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Chen M, Moher D, Rogers J, Yatom S, Thimsen E, Parker KM. Effects of Halides on Organic Compound Degradation during Plasma Treatment of Brines. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:5139-5152. [PMID: 38446791 DOI: 10.1021/acs.est.3c07162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/08/2024]
Abstract
Plasma has been proposed as an alternative strategy to treat organic contaminants in brines. Chemical degradation in these systems is expected to be partially driven by halogen oxidants, which have been detected in halide-containing solutions exposed to plasma. In this study, we characterized specific mechanisms involving the formation and reactions of halogen oxidants during plasma treatment. We first demonstrated that addition of halides accelerated the degradation of a probe compound known to react quickly with halogen oxidants (i.e., para-hydroxybenzoate) but did not affect the degradation of a less reactive probe compound (i.e., benzoate). This effect was attributed to the degradation of para-hydroxybenzoate by hypohalous acids, which were produced via a mechanism involving halogen radicals as intermediates. We applied this mechanistic insight to investigate the impact of constituents in brines on reactions driven by halogen oxidants during plasma treatment. Bromide, which is expected to occur alongside chloride in brines, was required to enable halogen oxidant formation, consistent with the generation of halogen radicals from the oxidation of halides by hydroxyl radical. Other constituents typically present in brines (i.e., carbonates, organic matter) slowed the degradation of organic compounds, consistent with their ability to scavenge species involved during plasma treatment.
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Affiliation(s)
- Moshan Chen
- Department of Energy, Environmental & Chemical Engineering, Washington University in St. Louis, St. Louis, Missouri 63130, United States
| | - Dillon Moher
- Department of Energy, Environmental & Chemical Engineering, Washington University in St. Louis, St. Louis, Missouri 63130, United States
| | - Jacqueline Rogers
- Department of Energy, Environmental & Chemical Engineering, Washington University in St. Louis, St. Louis, Missouri 63130, United States
| | - Shurik Yatom
- Princeton Plasma Physics Laboratory, Princeton University, Princeton, New Jersey 08540 , United States
| | - Elijah Thimsen
- Department of Energy, Environmental & Chemical Engineering, Washington University in St. Louis, St. Louis, Missouri 63130, United States
| | - Kimberly M Parker
- Department of Energy, Environmental & Chemical Engineering, Washington University in St. Louis, St. Louis, Missouri 63130, United States
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Nateghi L, Hosseini E, Mirmohammadmakki F. Investigating the effect of cold atmospheric plasma treatment on the microbial load of raw potato slices. IRANIAN JOURNAL OF MICROBIOLOGY 2024; 16:62-67. [PMID: 38682057 PMCID: PMC11055444 DOI: 10.18502/ijm.v16i1.14872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 05/01/2024]
Abstract
Background and Objectives Potatoes (Solanum tuberosum), as starchy plants, have been highly esteemed for their rich supply of nutrients. Numerous studies have investigated the potential health benefits of potatoes and explored potential solutions. Among these considerations, the discussion regarding microbial contaminants has remained an important topic. Materials and Methods The present study used cold atmospheric plasma (CAP) to evaluate the microbial quality (including mesophilic and psychrotrophic bacteria and mold and yeasts) of raw potato slices during a 14-day storage period. To achieve this goal, the duration of CAP exposure was set at 5, 10, and 15 min, utilizing an electric voltage of 60 kV and a specific frequency of 20 kHz. Results The findings revealed the effectiveness of CAP pre-treatment in inhibiting microbial growth over the 14 days when compared to the control sample (untreated sample), with a statistically significant difference (P < 0.05). Moreover, with an extension of the CAP exposure duration to 15 min, there was a significant reduction in the logarithmic count of mesophilic, psychrotrophic microorganisms, molds, and yeasts (4.95, 2.85, and 2.22CFU/g, respectively) in comparison to the control groups (7.5, 5.62, and 5.5CFU/g) on days 0, 7, and 14 of the storage periods (P < 0.05). Conclusion The results of this study highlight the potential of CAP pre-treatment on reducing the microbial load in raw potato slices prior to frying, which could potentially influence the overall quality of potato-based products.
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Affiliation(s)
- Leila Nateghi
- Department of Food Science and Technology, Varamin-Pishva Branch, Islamic Azad University, Varamin, Iran
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Upadrasta A, Daniels S, Humphreys H. Cold atmospheric air plasma-activated mist as a potential decontaminant against SARS-CoV-2 surrogate in saliva. J Hosp Infect 2024; 143:215-217. [PMID: 37734677 DOI: 10.1016/j.jhin.2023.09.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Accepted: 09/11/2023] [Indexed: 09/23/2023]
Affiliation(s)
- A Upadrasta
- Department of Clinical Microbiology, Royal College of Surgeons in Ireland University of Medicine and Health Sciences, Dublin, Ireland
| | - S Daniels
- School of Electronic Engineering, Dublin City University, Glasnevin Campus, Dublin, Ireland
| | - H Humphreys
- Department of Clinical Microbiology, Royal College of Surgeons in Ireland University of Medicine and Health Sciences, Dublin, Ireland.
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Lee YR, Kim DY, Kim JY, Lee DH, Bae GT, Jang H, Park JY, Jung S, Jung EY, Park CS, Lee HK, Tae HS. Effects of Dielectric Barrier on Water Activation and Phosphorus Compound Digestion in Gas-Liquid Discharges. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 14:40. [PMID: 38202495 PMCID: PMC10780582 DOI: 10.3390/nano14010040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 12/14/2023] [Accepted: 12/20/2023] [Indexed: 01/12/2024]
Abstract
To generate a stable and effective air-liquid discharge in an open atmosphere, we investigated the effect of the dielectric barrier on the discharge between the pin electrode and liquid surface in an atmospheric-pressure plasma reactor. The atmospheric-pressure plasma reactor used in this study was based on a pin-plate discharge structure, and a metal wire was used as a pin-type power electrode. A plate-type ground electrode was placed above and below the vessel to compare the pin-liquid discharge and pin-liquid barrier discharge (PLBD). The results indicated that the PLBD configuration utilizing the bottom of the vessel as a dielectric barrier outperformed the pin-liquid setup in terms of the discharge stability and that the concentration of reactive species was different in the two plasma modes. PLBD can be used as a digestion technique for determining the phosphorus concentration in natural water sources. The method for decomposing phosphorus compounds by employing PLBD exhibited excellent decomposition performance, similar to the performance of thermochemical digestion-an established conventional method for phosphorus detection in water. The PLBD structure can replace the conventional chemical-agent-based digestion method for determining the total dissolved phosphorus concentration using the ascorbic acid reduction method.
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Affiliation(s)
- Ye Rin Lee
- School of Electronic and Electrical Engineering, College of IT Engineering, Kyungpook National University, Daegu 41566, Republic of Korea; (Y.R.L.); (J.Y.K.); (D.H.L.); (G.T.B.); (H.J.); (E.Y.J.)
| | - Do Yeob Kim
- Superintelligence Creative Research Laboratory, Electronics and Telecommunications Research Institute (ETRI), Daejeon 34129, Republic of Korea;
| | - Jae Young Kim
- School of Electronic and Electrical Engineering, College of IT Engineering, Kyungpook National University, Daegu 41566, Republic of Korea; (Y.R.L.); (J.Y.K.); (D.H.L.); (G.T.B.); (H.J.); (E.Y.J.)
| | - Da Hye Lee
- School of Electronic and Electrical Engineering, College of IT Engineering, Kyungpook National University, Daegu 41566, Republic of Korea; (Y.R.L.); (J.Y.K.); (D.H.L.); (G.T.B.); (H.J.); (E.Y.J.)
| | - Gyu Tae Bae
- School of Electronic and Electrical Engineering, College of IT Engineering, Kyungpook National University, Daegu 41566, Republic of Korea; (Y.R.L.); (J.Y.K.); (D.H.L.); (G.T.B.); (H.J.); (E.Y.J.)
| | - Hyojun Jang
- School of Electronic and Electrical Engineering, College of IT Engineering, Kyungpook National University, Daegu 41566, Republic of Korea; (Y.R.L.); (J.Y.K.); (D.H.L.); (G.T.B.); (H.J.); (E.Y.J.)
| | - Joo Young Park
- Department of Nano-Bio Convergence, Korea Institute of Materials Science, Changwon 51508, Republic of Korea; (J.Y.P.); (S.J.)
| | - Sunghoon Jung
- Department of Nano-Bio Convergence, Korea Institute of Materials Science, Changwon 51508, Republic of Korea; (J.Y.P.); (S.J.)
| | - Eun Young Jung
- School of Electronic and Electrical Engineering, College of IT Engineering, Kyungpook National University, Daegu 41566, Republic of Korea; (Y.R.L.); (J.Y.K.); (D.H.L.); (G.T.B.); (H.J.); (E.Y.J.)
- The Institute of Electronic Technology, College of IT Engineering, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Choon-Sang Park
- Department of Electrical Engineering, Milligan University, Johnson City, TN 37682, USA;
| | - Hyung-Kun Lee
- Superintelligence Creative Research Laboratory, Electronics and Telecommunications Research Institute (ETRI), Daejeon 34129, Republic of Korea;
| | - Heung-Sik Tae
- School of Electronic and Electrical Engineering, College of IT Engineering, Kyungpook National University, Daegu 41566, Republic of Korea; (Y.R.L.); (J.Y.K.); (D.H.L.); (G.T.B.); (H.J.); (E.Y.J.)
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Ma Y, Sun T, Ren K, Min T, Xie X, Wang H, Xu G, Dang C, Zhang H. Applications of cold atmospheric plasma in immune-mediated inflammatory diseases via redox homeostasis: evidence and prospects. Heliyon 2023; 9:e22568. [PMID: 38107323 PMCID: PMC10724573 DOI: 10.1016/j.heliyon.2023.e22568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Revised: 09/28/2023] [Accepted: 11/15/2023] [Indexed: 12/19/2023] Open
Abstract
As a representative technology in plasma medicine, cold atmospheric plasma (CAP) has beneficial outcomes in surface disinfection, wound repair, tissue regeneration, solid tumor therapy. Impact on immune response and inflammatory conditions was also observed in the process of CAP treatment. Relevant literatures were collected to assess efficacy and summarize possible mechanisms of the innovation. CAP mediates alteration in local immune microenvironment mainly through two ways. One is to down-regulate the expression level of several cytokines, impeding further conduction of immune or inflammatory signals. Intervening the functional phenotype of cells through different degree of oxidative stress is the other approach to manage the immune-mediated inflammatory disorders. A series of preclinical and clinical studies confirmed the therapeutic effect and side effects free of CAP. Moreover, several suggestions proposed in this manuscript might help to find directions for future investigation.
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Affiliation(s)
- Yuyi Ma
- Department of Surgical Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, China
| | - Tuanhe Sun
- Department of Surgical Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, China
| | - Kaijie Ren
- Department of Surgical Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, China
| | - Tianhao Min
- Department of Surgical Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, China
| | - Xin Xie
- Department of Nuclear Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, China
| | - Haonan Wang
- Department of Surgical Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, China
| | - Guimin Xu
- State Key Laboratory of Electrical Insulation and Power Equipment, School of Electrical Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, China
| | - Chengxue Dang
- Department of Surgical Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, China
| | - Hao Zhang
- Department of Surgical Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, China
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Tomei G, Saleem M, Ceriani E, Pinton A, Marotta E, Paradisi C. Cold Plasma for Green Advanced Reduction/Oxidation Processes (AROPs) of Organic Pollutants in Water. Chemistry 2023; 29:e202302090. [PMID: 37621157 DOI: 10.1002/chem.202302090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 08/21/2023] [Accepted: 08/21/2023] [Indexed: 08/26/2023]
Abstract
Cold plasma is gaining increasing attention as a novel tool to activate energy demanding chemical processes, including advanced reduction/oxidation processes (AROPs) of organic pollutants in water. The very complex milieu generated by discharges at the water/plasma interface comprises photons, strong oxidants and strong reductants which can be exploited for achieving the degradation of most any kind of pollutants. Despite the complexity of these systems, the powerful arsenal of mechanistic tools and chemical probes of physical organic chemists can be usefully applied to understand and develop plasma chemistry. Specifically, the added value of air plasma generated by in situ discharge with respect to ozonation (ex situ discharge) is demonstrated using phenol and various phenol derivatives and mechanistic evidence for the prevailing role of hydroxyl radicals in the initial attack is presented. On the reduction front, the impressive performance of cold plasma in inducing the degradation of recalcitrant perfluoroalkyl substances, which do not react with OH radicals but are attacked by electrons, is reported and discussed. The widely different reactivities of perfluorooctanoic acid (PFOA) and of perfluorobutanoic acid (PFBA) underline the crucial role played in these processes by the interface between plasma and solution and the surfactant properties of the treated pollutants.
