%

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A novel cold atmospheric pressure air plasma jet for peri-implantitis treatment: An <i>in vitro</i> study

Guo

Zhou

et al. 2018

Dental Materials Journal

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Peri-implantitis is difficult to treat in clinical settings; this is not only because it is a site-specific infectious disease but also because it impedes osseointegration. In this study, a novel cold atmospheric pressure air plasma jet (CAPAJ) was applied to study the treatment of peri-implantitis in vitro. CAPAJ treated the samples for 2, 4 and 6 min, respectively. To evaluate the titanium surface characteristics, the surface elemental composition (X-ray photoelectron spectroscopy [XPS]), roughness and hydrophilicity were evaluated in each group. Concurrently, the sterilization and osseointegration effect of CAPAJ were also examined. Results revealed that after CAPAJ modification, roughness and hydrophilicity of titanium surfaces were significantly increased. Moreover, XPS results demonstrated that the C1s peak was reduced and N1s and O1s peaks were obviously improved. More importantly, CAPAJ showed favorable sterilization and bone formation effects. CAPAJ seemed a simpler and more efficient strategy for the peri-implantitis treatment.

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“…The air plasma generator was described in detail in previous reports (Yu et al 2015). The device was designed based on dielectric barrier structure with hollow electrodes (HEDBS) structure, which consisted of copper electrode and quartz dielectric.…”

Section: Plasma Microjet Device and Paw Generationmentioning

confidence: 99%

Preparation of the inactivated Newcastle disease vaccine by plasma activated water and evaluation of its protection efficacy

Zhou¹,

Tian

Xia³

et al. 2019

Appl Microbiol Biotechnol

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Vaccination has been regarded as the most effective way to reduce death and morbidity caused by infectious diseases in the livestock industry. In this study, plasma activated water (PAW) was introduced to prepare the inactivated Newcastle disease vaccine. Humoral immune response was tested by hemagglutination inhibition (HI) assay and enzyme-linked immunosorbent assay (ELISA). In addition, cell-mediated immune response was evaluated by lymphocyte proliferation assay and flow cytometry. The results demonstrated that the vaccine prepared by PAW at appropriate volume ratio could induce similar antibody titers in specific pathogen-free (SPF) chickens compared with the formaldehyde-inactivated vaccine. The challenge experiment further confirmed that the vaccine prepared by PAW conferred solid protection against virulent NDV. Moreover, it was found that the vaccine could promote the proliferation of lymphocytes and stimulate cell-mediated immunity of SPF chickens. Furthermore, analysis of electron spin resonance (ESR) spectroscopy and physicochemical properties of PAW suggested reactive oxygen and nitrogen species (RONS) played an essential role in the virus inactivation. Therefore, this study indicated that NDV treated by PAW in an appropriate ratio retained immunogenicity on the premise of virus inactivation. PAW as a promising strategy could be used to prepare inactivated vaccine for Newcastle disease.

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Dielectric barrier structure with hollow electrodes and its recoil effect

Cited by 33 publications

References 34 publications

Bactericidal Effects against S. aureus and Physicochemical Properties of Plasma Activated Water stored at different temperatures

Bactericidal Effects against S. aureus and Physicochemical Properties of Plasma Activated Water stored at different temperatures

A novel cold atmospheric pressure air plasma jet for peri-implantitis treatment: An <i>in vitro</i> study

Preparation of the inactivated Newcastle disease vaccine by plasma activated water and evaluation of its protection efficacy

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