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Park JY, Bae JH, Lee S. Characteristics of Aqueous Chemical Species Generation in Plasma-Facing Liquid Systems Using Helium Jet Plasma. ChemistryOpen 2024; 13:e202300213. [PMID: 38801324 PMCID: PMC11230930 DOI: 10.1002/open.202300213] [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: 12/26/2023] [Revised: 04/16/2024] [Indexed: 05/29/2024] Open
Abstract
Plasma-facing liquids (PFLs) facilitate the storage of reactive O and N species (RONS), including H2O2 and NO2 -, which remain in the PFL after plasma treatment, and they can continuously influence the target immersed in the liquid. However, their behaviors and levels of generation and extinction depend strongly on the plasma characteristics and liquid condition. Therefore, understanding the effects of the liquid type on the plasma discharge characteristics and the RONS generated via plasma discharge is necessary. We compared the RONS generation and storage trends of deionized H2O and a high-conductivity PFL, RPMI 1640, which is a well-known cell culture medium commonly used to culture mammalian cells. RPMI 1640 acted as an electrode and enhanced the plasma discharge power by supplying abundant radicals and RONS. The production of gaseous hydroxyl radicals and NO markedly increased, which facilitated H2O2 and NO2 - production in the PFL for the first 200 s, and then the increase in the RONS concentration stagnated. With respect to storage, as the components within RMPI 1640 exhibited high reaction constants for their reactions with H2O2, H2O2 elimination was completed in <30 min. Unlike H2O2, the concentration of NO2 - in the PFL was unchanged.
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Affiliation(s)
- Joo Young Park
- Nano-Bio Convergence DivisionKorea Institute of Materials Science797 Changwondae-roChangwon51508Republic of Korea
| | - Jin Hee Bae
- Nano-Bio Convergence DivisionKorea Institute of Materials Science797 Changwondae-roChangwon51508Republic of Korea
- Present address: Department of Nuclear and Quantum EngineeringKorea Advanced Institute of Science and Technology291 Daehak-ro, Yuseong-guDaejeon34141Republic of Korea
| | - Seunghun Lee
- Nano-Bio Convergence DivisionKorea Institute of Materials Science797 Changwondae-roChangwon51508Republic of Korea
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2
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Chew NSL, Ooi CW, Yeo LY, Tan MK. Influence of MHz-order acoustic waves on bacterial suspensions. ULTRASONICS 2024; 138:107234. [PMID: 38171227 DOI: 10.1016/j.ultras.2023.107234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 11/22/2023] [Accepted: 12/24/2023] [Indexed: 01/05/2024]
Abstract
The development of alternative techniques to efficiently inactivate bacterial suspensions is crucial to prevent transmission of waterborne illness, particularly when commonly used techniques such as heating, filtration, chlorination, or ultraviolet treatment are not practical or feasible. We examine the effect of MHz-order acoustic wave irradiation in the form of surface acoustic waves (SAWs) on Gram-positive (Escherichia coli) and Gram-negative (Brevibacillus borstelensis and Staphylococcus aureus) bacteria suspended in water droplets. A significant increase in the relative bacterial load reduction of colony-forming units (up to 74%) can be achieved by either increasing (1) the excitation power, or, (2) the acoustic treatment duration, which we attributed to the effect of the acoustic radiation force exerted on the bacteria. Consequently, by increasing the maximum pressure amplitude via a hybrid modulation scheme involving a combination of amplitude and pulse-width modulation, we observe that the bacterial inactivation efficiency can be further increased by approximately 14%. By combining this scalable acoustic-based bacterial inactivation platform with plasma-activated water, a 100% reduction in E. coli is observed in less than 10 mins, therefore demonstrating the potential of the synergistic effects of MHz-order acoustic irradiation and plasma-activated water as an efficient strategy for water decontamination.