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Affiliation(s)
- Giulia Tomei
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, 35131, Padova, Italy
| | - Mubbshir Saleem
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, 35131, Padova, Italy
| | - Elisa Ceriani
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, 35131, Padova, Italy
| | - Anna Pinton
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, 35131, Padova, Italy
| | - Ester Marotta
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, 35131, Padova, Italy
| | - Cristina Paradisi
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, 35131, Padova, Italy
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Dirks T, Yayci A, Klopsch S, Krewing M, Zhang W, Hollmann F, Bandow JE. Immobilization protects enzymes from plasma-mediated inactivation. J R Soc Interface 2023; 20:20230299. [PMID: 37876274 PMCID: PMC10598437 DOI: 10.1098/rsif.2023.0299] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 09/25/2023] [Indexed: 10/26/2023] Open
Abstract
Non-thermal plasmas are used in various applications to inactivate biological agents or biomolecules. A complex cocktail of reactive species, (vacuum) UV radiation and in some cases exposure to an electric field together cause the detrimental effects. In contrast to this disruptive property of technical plasmas, we have shown previously that it is possible to use non-thermal plasma-generated species such as H2O2 as cosubstrates in biocatalytic reactions. One of the main limitations in plasma-driven biocatalysis is the relatively short enzyme lifetime under plasma-operating conditions. This challenge could be overcome by immobilizing the enzymes on inert carrier materials. Here, we tested whether immobilization is suited to protect proteins from inactivation by plasma. To this end, using a dielectric barrier discharge device (PlasmaDerm), plasma stability was tested for five enzymes immobilized on ten different carrier materials. A comparative analysis of the treatment times needed to reduce enzyme activity of immobilized and free enzyme by 30% showed a maximum increase by a factor of 44. Covalent immobilization on a partly hydrophobic carrier surface proved most effective. We conclude from the study, that immobilization universally protects enzymes under plasma-operating conditions, paving the way for new emerging applications.
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Affiliation(s)
- Tim Dirks
- Applied Microbiology, Faculty of Biology and Biotechnology, Ruhr University Bochum, Bochum, Germany
| | - Abdulkadir Yayci
- Applied Microbiology, Faculty of Biology and Biotechnology, Ruhr University Bochum, Bochum, Germany
| | - Sabrina Klopsch
- Applied Microbiology, Faculty of Biology and Biotechnology, Ruhr University Bochum, Bochum, Germany
| | - Marco Krewing
- Applied Microbiology, Faculty of Biology and Biotechnology, Ruhr University Bochum, Bochum, Germany
| | - Wuyuan Zhang
- National Innovation Center for Synthetic Biotechnology, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, 32 West 7th Avenue, Tianjin Airport Economic Area, Tianjin 300308, People's Republic of China
| | - Frank Hollmann
- Department of Biotechnology, Delft University of Technology, Delft, The Netherlands
| | - Julia E. Bandow
- Applied Microbiology, Faculty of Biology and Biotechnology, Ruhr University Bochum, Bochum, Germany
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8
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Bai F, Ran Y, Zhai S, Xia Y. Cold Atmospheric Plasma: A Promising and Safe Therapeutic Strategy for Atopic Dermatitis. Int Arch Allergy Immunol 2023; 184:1184-1197. [PMID: 37703833 PMCID: PMC10733932 DOI: 10.1159/000531967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 07/04/2023] [Indexed: 09/15/2023] Open
Abstract
Atopic dermatitis (AD) is a chronic inflammatory skin disease. Microbial infection, immune system dysfunction, and skin barrier defunctionalization have been regarded as the central events in AD pathogenesis. Cold atmospheric plasma (CAP) is an unbound system composed of many free electrons, ions, and neutral particles, with macroscopic time and spatial scales. Based on dielectric barrier discharge, glow discharge, corona discharge, or arch discharge, CAP is generated at normal atmospheric pressure. Its special physical properties maintain its temperature at 20°C-40°C, combining the advantages of high safety and strong ionic activity. CAP has been tentatively used in inflammatory or pruritic skin disorders such as psoriasis, pruritus, and ichthyosis. Increasing data suggest that CAP can attack the microbial structure due to its unique effects, such as heat, ultraviolet radiation, and free radicals, resulting in its inactivation. Meanwhile, CAP regulates reactive oxygen species and reactive nitrogen species in and out of the cells, thereby improving cell immunocompetence. In addition, CAP has a beneficial effect on the skin barrier function via changing the skin lipid contents and increasing the skin permeability to drugs. This review summarizes the potential effects of CAP on the major pathogenic causes of AD and discusses the safety of CAP application in dermatology in order to expand the clinical application value of CAP to AD.
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Affiliation(s)
- Fan Bai
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi An, China
| | - Yutong Ran
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi An, China
| | - Siyue Zhai
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi An, China
| | - Yumin Xia
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi An, China
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Upadrasta A, Daniels S, Thompson TP, Gilmore B, Humphreys H. In situ generation of cold atmospheric plasma-activated mist and its biocidal activity against surrogate viruses for COVID-19. J Appl Microbiol 2023; 134:lxad181. [PMID: 37580171 DOI: 10.1093/jambio/lxad181] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 07/17/2023] [Accepted: 08/12/2023] [Indexed: 08/16/2023]
Abstract
AIMS To provide an alternative to ultra violet light and vapourized hydrogen peroxide to enhance decontamination of surfaces as part of the response to the COVID-19 pandemic. METHODS AND RESULTS We developed an indirect method for in situ delivery of cold plasma and evaluated the anti-viral activity of plasma-activated mist (PAM) using bacteriophages phi6, MS2, and phiX174, surrogates for SARS-CoV-2. Exposure to ambient air atmospheric pressure derived PAM caused a 1.71 log10 PFU ml-1 reduction in phi6 titer within 5 min and a 7.4 log10 PFU ml-1 reduction after 10 min when the the PAM source was at 5 and 10 cm. With MS2 and phiX174, a 3.1 and 1.26 log10 PFU ml-1 reduction was achieved, respectively, after 30 min. The rate of killing was increased with longer exposure times but decreased when the PAM source was further away. Trace amounts of reactive species, hydrogen peroxide and nitrite were produced in the PAM, and the anti-viral activity was probably attributable to these and their secondary reactive species. CONCLUSIONS PAM exhibits virucidal activity against surrogate viruses for COVID-19, which is time and distance from the plasma source dependent.
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Affiliation(s)
- Aditya Upadrasta
- Department of Clinical Microbiology, Royal College of Surgeons in Ireland, University of Medicine and Health Sciences, Dublin, D09 YD60, Ireland
| | - Stephen Daniels
- School of Electronic Engineering, Dublin City University, Dublin, D09 V209, Ireland
| | | | - Brendan Gilmore
- School of Pharmacy, Queen's University Belfast, Belfast BT9 7BL, Northern Ireland
| | - Hilary Humphreys
- Department of Clinical Microbiology, Royal College of Surgeons in Ireland, University of Medicine and Health Sciences, Dublin, D09 YD60, Ireland
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Shaik AM, Choi EH. Neutral - Eradication of As (III) and Congo red (CR) with green iron oxide (GIO) loaded chitosan(C) - (C - GIO) beads by a non - Thermal plasma jet via potential study. CHEMOSPHERE 2023:139363. [PMID: 37422214 DOI: 10.1016/j.chemosphere.2023.139363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Revised: 06/27/2023] [Accepted: 06/27/2023] [Indexed: 07/10/2023]
Abstract
In this potential - study, the non - thermal atmospheric pressure plasma is utilized for the neutral - eradication of water contaminants. In the air ambient region, plasma induced reactive species, like as OH•, O (O2-), H2O2 (OH•+OH•) & NOx are performed for the oxidative and reductive transformation of AsIII (H3AsO3) to AsV (H2As O4-) & Fe3O4 (Fe3+) (C-GIO) to Fe2O3 (Fe2+). Whereas, the H2O2 & NOx are quantified maximum (max.) in water, which is 144.24 & 111.82 μM, respectively. In the absence of plasma and plasma with C-GIO, the AsIII was more eradicated, which is 64.01 and 100.00%. While, the C - GIO (catalyst) synergistic enhancement was performed and proved by the neutral - degradation of CR. Also, the AsV adsorbed on C-GIO adsorption capacity qmax and redox-adsorption yield were evaluated, which are 1.36 mg/g and 20.80 g/kWh, respectively. In this research, the waste material (GIO) was recycled, modified, and utilized for the neutral - eradication of water contaminates, which are organic (CR) and inorganic (AsIII) toxicants by the controlling of H and OH• under the interaction of plasma with catalyst (C-GIO). However, in this research, plasma can't adopt the acidic, which is controlled by the C-GIO via RONS. Moreover, in this eradicative study, various water pH alignments were performed, from neutral to acidic & neutral & base for toxicants removal. Furthermore, according to WHO norms, the arsenic level was reduced to 0.01 mg/l for environmental safety. The kinetic and isotherm studies were followed by the mono and multi-layer adsorption was performed on the surface of C - GIO beads, which is estimated by the fitting of rate limiting constant R2 ≈ 1. Furthermore, the C-GIO was examined several characterizations alignments, such as crystal, surface, functional, elemental composition, retention time, mass spectrum, and elemental oriented properties. Overall, the suggested hybrid system is an eco-friendly pathway for the natural - eradication of contaminants, such as organic and inorganic compounds via waste material (GIO) recycling, modification, oxidation, reduction, adsorption, degradation, and neutralization phenomenon.
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Affiliation(s)
- Abdul Munnaf Shaik
- Electrical and Biological Physics Department, Kwangwoon University, Seoul, South Korea; Plasma Bioscience Research Centre (PBRC), Kwangwoon University, Seoul, South Korea
| | - Eun Ha Choi
- Electrical and Biological Physics Department, Kwangwoon University, Seoul, South Korea; Plasma Bioscience Research Centre (PBRC), Kwangwoon University, Seoul, South Korea.
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Khan MJ, Jovicic V, Zbogar-Rasic A, Zettel V, Delgado A, Hitzmann B. Influence of Non-Thermal Plasma Treatment on Structural Network Attributes of Wheat Flour and Respective Dough. Foods 2023; 12:foods12102056. [PMID: 37238874 DOI: 10.3390/foods12102056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 05/14/2023] [Accepted: 05/16/2023] [Indexed: 05/28/2023] Open
Abstract
Due to its "generally recognized as safe status" (GRAS) and moderate treatment temperatures, non-thermal plasma (NTP) has lately been considered a suitable replacement for chemicals in the modification of food properties and for preserving food quality. One of the promising areas for the application of NTP is the treatment of wheat flour, leading to improved flour properties and product quality and consequently to higher customer satisfaction. In the present research, the German wheat flour type 550, equivalent to all-purpose flour, was treated using NTP in a rotational reactor to determine the influence of short treatment times (≤5 min) on the properties of flour (moisture and fat content, protein, starch, color, microbial activity, and enzymes), dough (visco-elastic properties, starch, wet and dry gluten, and water absorption), and baking products (color, freshness, baked volume, crumb structure, softness, and elasticity). Based on the properties of NTP, it was expected that even very short treatment times would have a significant effect on the flour particles, which could positively affect the quality of the final baking product. Overall, the experimental analysis showed a positive effect of NTP treatment of wheat flour, e.g., decreased water activity value (<0.7), which is known to positively affect flour stability and product shelf life; dough stability increased (>8% after 5 min. treatment); dough extensibility increased (ca. 30% after 3 min treatment); etc. Regarding the baking product, further positive effects were detected, e.g., enhanced product volume (>9%), improved crumb whiteness/decreased crumb yellowness, softening of breadcrumb without a change in elasticity, and limited microorganism and enzymatic activity. Furthermore, no negative effects on the product quality were observed, even though further food quality tests are required. The presented experimental research confirms the overall positive influence of NTP treatment, even for very low treatment times, on wheat flour and its products. The presented findings are significant for the potential implementation of this technique on an industrial level.
