Novel atmospheric pressure plasma device releasing atomic hydrogen: reduction of microbial-contaminants and OH radicals in the air

Nojima, Hideo; Park, Rae Eun; Kwon, J.H.; Suh, In Bum; Jeon, J. S.; Ha, Eun-Ju; On, Hyeon Ki; Kim, Hye Ryung; Choi, Kyounghui; Lee, Kwang Hee; Seong, Baik Lin; Jung, Hyunwoo; Kang, Seok-Jίn; Namba, Shinichi; Takiyama, Ken

doi:10.1088/0022-3727/40/2/026

Cited by 21 publications

(12 citation statements)

References 21 publications

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“…However, to meet recent industrial demands for low‐cost and accessible processing, it is preferable to use atmospheric‐pressure plasmas. Medical applications of atmospheric‐pressure plasmas, such as the dielectric barrier discharge (DBD) and atmospheric‐pressure glow plasma jet, have been widely investigated 14–28. A common shortcoming of plasma sterilization techniques using low‐pressure or atmospheric‐pressure plasmas is that they are capable of only surface sterilization of medical products.…”

Section: Introductionmentioning

confidence: 99%

Low‐Temperature Internal Sterilization of Medical Plastic Tubes Using a Linear Dielectric Barrier Discharge

Eto

Ono

Oginö

et al. 2008

Plasma Processes & Polymers

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The use of a linear DBD for the internal sterilization of thin plastic tubes used in medical facilities is studied. We demonstrated that flexible, long, linear DBD plasmas were produced with a diameter of 0.2–3 mm and a length longer than 1 m. The internal sterilization experiments of medical plastic tubes were carried out using a thin, linear DBD. We confirmed that 106 Geobacillus stearothermophilus spores were killed inside the tube at room temperature after 12 min DBD irradiation under atmospheric conditions. The sterilization was attributed to UV radiation of the nitrogen molecules' second positive system, the ozone generated in the air, and/or their synergetic effect.

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Section: Introductionmentioning

confidence: 99%

Low‐Temperature Internal Sterilization of Medical Plastic Tubes Using a Linear Dielectric Barrier Discharge

Eto

Ono

Oginö

et al. 2008

Plasma Processes & Polymers

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“…DNA extracted from a plasma-treated spore was found to be 180 μg whereas it was 300 μg for the untreated sample, which indicated that the CP showed a significant effect on the DNA of the fungal cells. Nojima et al (2007) developed a novel atmospheric pressure plasma device releasing hydrogen atoms and stated that atomic hydrogen is not only responsible for the fungal cell damage but also neutralizes the harmful hydroxyl radical. It was further observed that oxygen and hydroxyl radicals have the least effect on the inactivation of fungal spores due to their low life cycle.…”

Section: Inactivation Of Fungi and Fungal Sporesmentioning

confidence: 99%

Effects of cold plasma on food poisoning microbes and food contaminants including toxins and allergens: A review

Kumar

Yadav

Dalbhagat

et al. 2022

Food Processing Preservation

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Cold plasma (CP) has emerged as a powerful intervention in the non‐thermal processing of food. It a green technology with a minimum negative impact on food and the environment. Though many conventional biological, chemical and thermal techniques have not given satisfactory results, CP has shown an exceptional promise in the elimination of several kinds of food contaminants including food poisoning microbes such as bacteria, fungi, and parasites, heavy metals, toxins, and allergens. CP plays an important role in the inactivation and inhibition of food poisoning microbes. It could be a befitting alternative to traditional models because of its promising results in diverse groups of food products. This review is a collation of recent studies focused on the effect of CP on various types of microbes, toxins and allergens. The review also emphasises the effect of CP on other food contaminants including the toxicity of pesticides and heavy metals. Practical applications The CP technology being a green non‐thermal process, offers numerous potential applications in food industries. With rapid advancements in plasma science, the CP technology is being widely used for surface decontamination of food products as well as food packaging materials. Several review articles are available on cold plasma processing of food products. However, none of the literature available provides a comprehensive review of effects of cold plasma on food poisoning microbes and food contaminants. The present article reviews the updated and more advanced mechanisms and new concepts about the microbial inactivation during the CP treatment. By examining the safety of gases used in CP technology, this review will help both consumers and food processors to understand the safety of the treatment and its wide‐scale commercial application in food processing.

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“…Many studies showed efficient fungal spore eradication by dielectric barrier discharge (DBD)-type plasma (Nojima et al, 2007;Avramidis et al, 2010;Iseki et al, 2011;Panngom et al, 2014;Hashizume et al, 2015). Particularly, Nojima et al (2007) developed a plasma device releasing atomic hydrogen and showed the deactivation of fungal pathogens and the neutralization of harmful OH radicals in the air by the atomic hydrogen released from plasma. In this study, O and OH radicals generated by plasma were not major players in inactivating fungal spores in the air because of their short lifetime.…”

Section: Fungal Pathogensmentioning

confidence: 99%

Plant Disease Control by Non-Thermal Atmospheric-Pressure Plasma

et al. 2020

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Disease stresses caused by pathogenic microorganisms are increasing, probably because of global warming. Conventional technologies for plant disease control have often revealed their limitations in efficiency, environmental safety, and economic costs. There is high demand for improvements in efficiency and safety. Non-thermal atmospheric-pressure plasma has demonstrated its potential as an alternative tool for efficient and environmentally safe control of plant pathogenic microorganisms in many studies, which are overviewed in this review. Efficient inactivation of phytopathogenic bacterial and fungal cells by various plasma sources under laboratory conditions has been frequently reported. In addition, plasma-treated water shows antimicrobial activity. Plasma and plasma-treated water exhibit a broad spectrum of efficiency in the decontamination and disinfection of plants, fruits, and seeds, indicating that the outcomes of plasma treatment can be significantly influenced by the microenvironments between plasma and plant tissues, such as the surface structures and properties, antioxidant systems, and surface chemistry of plants. More intense studies are required on the efficiency of decontamination and disinfection and underlying mechanisms. Recently, the induction of plant tolerance or resistance to pathogens by plasma (so-called "plasma vaccination") is emerging as a new area of study, with active research ongoing in this field.

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Novel atmospheric pressure plasma device releasing atomic hydrogen: reduction of microbial-contaminants and OH radicals in the air

Cited by 21 publications

References 21 publications

Low‐Temperature Internal Sterilization of Medical Plastic Tubes Using a Linear Dielectric Barrier Discharge

Low‐Temperature Internal Sterilization of Medical Plastic Tubes Using a Linear Dielectric Barrier Discharge

Effects of cold plasma on food poisoning microbes and food contaminants including toxins and allergens: A review

Plant Disease Control by Non-Thermal Atmospheric-Pressure Plasma

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