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Affiliation(s)
- Nicholas S L Chew
- Department of Mechanical Engineering, School of Engineering, Monash University Malaysia, 47500 Bandar Sunway, Selangor, Malaysia
| | - Chien W Ooi
- Department of Chemical Engineering, School of Engineering, Monash University Malaysia, 47500 Bandar Sunway, Selangor, Malaysia
| | - Leslie Y Yeo
- Micro/Nanophysics Research Laboratory, RMIT University, Melbourne, VIC 3001, Australia
| | - Ming K Tan
- Department of Mechanical Engineering, School of Engineering, Monash University Malaysia, 47500 Bandar Sunway, Selangor, Malaysia.
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3
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Kim HJ, Bae JH, Lee S, Kim J, Jung S, Jo C, Lee JY, Seo JH, Park S. Structural and Functional Changes in Soybean Protein via Remote Plasma Treatments. Molecules 2023; 28:molecules28093882. [PMID: 37175292 PMCID: PMC10179772 DOI: 10.3390/molecules28093882] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 04/17/2023] [Accepted: 05/03/2023] [Indexed: 05/15/2023] Open
Abstract
To the best of our knowledge, few studies have utilized cold plasma to improve soybean protein extraction yield and the functional properties of soybean protein. In this study, we aimed to assess the benefits of remote plasma treatments on soybean with respect to the utilization of soybean protein. This study involved two different sample forms (whole and crushed beans), two different plasma chemistry modes (ozone and nitrogen oxides [NOx = NO + NO2]), and a novel pressure-swing reactor. Crushed soybeans were significantly affected by NOx-mode plasma treatment. Crushed soybeans treated with NOx-mode plasma had the best outcomes, wherein the protein extraction yield increased from 31.64% in the control to 37.90% after plasma treatment. The water binding capacity (205.50%) and oil absorption capacity (267.67%) of plasma-treated soybeans increased to 190.88% and 246.23 % of the control, respectively. The emulsifying activity and emulsion stability slightly increased compared to those of the control. The secondary structure and surface hydrophobicity were altered. The remote plasma treatment of crushed soybeans increased soybean protein extraction yield compared to plasma-treated whole beans as well as untreated beans and altered the structural and physicochemical properties of soybean proteins.
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Affiliation(s)
- Hyun-Joo Kim
- Department of Central Area Crop Science, National Institute of Crop Science, Rural Development Administration, Suwon 16613, Republic of Korea
| | - Jin Hee Bae
- Department of Nuclear and Quantum Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Seonmin Lee
- Division of Animal and Dairy Science, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Jinwoo Kim
- Department of Nuclear and Quantum Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Samooel Jung
- Division of Animal and Dairy Science, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Cheorun Jo
- Department of Agricultural Biotechnology, Research Institute of Agriculture and Life Science and Technology, Seoul National University, Seoul 08826, Republic of Korea
| | - Jin Young Lee
- Department of Central Area Crop Science, National Institute of Crop Science, Rural Development Administration, Suwon 16613, Republic of Korea
| | - Jung Hyun Seo
- Department of Southern Area Crop Science, National Institute of Crop Science, Rural Development Administration, Miryang 50424, Republic of Korea
| | - Sanghoo Park
- Department of Nuclear and Quantum Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
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4
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Han N, Kim J, Bae JH, Kim M, Lee JY, Lee YY, Kang MS, Han D, Park S, Kim HJ. Effect of Atmospheric-Pressure Plasma on Functional Compounds and Physiological Activities in Peanut Shells. Antioxidants (Basel) 2022; 11:antiox11112214. [PMID: 36358586 PMCID: PMC9686754 DOI: 10.3390/antiox11112214] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Revised: 11/05/2022] [Accepted: 11/07/2022] [Indexed: 11/11/2022] Open
Abstract
Peanut (Arachis hypogaea L.) shell, an abundant by-product of peanut production, contains a complex combination of organic compounds, including flavonoids. Changes in the total phenolic content, flavonoid content, antioxidant capacities, and skin aging-related enzyme (tyrosinase, elastase, and collagenase)-inhibitory activities of peanut shell were investigated after treatment in pressure swing reactors under controlled gas conditions using surface dielectric barrier discharge with different plasma (NOx and O3) and temperature (25 and 150 °C) treatments. Plasma treatment under ozone-rich conditions at 150 °C significantly affected the total phenolic (270.70 mg gallic acid equivalent (GAE)/g) and flavonoid (120.02 mg catechin equivalent (CE)/g) contents of peanut shell compared with the control (253.94 and 117.74 mg CE/g, respectively) (p < 0.05). In addition, with the same treatment, an increase in functional compound content clearly enhanced the antioxidant activities of components in peanut shell extracts. However, the NOx-rich treatment was significantly less effective than the O3 treatment (p < 0.05) in terms of the total phenolic content, flavonoid content, and antioxidant activities. Similarly, peanut shells treated in the reactor under O3-rich plasma conditions at 150 ℃ had higher tyrosinase, elastase, and collagenase inhibition rates (55.72%, 85.69%, and 86.43%, respectively) compared to the control (35.81%, 80.78%, and 83.53%, respectively). Our findings revealed that a reactor operated with O3-rich plasma-activated gas at 150 °C was better-suited for producing functional industrial materials from the by-products of peanuts.