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Affiliation(s)
- Muhammad Jehanzaib Khan
- Institute of Fluid Mechanics (LSTM), Friedrich-Alexander-University Erlangen-Nuremberg (FAU), 91058 Erlangen, Germany
| | - Vojislav Jovicic
- Institute of Fluid Mechanics (LSTM), Friedrich-Alexander-University Erlangen-Nuremberg (FAU), 91058 Erlangen, Germany
| | - Ana Zbogar-Rasic
- Institute of Fluid Mechanics (LSTM), Friedrich-Alexander-University Erlangen-Nuremberg (FAU), 91058 Erlangen, Germany
| | - Viktoria Zettel
- Department of Process Analytics and Cereal Science, University of Hohenheim, 70599 Stuttgart, Germany
| | - Antonio Delgado
- Institute of Fluid Mechanics (LSTM), Friedrich-Alexander-University Erlangen-Nuremberg (FAU), 91058 Erlangen, Germany
- German Engineering Research and Development Center, LSTME Busan, Busan 46742, Republic of Korea
| | - Bernd Hitzmann
- Department of Process Analytics and Cereal Science, University of Hohenheim, 70599 Stuttgart, Germany
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Baharlounezhad F, Mohammadi MA, Zakerhamidi MS. Plasma-based one-step synthesis of tungsten oxide nanoparticles in short time. Sci Rep 2023; 13:7427. [PMID: 37156897 PMCID: PMC10167255 DOI: 10.1038/s41598-023-34612-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 05/04/2023] [Indexed: 05/10/2023] Open
Abstract
Nanostructured tungsten oxide as a semiconductor metal oxide has attracted considerable attention due to its promising and notable properties. Tungsten oxide nanoparticles can be used in a wide range of technology and applications such as catalysts, sensors, supercapacitors, etc. In this study, nanoparticles were prepared via a simple method using an atmospheric glow discharge. This modern approach had many advantages such as high efficiency and straightforward function. Synthesis performance was done in only one step and a short time which started at 2 min and had been continued for 8 min. The X-ray diffraction pattern revealed the formation [Formula: see text] at atmospheric pressure. The synthesized particle size was characterized using scanning electron microscopy. According to the experimental results, the synthesis was greatly influenced by the applied voltage, gas type, and plasma forming side over the water surface. Increases in electrical potential difference and thermal conductivity of the gas led to a greater rate of synthesis, while this rate was reduced by decreasing the atomic weight of the gas.
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Affiliation(s)
| | - M A Mohammadi
- Faculty of Physics, University of Tabriz, Tabriz, Iran.
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13
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Oshima M, Moriwaki H. Photoreduction of Cr(VI) by TiO 2 adsorbed gold nanoparticles and perylene as a novel organic-inorganic hybrid photocatalyst. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:69122-69134. [PMID: 37129822 DOI: 10.1007/s11356-023-27283-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Accepted: 04/24/2023] [Indexed: 05/03/2023]
Abstract
The photoreduction of hexavalent chromium (Cr(VI)) using TiO2 adsorbed gold nanoparticles and perylene (Au/Pe/TiO2) as a novel organic-inorganic hybrid photocatalyst has been studied. The irradiation by a Xe lamp of a Cr (VI) aqueous solution (0.1 mM) with the Au/Pe/TiO2 powder resulted in the reduction of the Cr(VI). The rate of Cr(VI) reduction reached 98.3% by the irradiation for 60 min. The reaction rate constant using Au/Pe/TiO2 (0.0545 min-1) was higher than that of TiO2 (0.0218 min-1), Pe/TiO2 (0.0303 min-1), or Au/TiO2 (0.0393 min-1). Gold nanoparticles and perylene synergistically accelerated the TiO2 photocatalytic reaction. This result is due to the Z-scheme electron transfer between Pe and TiO2 and the suppression of charge recombination by the gold nanoparticles. The irradiation of sunlight also led to the photocatalytic reduction of the Cr(VI) by Au/Pe/TiO2. In addition, successive reduction of the Cr(VI) was achieved by using a column packed with the Au/Pe/TiO2 powder immobilized by calcium alginate gel.
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Affiliation(s)
- Mahiro Oshima
- Department of Applied Biology, Faculty of Textile Science and Technology, Shinshu University, 3-15-1, Tokida, Ueda, 386-8567, Japan
| | - Hiroshi Moriwaki
- Department of Applied Biology, Faculty of Textile Science and Technology, Shinshu University, 3-15-1, Tokida, Ueda, 386-8567, Japan.
- Research Initiative for Supra-Materials, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, 3-15-1, Tokida, Ueda, 386-8567, Japan.
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14
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Quinson J, Kunz S, Arenz M. Surfactant-Free Colloidal Syntheses of Precious Metal Nanoparticles for Improved Catalysts. ACS Catal 2023. [DOI: 10.1021/acscatal.2c05998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
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15
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Kumar A, Škoro N, Gernjak W, Jovanović O, Petrović A, Živković S, Lumbaque EC, Farré MJ, Puač N. Degradation of diclofenac and 4-chlorobenzoic acid in aqueous solution by cold atmospheric plasma source. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 864:161194. [PMID: 36581289 DOI: 10.1016/j.scitotenv.2022.161194] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 12/21/2022] [Accepted: 12/21/2022] [Indexed: 06/17/2023]
Abstract
In this study, cold atmospheric plasma (CAP) was explored as a novel advanced oxidation process (AOP) for water decontamination. Samples with high concentration aqueous solutions of Diclofenac sodium (DCF) and 4-Chlorobenzoic acid (pCBA) were treated by plasma systems. Atmospheric pressure plasma jets (APPJs) with a 1 pin-electrode and multi-needle electrodes (3 pins) configurations were used. The plasma generated using argon as working gas was touching a stationary liquid surface in the case of pin electrode-APPJ while for multi-needle electrodes-APPJ the liquid sample was flowing during treatment. In both configurations, a commercial RF power supply was used for plasma ignition. Measurement of electrical signals enabled precise determination of power delivered from the plasma to the sample. The optical emission spectroscopy (OES) of plasma confirmed the appearance of excited reactive species in the plasma, such as hydroxyl radicals and atomic oxygen which are considered to be key reactive species in AOPs for the degradation of organic pollutants. Treatments were conducted with two different volumes (5 mL and 250 mL) of contaminated water samples. The data acquired allowed calculation of degradation efficiency and energy yield for both plasma sources. When treated with pin-APPJ, almost complete degradation of 5 mL DCF occurred in 1 min with the initial concentration of 25 mg/L and 50 mg/L, whereas 5 mL pCBA almost degraded in 10 min at the initial concentration of 25 mg/L and 40 mg/L. The treatment results with multi-needle electrodes system confirmed that DCF almost completely degraded in 30 min and pCBA degraded about 24 % in 50 min. The maximum calculated energy yield for 50 % removal was 6465 mg/kWh after treatment of 250 mL of DCF aqueous solution utilizing the plasma recirculation technique. The measurements also provided an insight to the kinetics of DCF and pCBA degradation. Degradation products and pathways for DCF were determined using LC-MS measurements.
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Affiliation(s)
- Amit Kumar
- Institute of Physics, University of Belgrade, Pregrevica 118, 11080 Belgrade, Serbia; Universitat de Girona, 17003 Girona, Spain.
| | - Nikola Škoro
- Institute of Physics, University of Belgrade, Pregrevica 118, 11080 Belgrade, Serbia
| | - Wolfgang Gernjak
- Catalan Institute for Water Research (ICRA), 17003 Girona, Spain; Catalan Institution for Research and Advanced Studies (ICREA), 08010 Barcelona, Spain
| | - Olivera Jovanović
- Institute of Physics, University of Belgrade, Pregrevica 118, 11080 Belgrade, Serbia
| | - Anđelija Petrović
- Institute of Physics, University of Belgrade, Pregrevica 118, 11080 Belgrade, Serbia
| | - Suzana Živković
- Institute for Biological Research "Siniša Stanković", University of Belgrade, Bulevar despota stefana 142, 11060, Serbia
| | | | - Maria José Farré
- Catalan Institute for Water Research (ICRA), 17003 Girona, Spain
| | - Nevena Puač
- Institute of Physics, University of Belgrade, Pregrevica 118, 11080 Belgrade, Serbia
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16
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Mosaka TBM, Unuofin JO, Daramola MO, Tizaoui C, Iwarere SA. Inactivation of antibiotic-resistant bacteria and antibiotic-resistance genes in wastewater streams: Current challenges and future perspectives. Front Microbiol 2023; 13:1100102. [PMID: 36733776 PMCID: PMC9888414 DOI: 10.3389/fmicb.2022.1100102] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Accepted: 12/29/2022] [Indexed: 01/17/2023] Open
Abstract
The discovery of antibiotics, which was once regarded as a timely medical intervention now leaves a bitter aftertaste: antimicrobial resistance (AMR), due to the unregulated use of these compounds and the poor management receiving wastewaters before discharge into pristine environments or the recycling of such treated waters. Wastewater treatment plants (WWTPs) have been regarded a central sink for the mostly unmetabolized or partially metabolised antibiotics and is also pivotal to the incidence of antibiotic resistance bacteria (ARBs) and their resistance genes (ARGs), which consistently contribute to the global disease burden and deteriorating prophylaxis. In this regard, we highlighted WWTP-antibiotics consumption-ARBs-ARGs nexus, which might be critical to understanding the epidemiology of AMR and also guide the precise prevention and remediation of such occurrences. We also discovered the unsophistication of conventional WWTPs and treatment techniques for adequate treatment of antibiotics, ARBs and ARGs, due to their lack of compliance with environmental sustainability, then ultimately assessed the prospects of cold atmospheric plasma (CAP). Herein, we observed that CAP technologies not only has the capability to disinfect wastewater polluted with copious amounts of chemicals and biologicals, but also have a potential to augment bioelectricity generation, when integrated into bio electrochemical modules, which future WWTPs should be retrofitted to accommodate. Therefore, further research should be conducted to unveil more of the unknowns, which only a snippet has been highlighted in this study.
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Affiliation(s)
- Thabang B. M. Mosaka
- Department of Chemical Engineering, Faculty of Engineering, Built Environment and Information Technology, University of Pretoria, Pretoria, South Africa
| | - John O. Unuofin
- Department of Chemical Engineering, Faculty of Engineering, Built Environment and Information Technology, University of Pretoria, Pretoria, South Africa
| | - Michael O. Daramola
- Department of Chemical Engineering, Faculty of Engineering, Built Environment and Information Technology, University of Pretoria, Pretoria, South Africa
| | - Chedly Tizaoui
- Water and Resources Recovery Research Lab, Department of Chemical Engineering, Faculty of Science and Engineering, Swansea University, Swansea, United Kingdom
| | - Samuel A. Iwarere
- Department of Chemical Engineering, Faculty of Engineering, Built Environment and Information Technology, University of Pretoria, Pretoria, South Africa,*Correspondence: Samuel A. Iwarere, ✉
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17
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Sebastian A, Lipa D, Ptasinska S. DNA Strand Breaks and Denaturation as Probes of Chemical Reactivity versus Thermal Effects of Atmospheric Pressure Plasma Jets. ACS OMEGA 2023; 8:1663-1670. [PMID: 36643434 PMCID: PMC9835636 DOI: 10.1021/acsomega.2c07262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Accepted: 12/19/2022] [Indexed: 06/17/2023]
Abstract
An atmospheric pressure plasma jet (APPJ) is being advanced as an alternative radiation type that offers excellent efficacy in an array of medical applications against specific biological targets such as DNA. This work explores the possibility of implementing DNA and its damage as a probe for specific plasma diagnostics such as reactive plasma species formation and transient local heating. We analyzed both APPJ characteristics based on the detection of plasma-induced strand breaks and DNA denaturation. Further, we implemented a machine learning model based on artificial neural networks to predict the type and extent of DNA damage for a given combination of APPJ parameter values. This methodology is an important step toward deciphering and explaining the potential adverse effects of APPJ on biological samples of any prospective interest in medicine.
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Affiliation(s)
- Amal Sebastian
- Radiation
Laboratory, University of Notre Dame, Notre Dame, Indiana 46556, United States
- Department
of Physics and Astronomy, University of
Notre Dame, Notre Dame, Indiana 46556, United States
| | - Daniel Lipa
- Radiation
Laboratory, University of Notre Dame, Notre Dame, Indiana 46556, United States
- Department
of Applied and Computational Mathematics and Statistics, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Sylwia Ptasinska
- Radiation
Laboratory, University of Notre Dame, Notre Dame, Indiana 46556, United States
- Department
of Physics and Astronomy, University of
Notre Dame, Notre Dame, Indiana 46556, United States
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18
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Verma S, Lee T, Sahle-Demessie E, Ateia M, Nadagouda MN. Recent advances on PFAS degradation via thermal and nonthermal methods. CHEMICAL ENGINEERING JOURNAL ADVANCES 2022; 13:1-11. [PMID: 36923300 PMCID: PMC10013708 DOI: 10.1016/j.ceja.2022.100421] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
Abstract
Per- and polyfluoroalkyl substances (PFAS) are a set of synthetic chemicals which contain several carbon-fluorine (C-F) bonds and have been in production for the past eight decades. PFAS have been used in several industrial and consumer products including nonstick pans, food packaging, firefighting foams, and carpeting. PFAS require proper investigations worldwide due to their omnipresence in the biotic environment and the resulting pollution to drinking water sources. These harmful chemicals have been associated with adverse health effects such as liver damage, cancer, low fertility, hormone subjugation, and thyroid illness. In addition, these fluorinated compounds show high chemical, thermal, biological, hydrolytic, photochemical, and oxidative stability. Therefore, effective treatment processes are required for the removal and degradation of PFAS from wastewater, drinking water, and groundwater. Previous review papers have provided excellent summaries on PFAS treatment technologies, but the focus has been on the elimination efficiency without providing mechanistic understanding of removal/degradation pathways. The present review summarizes a comprehensive examination of various thermal and non-thermal PFAS destruction technologies. It includes sonochemical/ultrasound degradation, microwave hydrothermal treatment, subcritical or supercritical treatment, electrical discharge plasma technology, thermal destruction methods/incinerations, low/high-temperature thermal desorption process, vapor energy generator (VEG) technology and mechanochemical destruction. The background, degradation mechanisms/pathways, and advances of each remediation process are discussed in detail in this review.
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Affiliation(s)
- Sanny Verma
- Pegasus Technical Services, Inc., Cincinnati, Ohio 4219, USA
| | - Tae Lee
- Center for Environmental Solutions and Emergency Response, Office of Research and Development, U.S. Environmental Protection Agency, Cincinnati, Ohio 45268, USA
| | - Endalkachew Sahle-Demessie
- Center for Environmental Solutions and Emergency Response, Office of Research and Development, U.S. Environmental Protection Agency, Cincinnati, Ohio 45268, USA
| | - Mohamed Ateia
- Center for Environmental Solutions and Emergency Response, Office of Research and Development, U.S. Environmental Protection Agency, Cincinnati, Ohio 45268, USA
| | - Mallikarjuna N. Nadagouda
- Center for Environmental Solutions and Emergency Response, Office of Research and Development, U.S. Environmental Protection Agency, Cincinnati, Ohio 45268, USA
- Corresponding author. (M.N. Nadagouda)
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19
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Boonyawan D, Lamasai K, Umongno C, Rattanatabtimtong S, Yu L, Kuensaen C, Maitip J, Thana P. Surface dielectric barrier discharge plasma-treated pork cut parts: bactericidal efficacy and physiochemical characteristics. Heliyon 2022; 8:e10915. [PMID: 36247123 PMCID: PMC9561744 DOI: 10.1016/j.heliyon.2022.e10915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Revised: 03/09/2022] [Accepted: 09/28/2022] [Indexed: 11/30/2022] Open
Abstract
Maintaining agro-food product safety remains a significant challenge for satisfying local and global consumers in tropical countries. This issue has been growing due to new pathogen strains, low infectious doses, increased virulence, antibiotic resistance, cross-contamination or recontamination of foods, food-contact surfaces, and biocontamination of water within the food production chain. To respond to this situation, we studied the inactivation efficacy of surface dielectric barrier discharge (SDBD) plasma against pathogens on the surface of various pork cut parts, including the loin, hip, belly, liver, and intestine. The SDBD plasma was operated at 0.30 W/cm2 in ambient air, with a gap of 5.0 mm between the plasma generator and the sample surface. Up to 96% germicidal efficiency against surface pathogens were observed, showing after 1 min of SDBD plasma exposure. Visualization of reactive species deposition on the treated surface using KI-starch agar gel reagent indicated a non-uniform distribution of the SDBD-generated reactive species on the treated surface. Following the indirect plasma treatment by the SDBD reactor, the overall color of pork cut samples after plasma treatment was significantly different compared with before. However, the surface morphology and structural characterization of the treated pork cut samples were not significantly altered, and residual nitrites and nitrates were lower than the restriction level for safe consumption. The SDBD reactor should be developed further to produce a uniform distribution of reactive species on the meat surface for the improvement of the decontamination effect without undesirable effects on meat quality parameters.
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Affiliation(s)
- D. Boonyawan
- Plasma and Beam Physics Research Facility, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - K. Lamasai
- Doctor of Philosophy Program in Nanoscience and Nanotechnology (International Program/Interdisciplinary), Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - C. Umongno
- Plasma and Beam Physics Research Facility, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - S. Rattanatabtimtong
- Department of Animal Science, Faculty of Agriculture at Kamphaeng Saen, Kasetsart University, Kamphaeng Saen Campus, Nakhon Pathom 73140, Thailand
| | - L.D. Yu
- Plasma and Beam Physics Research Facility, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - C. Kuensaen
- International College of Digital Innovation, Chiang Mai University, Chiang Mai 50200, Thailand
| | - J. Maitip
- Faculty of Science, Energy and Environment, King Mongkut’s University of Technology North Bangkok, Rayong Campus, Rayong 21120, Thailand
| | - P. Thana
- Faculty of Science, Energy and Environment, King Mongkut’s University of Technology North Bangkok, Rayong Campus, Rayong 21120, Thailand,Corresponding author.
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20
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Shaw P, Vanraes P, Kumar N, Bogaerts A. Possible Synergies of Nanomaterial-Assisted Tissue Regeneration in Plasma Medicine: Mechanisms and Safety Concerns. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3397. [PMID: 36234523 PMCID: PMC9565759 DOI: 10.3390/nano12193397] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 09/05/2022] [Accepted: 09/06/2022] [Indexed: 06/16/2023]
Abstract
Cold atmospheric plasma and nanomedicine originally emerged as individual domains, but are increasingly applied in combination with each other. Most research is performed in the context of cancer treatment, with only little focus yet on the possible synergies. Many questions remain on the potential of this promising hybrid technology, particularly regarding regenerative medicine and tissue engineering. In this perspective article, we therefore start from the fundamental mechanisms in the individual technologies, in order to envision possible synergies for wound healing and tissue recovery, as well as research strategies to discover and optimize them. Among these strategies, we demonstrate how cold plasmas and nanomaterials can enhance each other's strengths and overcome each other's limitations. The parallels with cancer research, biotechnology and plasma surface modification further serve as inspiration for the envisioned synergies in tissue regeneration. The discovery and optimization of synergies may also be realized based on a profound understanding of the underlying redox- and field-related biological processes. Finally, we emphasize the toxicity concerns in plasma and nanomedicine, which may be partly remediated by their combination, but also partly amplified. A widespread use of standardized protocols and materials is therefore strongly recommended, to ensure both a fast and safe clinical implementation.
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Affiliation(s)
- Priyanka Shaw
- Research Group PLASMANT, Department of Chemistry, University of Antwerp, 2610 Antwerp, Belgium
| | - Patrick Vanraes
- Research Group PLASMANT, Department of Chemistry, University of Antwerp, 2610 Antwerp, Belgium
| | - Naresh Kumar
- Department of Medical Devices, National Institute of Pharmaceutical Education and Research, Guwahati 781125, Assam, India
| | - Annemie Bogaerts
- Research Group PLASMANT, Department of Chemistry, University of Antwerp, 2610 Antwerp, Belgium
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21
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de Melo TF, Rocha LC, Silva RP, Pessoa RS, Negreiros AMP, Sales Júnior R, Tavares MB, Alves Junior C. Plasma–Saline Water Interaction: A Systematic Review. MATERIALS 2022; 15:ma15144854. [PMID: 35888319 PMCID: PMC9324451 DOI: 10.3390/ma15144854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 06/28/2022] [Accepted: 07/08/2022] [Indexed: 11/16/2022]
Abstract
Plasma–liquid interaction research has developed substantially in recent years due, mostly, to the numerous applications of cold atmospheric plasma (CAP). Plasma–liquid interactions are influenced by the concentrations of the ionic species present in the liquid environment, and few studies have paid attention to saline water, which generally mediates the reactions in many plasma applications. Therefore, the present review aims to explore the main results and the influence of variables on the modification of properties of saline water by CAP sources following the guidelines of the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA). The searches were carried out in the Scopus, Science Direct, and Web of Science databases, resulting in the inclusion of 37 studies. The main effects of the interaction between CAP and saline water are (i) the production of reactive oxygen and nitrogen species (RONS); (ii) the increase in conductivity and decrease in pH, directly proportional to the increase in discharge voltage; (iii) and the effective area of interaction and the shortest distance between electrode and solution. Other effects are the localized evaporation and crystallization of salts, which make the interaction between plasma and saline water a promising field in the development of technologies for desalination and improvement of liquid properties.
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Affiliation(s)
- Tatiane Fonseca de Melo
- Laboratorio de Plasma Aplicação na Agricultura, Departamento de Ciências Exatas e Naturais, Saúde e Meio Ambiente—Labplasma, Universidade Federal Rural do Semiárido, Mossoró 59625-900, Brazil; (L.C.R.); (R.P.S.); (C.A.J.)
- Correspondence:
| | - Lucas Cabral Rocha
- Laboratorio de Plasma Aplicação na Agricultura, Departamento de Ciências Exatas e Naturais, Saúde e Meio Ambiente—Labplasma, Universidade Federal Rural do Semiárido, Mossoró 59625-900, Brazil; (L.C.R.); (R.P.S.); (C.A.J.)
| | - Rútilo Pereira Silva
- Laboratorio de Plasma Aplicação na Agricultura, Departamento de Ciências Exatas e Naturais, Saúde e Meio Ambiente—Labplasma, Universidade Federal Rural do Semiárido, Mossoró 59625-900, Brazil; (L.C.R.); (R.P.S.); (C.A.J.)
| | - Rodrigo Sávio Pessoa
- Laboratório de Plasmas e Processos, Instituto Tecnológico de Aeronáutica, São José dos Campos 12228-900, Brazil;
| | - Andreia Mitsa Paiva Negreiros
- Departamento de Ciências Agronômicas e Florestais, Universidade Federal Rural do Semi-Árido, Mossoro 59625-900, Brazil; (A.M.P.N.); (R.S.J.); (M.B.T.)
| | - Rui Sales Júnior
- Departamento de Ciências Agronômicas e Florestais, Universidade Federal Rural do Semi-Árido, Mossoro 59625-900, Brazil; (A.M.P.N.); (R.S.J.); (M.B.T.)
| | - Moisés Bento Tavares
- Departamento de Ciências Agronômicas e Florestais, Universidade Federal Rural do Semi-Árido, Mossoro 59625-900, Brazil; (A.M.P.N.); (R.S.J.); (M.B.T.)
| | - Clodomiro Alves Junior
- Laboratorio de Plasma Aplicação na Agricultura, Departamento de Ciências Exatas e Naturais, Saúde e Meio Ambiente—Labplasma, Universidade Federal Rural do Semiárido, Mossoró 59625-900, Brazil; (L.C.R.); (R.P.S.); (C.A.J.)