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Affiliation(s)
- Narae Han
- Department of Central Area Crop Science, National Institute of Crop Science, Rural Development Administration, Suwon 16429, Korea
| | - Jinwoo Kim
- Department of Nuclear and Quantum Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
| | - Jin Hee Bae
- Department of Nuclear and Quantum Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
| | - Mihyang Kim
- Department of Central Area Crop Science, National Institute of Crop Science, Rural Development Administration, Suwon 16429, Korea
| | - Jin Young Lee
- Department of Central Area Crop Science, National Institute of Crop Science, Rural Development Administration, Suwon 16429, Korea
| | - Yu-Young Lee
- Department of Central Area Crop Science, National Institute of Crop Science, Rural Development Administration, Suwon 16429, Korea
| | - Moon Seok Kang
- Department of Central Area Crop Science, National Institute of Crop Science, Rural Development Administration, Suwon 16429, Korea
| | - Duksun Han
- Institute of Plasma Technology, Korea Institute of Fusion Energy (KFE), Gunsan 54004, Korea
| | - Sanghoo Park
- Department of Nuclear and Quantum Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
- Correspondence: (S.P.); (H.-J.K.)
| | - Hyun-Joo Kim
- Department of Central Area Crop Science, National Institute of Crop Science, Rural Development Administration, Suwon 16429, Korea
- Correspondence: (S.P.); (H.-J.K.)
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Sawangrat C, Phimolsiripol Y, Leksakul K, Thanapornpoonpong SN, Sojithamporn P, Lavilla M, Castagnini JM, Barba FJ, Boonyawan D. Application of Pinhole Plasma Jet Activated Water against Escherichia coli, Colletotrichum gloeosporioides, and Decontamination of Pesticide Residues on Chili ( Capsicum annuum L.). Foods 2022; 11:foods11182859. [PMID: 36140988 PMCID: PMC9498241 DOI: 10.3390/foods11182859] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Revised: 09/08/2022] [Accepted: 09/09/2022] [Indexed: 12/04/2022] Open
Abstract
Plasma activated water (PAW) generated from pinhole plasma jet using gas mixtures of argon (Ar) and 2% oxygen (O2) was evaluated for pesticide degradation and microorganism decontamination (i.e., Escherichia coli and Colletotrichum gloeosporioides) in chili (Capsicum annuum L.). A flow rate of 10 L/min produced the highest concentration of hydrogen peroxide (H2O2) at 369 mg/L. Results showed that PAW treatment for 30 min and 60 min effectively degrades carbendazim and chlorpyrifos by about 57% and 54% in solution, respectively. In chili, carbendazim and chlorpyrifos were also decreased, to a major extent, by 80% and 65% after PAW treatment for 30 min and 60 min, respectively. E. coli populations were reduced by 1.18 Log CFU/mL and 2.8 Log CFU/g with PAW treatment for 60 min in suspension and chili, respectively. Moreover, 100% of inhibition of fungal spore germination was achieved with PAW treatment. Additionally, PAW treatment demonstrated significantly higher efficiency (p < 0.05) in controlling Anthracnose in chili by about 83% compared to other treatments.