- Programa de Pós-Graduação em Engenharia Mecânica, Universidade Federal do Rio Grande do Norte, Natal 59078-970, Brazil
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22
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Mechanistic Insight into Permeation of Plasma-Generated Species from Vacuum into Water Bulk. Int J Mol Sci 2022; 23:ijms23116330. [PMID: 35683009 PMCID: PMC9181481 DOI: 10.3390/ijms23116330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 05/20/2022] [Accepted: 05/25/2022] [Indexed: 11/18/2022] Open
Abstract
Due to their potential benefits, cold atmospheric plasmas (CAPs), as biotechnological tools, have been used for various purposes, especially in medical and agricultural applications. The main effect of CAP is associated with reactive oxygen and nitrogen species (RONS). In order to deliver these RONS to the target, direct or indirect treatment approaches have been employed. The indirect method is put into practice via plasma-activated water (PAW). Despite many studies being available in the field, the permeation mechanisms of RONS into water at the molecular level still remain elusive. Here, we performed molecular dynamics simulations to study the permeation of RONS from vacuum into the water interface and bulk. The calculated free energy profiles unravel the most favourable accumulation positions of RONS. Our results, therefore, provide fundamental insights into PAW and RONS chemistry to increase the efficiency of PAW in biological applications.
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23
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Degradation of Bacterial Antibiotic Resistance Genes during Exposure to Non-Thermal Atmospheric Pressure Plasma. Antibiotics (Basel) 2022; 11:antibiotics11060747. [PMID: 35740152 PMCID: PMC9219888 DOI: 10.3390/antibiotics11060747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 05/25/2022] [Accepted: 05/26/2022] [Indexed: 11/16/2022] Open
Abstract
Bacterial resistance to antibiotics has become a major public health problem in recent years. The occurrence of antibiotics in the environment, especially in wastewater treatment plants, has contributed to the development of antibiotic-resistant bacteria (ARB) and the spread of antibiotic resistance genes (ARGs). Despite the potential of some conventional processes used in wastewater treatment plants, the removal of ARB and ARGs remains a challenge that requires further research and development of new technologies to avoid the release of emerging contaminants into aquatic environments. Non-thermal atmospheric pressure plasmas (NTAPPs) have gained a significant amount of interest for wastewater treatment due to their oxidizing potential. They have shown their effectiveness in the inactivation of a wide range of bacteria in several fields. In this review, we discuss the application of NTAPPs for the degradation of antibiotic resistance genes in wastewater treatment.
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24
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Antimicrobial adhesive films by plasma-enabled polymerisation of m-cresol. Sci Rep 2022; 12:7560. [PMID: 35534598 PMCID: PMC9085887 DOI: 10.1038/s41598-022-11400-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 04/18/2022] [Indexed: 12/30/2022] Open
Abstract
This work reveals a versatile new method to produce films with antimicrobial properties that can also bond materials together with robust tensile adhesive strength. Specifically, we demonstrate the formation of coatings by using a dielectric barrier discharge (DBD) plasma to convert a liquid small-molecule precursor, m-cresol, to a solid film via plasma-assisted on-surface polymerisation. The films are quite appealing from a sustainability perspective: they are produced using a low-energy process and from a molecule produced in abundance as a by-product of coal tar processing. This process consumes only 1.5 Wh of electricity to create a 1 cm2 film, which is much lower than other methods commonly used for film deposition, such as chemical vapour deposition (CVD). Plasma treatments were performed in plain air without the need for any carrier or precursor gas, with a variety of exposure durations. By varying the plasma parameters, it is possible to modify both the adhesive property of the film, which is at a maximum at a 1 min plasma exposure, and the antimicrobial property of the film against Escherichia coli, which is at a maximum at a 30 s exposure.
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25
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Applications of Plasma Produced with Electrical Discharges in Gases for Agriculture and Biomedicine. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12094405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The use of thermal and non-thermal atmospheric pressure plasma to solve problems related to agriculture and biomedicine is the focus of this paper. Plasma in thermal equilibrium is used where heat is required. In agriculture, it is used to treat soil and land contaminated by the products of biomass, plastics, post-hospital and pharmaceutical waste combustion, and also by ecological phenomena that have recently been observed, such as droughts, floods and storms, leading to environmental pollution. In biomedical applications, thermal plasma is used in so-called indirect living tissue treatment. The sources of thermal plasma are arcs, plasma torches and microwave plasma reactors. In turn, atmospheric pressure cold (non-thermal) plasma is applied in agriculture and biomedicine where heat adversely affects technological processes. The thermodynamic imbalance of cold plasma makes it suitable for organic syntheses due its low power requirements and the possibility of conducting chemical reactions in gas at relatively low and close to ambient temperatures. It is also suitable in the treatment of living tissues and sterilisation of medical instruments made of materials that are non-resistant to high temperatures. Non-thermal and non-equilibrium discharges at atmospheric pressure that include dielectric barrier discharges (DBDs) and atmospheric pressure plasma jets (APPJs), as well as gliding arc (GAD), can be the source of cold plasma. This paper presents an overview of agriculture and soil protection problems and biomedical and health protection problems that can be solved with the aid of plasma produced with electrical discharges. In particular, agricultural processes related to water, sewage purification with ozone and with advanced oxidation processes, as well as those related to contaminated soil treatment and pest control, are presented. Among the biomedical applications of cold plasma, its antibacterial activity, wound healing, cancer treatment and dental problems are briefly discussed.
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Lee HR, Lee YS, You YS, Huh JY, Kim K, Hong YC, Kim CH. Antimicrobial effects of microwave plasma-activated water with skin protective effect for novel disinfectants in pandemic era. Sci Rep 2022; 12:5968. [PMID: 35396389 PMCID: PMC8992786 DOI: 10.1038/s41598-022-10009-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 02/21/2022] [Indexed: 12/19/2022] Open
Abstract
Skin antiseptics have important implications for public health and medicine. Although conventional antiseptics have considerable antimicrobial activity, skin toxicity and the development of resistance are common problems. Plasma-treated water has sterilization and tissue-regenerative effects. Therefore, the aim of this study was to identify whether plasma-activated water (PAW) manufactured by our microwave plasma system can be used as a novel antiseptic solution for skin protection. PAW was produced by dissolving reactive nitrogen oxide gas using microwave plasma in deionized water. The antibacterial effects of PAW against Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, Bacillus cereus, and Salmonella typhimurium and effective concentrations were investigated by a solid agar plate assay. The factors mediating the effects of PAW were evaluated by the addition of reactive species scavengers. Cytotoxicity and cell viability assays were performed to examine the protective effect of PAW on normal skin cells. PAW exhibited excellent sterilization and no toxicity in normal skin cells. Experiments also confirmed the potential of PAW as a sanitizer for SARS-CoV-2. Our findings support the use of PAW as an effective skin disinfectant with good safety in the current situation of a global pandemic.
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Affiliation(s)
- Hye Ran Lee
- Department of Otolaryngology-Head and Neck Surgery, Catholic Kwandong University International St. Mary's Hospital, Incheon, 22711, Republic of Korea
| | - Yun Sang Lee
- Department of Otolaryngology, School of Medicine, Ajou University, 164 World-Cup Street, Yeongtong-gu, Suwon, 16499, Republic of Korea
| | - Young Suk You
- Plarit Co., Ltd., 443 Samnye-ro Samnye-eup, Wanju-gun, Jeollabuk-do, 565-701, Republic of Korea
| | - Jin Young Huh
- ICD Co., Ltd., 274 Manse-ro, Daedeok-myeon, Anseong-si, Gyeonggi-do, 17542, Republic of Korea
| | - Kangil Kim
- Institute of Plasma Technology, Korea Institute of Fusion Energy, 814-2 Ohsikdo-dong, Gunsan, 573-540, Republic of Korea
| | - Yong Cheol Hong
- Division of Applied Technology Research, National Fusion Research Institute, 113 Gwahangno, Yuseong-gu, Daejeon, 305-333, Republic of Korea
| | - Chul-Ho Kim
- Department of Otolaryngology, School of Medicine, Ajou University, 164 World-Cup Street, Yeongtong-gu, Suwon, 16499, Republic of Korea.
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Milhan NVM, Chiappim W, Sampaio ADG, Vegian MRDC, Pessoa RS, Koga-Ito CY. Applications of Plasma-Activated Water in Dentistry: A Review. Int J Mol Sci 2022; 23:ijms23084131. [PMID: 35456947 PMCID: PMC9029124 DOI: 10.3390/ijms23084131] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Revised: 04/05/2022] [Accepted: 04/06/2022] [Indexed: 12/12/2022] Open
Abstract
The activation of water by non-thermal plasma creates a liquid with active constituents referred to as plasma-activated water (PAW). Due to its active constituents, PAW may play an important role in different fields, such as agriculture, the food industry and healthcare. Plasma liquid technology has received attention in recent years due to its versatility and good potential, mainly focused on different health care purposes. This interest has extended to dentistry, since the use of a plasma–liquid technology could bring clinical advantages, compared to direct application of non-thermal atmospheric pressure plasmas (NTAPPs). The aim of this paper is to discuss the applicability of PAW in different areas of dentistry, according to the published literature about NTAPPs and plasma–liquid technology. The direct and indirect application of NTAPPs are presented in the introduction. Posteriorly, the main reactors for generating PAW and its active constituents with a role in biomedical applications are specified, followed by a section that discusses, in detail, the use of PAW as a tool for different oral diseases.
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Affiliation(s)
- Noala Vicensoto Moreira Milhan
- Oral Biopathology Graduate Program, São José dos Campos Institute of Science & Technology, São Paulo State University, UNESP, São Paulo 12245-000, Brazil; (A.d.G.S.); (M.R.d.C.V.); (C.Y.K.-I.)
- Correspondence: ; Tel.: +55-12-991851206
| | - William Chiappim
- Plasma and Processes Laboratory, Department of Physics, Aeronautics Institute of Technology, Praça Marechal Eduardo Gomes 50, São José dos Campos 12228-900, Brazil; (W.C.); (R.S.P.)
| | - Aline da Graça Sampaio
- Oral Biopathology Graduate Program, São José dos Campos Institute of Science & Technology, São Paulo State University, UNESP, São Paulo 12245-000, Brazil; (A.d.G.S.); (M.R.d.C.V.); (C.Y.K.-I.)
| | - Mariana Raquel da Cruz Vegian
- Oral Biopathology Graduate Program, São José dos Campos Institute of Science & Technology, São Paulo State University, UNESP, São Paulo 12245-000, Brazil; (A.d.G.S.); (M.R.d.C.V.); (C.Y.K.-I.)
| | - Rodrigo Sávio Pessoa
- Plasma and Processes Laboratory, Department of Physics, Aeronautics Institute of Technology, Praça Marechal Eduardo Gomes 50, São José dos Campos 12228-900, Brazil; (W.C.); (R.S.P.)
| | - Cristiane Yumi Koga-Ito
- Oral Biopathology Graduate Program, São José dos Campos Institute of Science & Technology, São Paulo State University, UNESP, São Paulo 12245-000, Brazil; (A.d.G.S.); (M.R.d.C.V.); (C.Y.K.-I.)
- Department of Environment Engineering, São José dos Campos Institute of Science & Technology, São Paulo State University, UNESP, São Paulo 12247-016, Brazil
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Patel J, Keshvani MJ. Study of Plasma–Water Interactions: Effect of Plasma Electrons and Production of Hydrogen Peroxide. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2021. [DOI: 10.1134/s0036024421130161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Lebedev YA, Tatarinov AV, Epshtein IL, Titov AY. One-Dimensional Simulation of Microwave Discharge in a Gas Bubble in Water. HIGH ENERGY CHEMISTRY 2021. [DOI: 10.1134/s0018143921060096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Sohaib Hameed, Qasim I, Ahmed MW. Comparative Study of Argon and Oxygen Injected Water Surface Barrier Micro Discharge. J WATER CHEM TECHNO+ 2021. [DOI: 10.3103/s1063455x21050052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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31
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Kim S, Kim CH. Applications of Plasma-Activated Liquid in the Medical Field. Biomedicines 2021; 9:biomedicines9111700. [PMID: 34829929 PMCID: PMC8615748 DOI: 10.3390/biomedicines9111700] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 11/01/2021] [Accepted: 11/12/2021] [Indexed: 12/18/2022] Open
Abstract
Much progress has been made since plasma was discovered in the early 1900s. The first form of plasma was thermal type, which was limited for medical use due to potential thermal damage on living cells. In the late 1900s, with the development of a nonthermal atmospheric plasma called cold plasma, profound clinical research began and ‘plasma medicine’ became a new area in the academic field. Plasma began to be used mainly for environmental problems, such as water purification and wastewater treatment, and subsequent research on plasma and liquid interaction led to the birth of ‘plasma-activated liquid’ (PAL). PAL is currently used in the fields of environment, food, agriculture, nanoparticle synthesis, analytical chemistry, and sterilization. In the medical field, PAL usage can be expanded for accessing places where direct application of plasma is difficult. In this review, recent studies with PAL will be introduced to inform researchers of the application plan and possibility of PAL in the medical field.
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Affiliation(s)
- Sungryeal Kim
- Department of Otolaryngology, School of Medicine, Ajou University, Suwon 16499, Korea;
| | - Chul-Ho Kim
- Department of Otolaryngology, School of Medicine, Ajou University, Suwon 16499, Korea;
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, Korea
- Correspondence:
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Xiang Q, Huangfu L, Dong S, Ma Y, Li K, Niu L, Bai Y. Feasibility of atmospheric cold plasma for the elimination of food hazards: Recent advances and future trends. Crit Rev Food Sci Nutr 2021:1-19. [PMID: 34761962 DOI: 10.1080/10408398.2021.2002257] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
In recent decades, food safety has emerged as a worldwide public health issue with economic and political implications. Pesticide residues, mycotoxins, allergens, and antinutritional factors are the primary concerns associated with food products due to their potential adverse health effects. Although various conventional processing methods (such as washing, peeling, and cooking) have been used to reduce or eliminate these hazards from agricultural food materials, the results obtained are not quite satisfactory. Recently, atmospheric cold plasma (ACP), an emerging low -temperature and green processing technology, has shown great potential for mitigating food hazards. However, detailed descriptions of the effects of ACP treatment on food hazards are still not available. Thus, the current review aims to highlight recent studies on the efficacy and application of ACP in the reduction or elimination of pesticide residues, mycotoxins, allergens, and antinutritional factors in various food products. The possible working mechanisms of ACP and its effect on food quality, and the toxicity of degradation products are emphatically discussed. In addition, multiple factors affecting the efficacy of ACP are summarized in detail. At the same time, the major technical challenges for practical application and future development prospects of this emerging technology are also highlighted.
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Affiliation(s)
- Qisen Xiang
- College of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou, PR China.,Henan Key Laboratory of Cold Chain Food Quality and Safety Control, Zhengzhou, PR China
| | - Lulu Huangfu
- College of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou, PR China.,Henan Key Laboratory of Cold Chain Food Quality and Safety Control, Zhengzhou, PR China
| | - Shanshan Dong
- College of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou, PR China.,Henan Key Laboratory of Cold Chain Food Quality and Safety Control, Zhengzhou, PR China
| | - Yunfang Ma
- College of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou, PR China.,Henan Key Laboratory of Cold Chain Food Quality and Safety Control, Zhengzhou, PR China
| | - Ke Li
- College of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou, PR China.,Henan Key Laboratory of Cold Chain Food Quality and Safety Control, Zhengzhou, PR China
| | - Liyuan Niu
- College of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou, PR China.,Henan Key Laboratory of Cold Chain Food Quality and Safety Control, Zhengzhou, PR China
| | - Yanhong Bai
- College of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou, PR China.,Henan Key Laboratory of Cold Chain Food Quality and Safety Control, Zhengzhou, PR China
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Lee HR, Lee HY, Heo J, Jang JY, Shin YS, Kim CH. Liquid-type nonthermal atmospheric plasma enhanced regenerative potential of silk-fibrin composite gel in radiation-induced wound failure. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 128:112304. [PMID: 34474855 DOI: 10.1016/j.msec.2021.112304] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 06/29/2021] [Accepted: 07/04/2021] [Indexed: 12/15/2022]
Abstract
Delayed wound healing in heavily irradiated areas is a serious clinical complication that makes widespread therapeutic use of radiation difficult. Efficient treatment strategies are urgently required for addressing radiation-induced wound failure. Herein, we applied liquid-type nonthermal atmospheric plasma (LTP) to a silk-fibrin (SF) composite gel to investigate whether controlled release of LTP from SF hydrogel not only induced favorable cellular events in an irradiated wound bed but also modulated the SF hydrogel microstructure itself, eventually facilitating the development of a regenerative microenvironment. Scanning electron microscopy and Fourier-transform infrared spectroscopy revealed that LTP modulated the microstructures and chemical bindings of the SF gel. Improved cell viability, morphology, and extracellular matrix depositions by the LTP-treated SF hydrogel were identified with wound-healing assays and immunofluorescence staining. An irradiated random-pattern skin-flap animal model was established in six-week-old C57/BL6 mice. Full-thickness skin was flapped from the dorsum and SF hydrogel was placed underneath the raised skin flap. Postoperative histological analysis of the irradiated random-pattern skin-flap mice model suggested that LTP-treated SF hydrogel much improved wound regeneration and the inflammatory response compared to the SF hydrogel- and sham-treated groups. These results support that LTP-treated SF hydrogel significantly enhanced irradiated wound healing. Cellular and tissue reactions to released LTP from the SF hydrogel were favorable for the regenerative process of the wound; furthermore, mechanochemical properties of the SF gel were improved by LTP.
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Affiliation(s)
- Hye Ran Lee
- Department of Otolaryngology, School of Medicine, Ajou University, Suwon, Republic of Korea
| | - Hye-Young Lee
- Department of Otolaryngology, School of Medicine, Ajou University, Suwon, Republic of Korea
| | - Jaesung Heo
- Department of Radiation Oncology, School of Medicine, Ajou University, Suwon, Republic of Korea
| | - Jeon Yeob Jang
- Department of Otolaryngology, School of Medicine, Ajou University, Suwon, Republic of Korea
| | - Yoo Seob Shin
- Department of Otolaryngology, School of Medicine, Ajou University, Suwon, Republic of Korea.
| | - Chul-Ho Kim
- Department of Otolaryngology, School of Medicine, Ajou University, Suwon, Republic of Korea
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Jang HJ, Jung EY, Parsons T, Tae HS, Park CS. A Review of Plasma Synthesis Methods for Polymer Films and Nanoparticles under Atmospheric Pressure Conditions. Polymers (Basel) 2021; 13:polym13142267. [PMID: 34301024 PMCID: PMC8309454 DOI: 10.3390/polym13142267] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 07/02/2021] [Accepted: 07/06/2021] [Indexed: 02/06/2023] Open
Abstract
In this paper, we present an overview of recent approaches in the gas/aerosol-through-plasma (GATP) and liquid plasma methods for synthesizing polymer films and nanoparticles (NPs) using an atmospheric-pressure plasma (APP) technique. We hope to aid students and researchers starting out in the polymerization field by compiling the most commonly utilized simple plasma synthesis methods, so that they can readily select a method that best suits their needs. Although APP methods are widely employed for polymer synthesis, and there are many related papers for specific applications, reviews that provide comprehensive coverage of the variations of APP methods for polymer synthesis are rarely reported. We introduce and compile over 50 recent papers on various APP polymerization methods that allow us to discuss the existing challenges and future direction of GATP and solution plasma methods under ambient air conditions for large-area and mass nanoparticle production.
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Affiliation(s)
- Hyo Jun Jang
- School of Electronic and Electrical Engineering, College of IT Engineering, Kyungpook National University, Daegu 41566, Korea; (H.J.J.); (E.Y.J.)
| | - Eun Young Jung
- School of Electronic and Electrical Engineering, College of IT Engineering, Kyungpook National University, Daegu 41566, Korea; (H.J.J.); (E.Y.J.)
| | - Travis Parsons
- GBS (Global Business Services) IT, The Procter & Gamble Company, Cincinnati, OH 45202, USA;
| | - Heung-Sik Tae
- School of Electronic and Electrical Engineering, College of IT Engineering, Kyungpook National University, Daegu 41566, Korea; (H.J.J.); (E.Y.J.)
- School of Electronics Engineering, College of IT Engineering, Kyungpook National University, Daegu 41566, Korea
- Correspondence: (H.-S.T.); (C.-S.P.)
| | - Choon-Sang Park
- Department of Electronics and Computer Engineering, College of Engineering, Kansas State University, Manhattan, KS 66506, USA
- Correspondence: (H.-S.T.); (C.-S.P.)
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Stoican OS. Electrical Supply Circuit for a Cold Plasma Source at Atmospheric Pressure Based on a Voltage Multiplier. Polymers (Basel) 2021; 13:polym13132132. [PMID: 34209575 PMCID: PMC8271450 DOI: 10.3390/polym13132132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 06/23/2021] [Accepted: 06/25/2021] [Indexed: 11/21/2022] Open
Abstract
A cold plasma source operating at atmospheric pressure powered by a voltage multiplier is reported. In addition to its usual high voltage output, there is an intermediate output of lower voltage and higher current capability. A discharge current is drawn from both outputs. The ratio of the current supplied by each output depends on the operating state, namely, before or after the plasma jet formation. The electrical circuit is equivalent to two dc sources connected in parallel, used to initiate and sustain the electrical discharge. The plasma source is aimed to study the effect of cold plasma on the surface of various liquid or solid materials, including polymers.
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Affiliation(s)
- Ovidiu S Stoican
- National Institute for Laser, Plasma and Radiation Physics, 409 Atomistilor Street, P.O. Box MG 36, 077125 Mǎgurele, Romania
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Microwave Discharges in Liquid Hydrocarbons: Physical and Chemical Characterization. Polymers (Basel) 2021; 13:polym13111678. [PMID: 34064034 PMCID: PMC8196685 DOI: 10.3390/polym13111678] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 05/11/2021] [Accepted: 05/17/2021] [Indexed: 01/09/2023] Open
Abstract
Microwave discharges in dielectric liquids are a relatively new area of plasma physics and plasma application. This review cumulates results on microwave discharges in wide classes of liquid hydrocarbons (alkanes, cyclic and aromatic hydrocarbons). Methods of microwave plasma generation, composition of gas products and characteristics of solid carbonaceous products are described. Physical and chemical characteristics of discharge are analyzed on the basis of plasma diagnostics and 0D, 1D and 2D simulation.
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Chokradjaroen C, Niu J, Panomsuwan G, Saito N. Insight on Solution Plasma in Aqueous Solution and Their Application in Modification of Chitin and Chitosan. Int J Mol Sci 2021; 22:4308. [PMID: 33919182 PMCID: PMC8122608 DOI: 10.3390/ijms22094308] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 04/17/2021] [Accepted: 04/17/2021] [Indexed: 01/09/2023] Open
Abstract
Sustainability and environmental concerns have persuaded researchers to explore renewable materials, such as nature-derived polysaccharides, and add value by changing chemical structures with the aim to possess specific properties, like biological properties. Meanwhile, finding methods and strategies that can lower hazardous chemicals, simplify production steps, reduce time consumption, and acquire high-purified products is an important task that requires attention. To break through these issues, electrical discharging in aqueous solutions at atmospheric pressure and room temperature, referred to as the "solution plasma process", has been introduced as a novel process for modification of nature-derived polysaccharides like chitin and chitosan. This review reveals insight into the electrical discharge in aqueous solutions and scientific progress on their application in a modification of chitin and chitosan, including degradation and deacetylation. The influencing parameters in the plasma process are intensively explained in order to provide a guideline for the modification of not only chitin and chitosan but also other nature-derived polysaccharides, aiming to address economic aspects and environmental concerns.
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Affiliation(s)
- Chayanaphat Chokradjaroen
- Department of Chemical Systems Engineering, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan; (C.C.); (J.N.)
| | - Jiangqi Niu
- Department of Chemical Systems Engineering, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan; (C.C.); (J.N.)
| | - Gasidit Panomsuwan
- Department of Materials Engineering, Faculty of Engineering, Kasetsart University, Bangkok 10900, Thailand;
| | - Nagahiro Saito
- Department of Chemical Systems Engineering, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan; (C.C.); (J.N.)
- Conjoint Research Laboratory in Nagoya University, Shinshu University, Nagoya 464-8603, Japan
- Open Innovation Platform with Enterprises, Research Institute and Academia (OPERA), Japan Science and Technology Corporation (JST), Nagoya 464-8603, Japan
- Strategic International Collaborative Research Program (SICORP), Japan Science and Technology Corporation (JST), Nagoya 464-8603, Japan
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Guo H, Li Z, Xiang L, Jiang N, Zhang Y, Wang H, Li J. Efficient removal of antibiotic thiamphenicol by pulsed discharge plasma coupled with complex catalysis using graphene-WO 3-Fe 3O 4 nanocomposites. JOURNAL OF HAZARDOUS MATERIALS 2021; 403:123673. [PMID: 32829229 DOI: 10.1016/j.jhazmat.2020.123673] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 08/02/2020] [Accepted: 08/07/2020] [Indexed: 06/11/2023]
Abstract
Pulsed discharge plasma (PDP) induced complex catalysis for synergetic removal of thiamphenicol (TAP) was investigated using graphene-WO3-Fe3O4 nanocomposites. The prepared samples were characterized systematically in view of the structure and morphology, chemical bonding state, optical property, electrochemical property and magnetic property. Based on characterization and TAP degradation, the catalytic performance followed: graphene-WO3-Fe3O4>graphene-WO3>WO3, and the highest removal efficiency and kinetic constant could reached 99.3% and 0.070 min-1, respectively. With increase of catalyst dosage, the removal efficiency firstly enhanced and then declined. Lower pH value was beneficial for TAP degradation. The prepared graphene-WO3-Fe3O4 owed higher stability and lower dissolution rate of iron ion. The rGO-WO3-Fe3O4 could decompose O3 and H2O2 into more ·OH in PDP system. The degradation intermediates were characterized by fluorescence spectrograph, LC-MS and IC. Based on the detected intermediates and discrete Fourier transform (DFT) analysis, degradation pathway of TAP was proposed. Besides, the toxicity of intermediates was predicted. Finally, catalytic degradation mechanism of TAP by PDP with graphene-WO3-Fe3O4 was summarized.
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Affiliation(s)
- He Guo
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China.
| | - Zhen Li
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
| | - Liangrui Xiang
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
| | - Nan Jiang
- School of Electrical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Ying Zhang
- College of Information Science and Technology, Nanjing Forestry University, Nanjing 210037, China
| | - Huijuan Wang
- School of Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Jie Li
- School of Electrical Engineering, Dalian University of Technology, Dalian 116024, China.
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Guo H, Li Z, Lin S, Li D, Jiang N, Wang H, Han J, Li J. Multi-catalysis induced by pulsed discharge plasma coupled with graphene-Fe 3O 4 nanocomposites for efficient removal of ofloxacin in water: Mechanism, degradation pathway and potential toxicity. CHEMOSPHERE 2021; 265:129089. [PMID: 33261841 DOI: 10.1016/j.chemosphere.2020.129089] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Revised: 11/01/2020] [Accepted: 11/20/2020] [Indexed: 06/12/2023]
Abstract
Herein, degradation of ofloxacin (OFX) by pulsed discharge plasma (PDP) coupled with multi-catalysis using graphene-Fe3O4 nanocomposites was inspected. The graphene-Fe3O4 nanocomposites were prepared by hydrothermal synthesis, and their morphology, specific surface area, chemical bond structure and magnetic property were characterized systematically. Compared with sole Fe3O4, the specific surface area of graphene-Fe3O4 nanocomposites increased from 26.34 m2/g to 125.04 m2/g. The prepared graphene-Fe3O4 nanocomposites had higher paramagnetism and the magnetic strength reached 66.05 emu/g, which was prone to separate from solution. Graphene-Fe3O4 nanocomposites could further accelerate OFX degradation compared to sole Fe3O4. When graphene content was 18 wt%, graphene-Fe3O4 nanocomposites exhibited the highest catalytic activity, and the removal efficiency of OFX enhanced from 65.0% (PDP alone) to 99.9%. 0.23 g/L dosage and acid solution were beneficial for OFX degradation. Higher stability of graphene-Fe3O4 nanocomposites could be maintained although four times use. Graphene-Fe3O4 nanocomposites could catalyze H2O2 and O3 to produce more ·OH. The degradation products of OFX were identified by liquid chromatography mass spectrometry (LC-MS) and ion chromatography (IC). According to the identified products and discrete Fourier transform (DFT), the degradation pathway was inferred. Further toxicity assessment of products manifested that the toxicity of oral rat 50% lethal dose (LD50) and the developmental toxicity of OFX were reduced.
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Affiliation(s)
- He Guo
- College of Biology and the Environment, Nanjing Forestry University, Nanjing, 210037, China.
| | - Zhen Li
- College of Biology and the Environment, Nanjing Forestry University, Nanjing, 210037, China
| | - Siying Lin
- College of Biology and the Environment, Nanjing Forestry University, Nanjing, 210037, China
| | - Dongsheng Li
- College of Biology and the Environment, Nanjing Forestry University, Nanjing, 210037, China
| | - Nan Jiang
- School of Electrical Engineering, Dalian University of Technology, Dalian, 116024, China
| | - Huijuan Wang
- School of Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Jiangang Han
- College of Biology and the Environment, Nanjing Forestry University, Nanjing, 210037, China; Co-Innovation Center for the Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, Jiangsu, 210037, China; National Positioning Observation Station of Hung-tse Lake Wetland Ecosystem in Jiangsu Province, Hongze, Jiangsu, 223100, China.
| | - Jie Li
- School of Electrical Engineering, Dalian University of Technology, Dalian, 116024, China
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40
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Transport of Gaseous Hydrogen Peroxide and Ozone into Bulk Water vs. Electrosprayed Aerosol. WATER 2021. [DOI: 10.3390/w13020182] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Production and transport of reactive species through plasma–liquid interactions play a significant role in multiple applications in biomedicine, environment, and agriculture. Experimental investigations of the transport mechanisms of typical air plasma species: hydrogen peroxide (H2O2) and ozone (O3) into water are presented. Solvation of gaseous H2O2 and O3 from an airflow into water bulk vs. electrosprayed microdroplets was measured, while changing the water flow rate and applied voltage, during different treatment times and gas flow rates. The solvation rate of H2O2 and O3 increased with the treatment time and the gas–liquid interface area. The total surface area of the electrosprayed microdroplets was larger than that of the bulk, but their lifetime was much shorter. We estimated that only microdroplets with diameters below ~40 µm could achieve the saturation by O3 during their lifetime, while the saturation by H2O2 was unreachable due to its depletion from air. In addition to the short-lived flying microdroplets, the longer-lived bottom microdroplets substantially contributed to H2O2 and O3 solvation in water electrospray. This study contributes to a better understanding of the gaseous H2O2 and O3 transport into water and will lead to design optimization of the water spray and plasma-liquid interaction systems.
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41
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Experimental Studies on Physicochemical Parameters of Water Samples before and after Treatment with a Cold Atmospheric Plasma Jet and its Optical Characterization. J CHEM-NY 2021. [DOI: 10.1155/2021/6638939] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Cold plasma-liquid interaction becomes a growing interdisciplinary area of research involving plasma physics, fluid science, and chemistry. Plasma-liquid interaction has gained more interest over the last many years due to its potential applications in different fields. Cold atmospheric plasma jet is an emerging technology for surface drinking water treatment to improve quality and surface modification that is chemical-free and eco-friendly. Cold plasma treatment of water samples results in changes in turbidity, pH, and conductivity and in the formation of reactive oxygen and nitrogen species (RONS). As a result, plasma-activated water has a different chemical composition than water and can serve as an alternative technique for microbial disinfection. CAPJ has been generated by a high voltage 5 kV and a high frequency 19.56 kHz power supply. The discharge has been characterized by an optical method. To characterize the cold atmospheric pressure argon plasma jet, discharge plume temperature, and electron rotational and vibrational temperature have been determined. Cold atmospheric argon plasma jet produced at atmospheric condition contains high energetic electrons, ions, UV radiation, reactive oxygen, and nitrogen species named as cold plasma which has a wide range of applications in the biomedical industry, as well as in water treatment. Nowadays, researches have been carried out on ozonation through plasma jet interaction with surface drinking water. In this paper, we compare the change in physical and chemical parameters of surface water used for drinking purposes. The significant change in the physical parameters such as pH, turbidity, and electrical conductivity was studied. In addition, the significant changes in the concentration and absorbance of nitrate, ferrous, and chromium ions with respect to treatment time were studied. Our results showed that plasma jet interaction with surface drinking water samples can be useful for the improvement of water quality and an indicator for which reactive species play an important role in plasma sterilization.
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42
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Kanno M, Kitao T, Ito T, Terashima K. Synthesis of a metal–organic framework by plasma in liquid to increase reduced metal ions and enhance water stability. RSC Adv 2021; 11:22756-22760. [PMID: 35480462 PMCID: PMC9034360 DOI: 10.1039/d1ra00942g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 06/18/2021] [Indexed: 11/21/2022] Open
Abstract
Synthesis of a metal–organic framework by plasma in liquid was demonstrated with HKUST-1 as an example. HKUST-1 synthesized by this method contains a higher amount of monovalent copper ions than that synthesized by other conventional methods. The enhanced water stability was also confirmed. Plasma in liquid provides a method for the synthesis of HKUST-1 with increased reduced metal ions and high water stability.![]()
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Affiliation(s)
- Moriyuki Kanno
- Department of Advanced Materials Science
- Graduate School of Frontier Sciences
- The University of Tokyo
- Kashiwa
- Japan
| | - Takashi Kitao
- Department of Advanced Materials Science
- Graduate School of Frontier Sciences
- The University of Tokyo
- Kashiwa
- Japan
| | - Tsuyohito Ito
- Department of Advanced Materials Science
- Graduate School of Frontier Sciences
- The University of Tokyo
- Kashiwa
- Japan
| | - Kazuo Terashima
- Department of Advanced Materials Science
- Graduate School of Frontier Sciences
- The University of Tokyo
- Kashiwa
- Japan
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43
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Guo H, Li Z, Zhang Y, Jiang N, Wang H, Li J. Degradation of chloramphenicol by pulsed discharge plasma with heterogeneous Fenton process using Fe3O4 nanocomposites. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.117540] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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44
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Akter M, Yadav DK, Ki SH, Choi EH, Han I. Inactivation of Infectious Bacteria Using Nonthermal Biocompatible Plasma Cabinet Sterilizer. Int J Mol Sci 2020; 21:ijms21218321. [PMID: 33171928 PMCID: PMC7664273 DOI: 10.3390/ijms21218321] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 10/30/2020] [Accepted: 10/30/2020] [Indexed: 11/29/2022] Open
Abstract
Nonthermal, biocompatible plasma (NBP) is a promising unique state of matter that is effective against a wide range of pathogenic microorganisms. This study focused on a sterilization method for bacteria that used the dielectric barrier discharge (DBD) biocompatible plasma cabinet sterilizer as an ozone generator. Reactive oxygen species play a key role in inactivation when air or other oxygen-containing gases are used. Compared with the untreated control, Escherichia coli(E. coli), Staphylococcus aureus (S. aureus), and Salmonella typhimurium (sepsis) were inhibited by approximately 99%, or were nondetectable following plasma treatment. Two kinds of plasma sterilizers containing six- or three-chamber cabinets were evaluated. There was no noticeable difference between the two configurations in the inactivation of microorganisms. Both cabinet configurations were shown to be able to reduce microbes dramatically, i.e., to the nondetectable range. Therefore, our data indicate that the biocompatible plasma cabinet sterilizer may prove to be an appropriate alternative sterilization procedure.
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Affiliation(s)
- Mahmuda Akter
- Department of Plasma Bio-Display, Kwangwoon University, Seoul 01897, Korea;
- Plasma Bioscience Research Center, Applied Plasma Medicine Center, Kwangwoon University, Seoul 01897, Korea;
| | - Dharmendra Kumar Yadav
- Department of Pharmacy, College of Pharmacy, Gachon University of Medicine and Science, Incheon City 21924, Korea;
| | - Se Hoon Ki
- Plasma Bioscience Research Center, Applied Plasma Medicine Center, Kwangwoon University, Seoul 01897, Korea;
- Department of Electronic and Biological Physics, Kwangwoon University, Seoul 01897, Korea
| | - Eun Ha Choi
- Department of Plasma Bio-Display, Kwangwoon University, Seoul 01897, Korea;
- Plasma Bioscience Research Center, Applied Plasma Medicine Center, Kwangwoon University, Seoul 01897, Korea;
- Department of Electronic and Biological Physics, Kwangwoon University, Seoul 01897, Korea
- Correspondence: (E.H.C.); (I.H.)
| | - Ihn Han
- Department of Plasma Bio-Display, Kwangwoon University, Seoul 01897, Korea;
- Plasma Bioscience Research Center, Applied Plasma Medicine Center, Kwangwoon University, Seoul 01897, Korea;
- Correspondence: (E.H.C.); (I.H.)
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45
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Degradation of Acid Orange 7 Azo Dye in Aqueous Solution by a Catalytic-Assisted, Non-Thermal Plasma Process. Catalysts 2020. [DOI: 10.3390/catal10080888] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The aim of this work was the optimization of the performance of the cold plasma technology coupled with a structured catalyst for the discoloration and mineralization of “acid orange 7” (AO7) azo dye. The structured catalyst consists of Fe2O3 immobilized on glass spheres, and it was prepared by the “dip coating” method and characterized by different chemico-physical techniques. The experiments were carried out in a dielectric barrier discharge (DBD) reactor. Thanks to the presence of the catalytic packed material, the complete discoloration and mineralization of the dye was achieved with voltage equal to 12 kV, lower than those generally used with this technology (approximately 20–40 kV). The best result in terms of discoloration and mineralization (80% after only 5 min both for discoloration and mineralization) was obtained with 0.25 wt% of Fe2O3 immobilized on the glass spheres, without formation of reaction by-products, as shown by the HPLC analysis. The optimized catalyst was reused for several reuse cycles without any substantial decrease of performances. Moreover, tests with radical scavengers evidenced that the most responsible oxidizing species for the degradation of AO7 dye was O2•−.
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46
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Jung SC, Lee H, Ki SJ, Kim SJ, Park YK. Rapid decomposition of chloroform by a liquid phase plasma reaction with titanium dioxide and hydrogen peroxide. Catal Today 2020. [DOI: 10.1016/j.cattod.2019.11.021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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47
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Wang T, Wu Y, Li Z, Sha X. Potential impact of active substances in non-thermal discharge plasma process on microbial community structures and enzymatic activities in uncontaminated soil. JOURNAL OF HAZARDOUS MATERIALS 2020; 393:122489. [PMID: 32193134 DOI: 10.1016/j.jhazmat.2020.122489] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 02/17/2020] [Accepted: 03/06/2020] [Indexed: 06/10/2023]
Abstract
Soil microbial community structures and enzymatic activity are important indicators for judging biochemical process intensity and soil quality. Non-thermal discharge plasma (NDP), an advanced oxidation technique, has received great attention in soil remediation. Potential impact of NDP treatment on microbial community structures and enzymatic activities in uncontaminated soil samples was evaluated in this study. The NDP treatment significantly altered soil microbial community structures and enzymatic activity. The exposure of soil samples to NDP decreased the enzymatic activities including glutamic acid enzyme, arylsulphatase, leucine enzyme, acetyl glucosaccharase, glucosaccharase, cellulose, phosphatase, and ligninase. The contents of some soil microbes including Gram-negative bacteria, Fungi, Anaerobes, AM Fungi, Eukaryotes, and Actinomycetes also decreased after NDP treatment, as well as the diversity index and equitability index of the soil microbes. In addition, the total phospholipid fatty acid (PLFA), Fungi PLFA, bacteria PLFA, and Actinomycetes PLFA of the soil microbes were also reduced after treatment. Principal component analysis confirmed these changes. Actinomycetes and Fungi were the most sensitive microbes to the NDP, and Phosphatase activity and Cellulose activity were relatively insensitive to the NDP. The potential impacts could be attributed to chemically active substances and ultraviolet irradiation.
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Affiliation(s)
- Tiecheng Wang
- State Key Laboratory of Soil Erosion and Dryland Farming on Loess Plateau, College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province, 712100, PR China; Key Laboratory of Plant Nutrition and the Agri-Environment in Northwest China, Ministry of Agriculture, Yangling, Shaanxi Province, 712100, PR China
| | - Yang Wu
- Institute of Soil and Water Conservation, Northwest A&F University, Yangling 712100, PR China
| | - Zhicong Li
- Institute of Soil and Water Conservation, Northwest A&F University, Yangling 712100, PR China
| | - Xue Sha
- State Key Laboratory of Soil Erosion and Dryland Farming on Loess Plateau, College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province, 712100, PR China; Institute of Soil and Water Conservation, Northwest A&F University, Yangling 712100, PR China; Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling 712100, PR China.
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48
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Fasano V, Laurita R, Moffa M, Gualandi C, Colombo V, Gherardi M, Zussman E, Vasilyev G, Persano L, Camposeo A, Focarete ML, Pisignano D. Enhanced Electrospinning of Active Organic Fibers by Plasma Treatment on Conjugated Polymer Solutions. ACS APPLIED MATERIALS & INTERFACES 2020; 12:26320-26329. [PMID: 32406678 PMCID: PMC7302505 DOI: 10.1021/acsami.0c02724] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Realizing active, light-emitting fibers made of conjugated polymers by the electrospinning method is generally challenging. Electrospinning of plasma-treated conjugated polymer solutions is here developed for the production of light-emitting microfibers and nanofibers. Active fibers from conjugated polymer solutions rapidly processed by a cold atmospheric argon plasma are electrospun in an effective way, and they show a smoother surface and bead-less morphology, as well as preserved optical properties in terms of absorption, emission, and photoluminescence quantum yield. In addition, the polarization of emitted light and more notably photon waveguiding along the length of individual fibers are remarkably enhanced by electrospinning plasma-treated solutions. These properties come from a synergetic combination of favorable intermolecular coupling in the solutions, increased order of macromolecules on the nanoscale, and resulting fiber morphology. Such findings make the coupling of the electrospinning method and cold atmospheric plasma processing on conjugated polymer solutions a highly promising and possibly general route to generate light-emitting and conductive micro- and nanostructures for organic photonics and electronics.
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Affiliation(s)
- Vito Fasano
- Dipartimento di
Matematica e Fisica “Ennio De Giorgi”, Università del Salento, via Arnesano, I-73100 Lecce, Italy
| | - Romolo Laurita
- Department of Industrial
Engineering (DIN), Università di
Bologna, Viale del Risorgimento
2, 40123 Bologna, Italy
- Advanced Mechanics and Materials-Interdepartmental Center, University of Bologna, Viale del Risorgimento 2, 40123 Bologna, Italy
| | - Maria Moffa
- NEST, Istituto Nanoscienze-CNR and Scuola Normale Superiore, Piazza S. Silvestro 12, I-56127 Pisa, Italy
| | - Chiara Gualandi
- Advanced Mechanics and Materials-Interdepartmental Center, University of Bologna, Viale del Risorgimento 2, 40123 Bologna, Italy
- Chemistry Department “Giacomo Ciamician”
and INSTM UdR of Bologna, University of
Bologna, via Selmi 2, 40126 Bologna, Italy
| | - Vittorio Colombo
- Department of Industrial
Engineering (DIN), Università di
Bologna, Viale del Risorgimento
2, 40123 Bologna, Italy
- Advanced Mechanics and Materials-Interdepartmental Center, University of Bologna, Viale del Risorgimento 2, 40123 Bologna, Italy
| | - Matteo Gherardi
- Department of Industrial
Engineering (DIN), Università di
Bologna, Viale del Risorgimento
2, 40123 Bologna, Italy
- Advanced Mechanics and Materials-Interdepartmental Center, University of Bologna, Viale del Risorgimento 2, 40123 Bologna, Italy
| | - Eyal Zussman
- Department of Mechanical
Engineering, Technion − Israel Institute
of Technology, Haifa 32000, Israel
| | - Gleb Vasilyev
- Department of Mechanical
Engineering, Technion − Israel Institute
of Technology, Haifa 32000, Israel
| | - Luana Persano
- NEST, Istituto Nanoscienze-CNR and Scuola Normale Superiore, Piazza S. Silvestro 12, I-56127 Pisa, Italy
| | - Andrea Camposeo
- NEST, Istituto Nanoscienze-CNR and Scuola Normale Superiore, Piazza S. Silvestro 12, I-56127 Pisa, Italy
| | - Maria Letizia Focarete
- Chemistry Department “Giacomo Ciamician”
and INSTM UdR of Bologna, University of
Bologna, via Selmi 2, 40126 Bologna, Italy
- Health
Sciences and Technologies-Interdepartmental Center for Industrial
Research (HST-ICIR), University of Bologna, Via Tolara di Sopra 41/E, Ozzano Emilia I-40064, Italy
| | - Dario Pisignano
- NEST, Istituto Nanoscienze-CNR and Scuola Normale Superiore, Piazza S. Silvestro 12, I-56127 Pisa, Italy
- Dipartimento di Fisica, Università
di Pisa, Largo B. Pontecorvo
3, I-56127 Pisa, Italy
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Direct Exposure of Dry Enzymes to Atmospheric Pressure Non-Equilibrium Plasmas: The Case of Tyrosinase. MATERIALS 2020; 13:ma13092181. [PMID: 32397486 PMCID: PMC7254212 DOI: 10.3390/ma13092181] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 04/30/2020] [Accepted: 05/06/2020] [Indexed: 02/07/2023]
Abstract
The direct interaction of atmospheric pressure non-equilibrium plasmas with tyrosinase (Tyr) was investigated under typical conditions used in surface processing. Specifically, Tyr dry deposits were exposed to dielectric barrier discharges (DBDs) fed with helium, helium/oxygen, and helium/ethylene mixtures, and effects on enzyme functionality were evaluated. First of all, results show that DBDs have a measurable impact on Tyr only when experiments were carried out using very low enzyme amounts. An appreciable decrease in Tyr activity was observed upon exposure to oxygen-containing DBD. Nevertheless, the combined use of X-ray photoelectron spectroscopy and white-light vertical scanning interferometry revealed that, in this reactive environment, Tyr deposits displayed remarkable etching resistance, reasonably conferred by plasma-induced changes in their surface chemical composition as well as by their coffee-ring structure. Ethylene-containing DBDs were used to coat tyrosinase with a hydrocarbon polymer film, in order to obtain its immobilization. In particular, it was found that Tyr activity can be fully retained by properly adjusting thin film deposition conditions. All these findings enlighten a high stability of dry enzymes in various plasma environments and open new opportunities for the use of atmospheric pressure non-equilibrium plasmas in enzyme immobilization strategies.
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50
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Pho QH, Losic D, Ostrikov K(K, Tran NN, Hessel V. Perspectives on plasma-assisted synthesis of N-doped nanoparticles as nanopesticides for pest control in crops. REACT CHEM ENG 2020. [DOI: 10.1039/d0re00069h] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Green plasma-based technology production of N-doped NPs for a new agri-tech revolution in pest control.
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Affiliation(s)
- Quoc Hue Pho
- School of Chemical Engineering and Advanced Materials
- The University of Adelaide
- Adelaide
- Australia
| | - Dusan Losic
- School of Chemical Engineering and Advanced Materials
- The University of Adelaide
- Adelaide
- Australia
- The ARC Graphene Research Hub
| | - Kostya (Ken) Ostrikov
- School of Chemistry, Physics, and Mechanical Engineering
- Queensland University of Technology
- Brisbane
- Australia
| | - Nam Nghiep Tran
- School of Chemical Engineering and Advanced Materials
- The University of Adelaide
- Adelaide
- Australia
- School of Chemical Engineering
| | - Volker Hessel
- School of Chemical Engineering and Advanced Materials
- The University of Adelaide
- Adelaide
- Australia
- School of Engineering
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