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Affiliation(s)
- Choncharoen Sawangrat
- Department of Industrial Engineering, Faculty of Engineering, Chiang Mai University, Chiang Mai 50200, Thailand
- Agriculture and Bio Plasma Technology Center (ABPlas), Thai—Korean Research Collaboration Center (TKRCC), Science and Technology Park, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Yuthana Phimolsiripol
- Agriculture and Bio Plasma Technology Center (ABPlas), Thai—Korean Research Collaboration Center (TKRCC), Science and Technology Park, Chiang Mai University, Chiang Mai 50200, Thailand
- Faculty of Agro-Industry, Chiang Mai University, Chiang Mai 50100, Thailand
- Department of Preventive Medicine and Public Health, Food Science, Toxicology and Forensic Medicine, Faculty of Pharmacy, University of Valencia, 46100 Valencia, Spain
- Correspondence: (Y.P.); (F.J.B.); Tel.: +665-394-8236 (Y.P.); +34-963-544-972 (F.J.B.); Fax: +665-394-8230 (Y.P.)
| | - Komgrit Leksakul
- Department of Industrial Engineering, Faculty of Engineering, Chiang Mai University, Chiang Mai 50200, Thailand
- Agriculture and Bio Plasma Technology Center (ABPlas), Thai—Korean Research Collaboration Center (TKRCC), Science and Technology Park, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Sa-nguansak Thanapornpoonpong
- Agriculture and Bio Plasma Technology Center (ABPlas), Thai—Korean Research Collaboration Center (TKRCC), Science and Technology Park, Chiang Mai University, Chiang Mai 50200, Thailand
- Department of Plant and Soil Sciences, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Phanumas Sojithamporn
- Department of Industrial Engineering, Faculty of Engineering, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Maria Lavilla
- AZTI, Food Research, Basque Research and Technology Alliance (BRTA), 48160 Derio, Spain
| | - Juan Manuel Castagnini
- Department of Preventive Medicine and Public Health, Food Science, Toxicology and Forensic Medicine, Faculty of Pharmacy, University of Valencia, 46100 Valencia, Spain
| | - Francisco J. Barba
- Department of Preventive Medicine and Public Health, Food Science, Toxicology and Forensic Medicine, Faculty of Pharmacy, University of Valencia, 46100 Valencia, Spain
- Correspondence: (Y.P.); (F.J.B.); Tel.: +665-394-8236 (Y.P.); +34-963-544-972 (F.J.B.); Fax: +665-394-8230 (Y.P.)
| | - Dheerawan Boonyawan
- Agriculture and Bio Plasma Technology Center (ABPlas), Thai—Korean Research Collaboration Center (TKRCC), Science and Technology Park, Chiang Mai University, Chiang Mai 50200, Thailand
- Department of Physics and Materials Science, Chiang Mai University, Chiang Mai 50200, Thailand
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6
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Xu H, Fang C, Shao C, Li L, Huang Q. Study of the synergistic effect of singlet oxygen with other plasma-generated ROS in fungi inactivation during water disinfection. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 838:156576. [PMID: 35688233 DOI: 10.1016/j.scitotenv.2022.156576] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 05/22/2022] [Accepted: 06/05/2022] [Indexed: 06/15/2023]
Abstract
Cold atmospheric plasma (CAP) possesses the ability of high-efficiency disinfection. It is reported that mixtures of reactive oxygen species (ROS) including ·OH, 1O2, O2- and H2O2 generated from CAP have better antimicrobial ability than mimicked solution of mixture of single ROS type, but the reason is not clear. In this study, CAP was applied to treat yeasts in water in order to investigate the fungal inactivation efficiency and mechanism. The results showed that plasma treatment for 5 min could result in >2-log reduction of yeast cells, and application of varied ROS scavengers could significantly increase the yeast survival rate, indicating that ·OH and 1O2 played the pivotal role in yeast inactivation. Moreover, the synergistic effect of 1O2 with other plasma-generated ROS was revealed. 1O2 could diffuse into cells and induce the depolarization of mitochondrial membrane potential (MMP), and different levels of MMP depolarization determined different cell death modes. Mild damage of mitochondria during short-term plasma treatment could lead to apoptosis. For long-term plasma treatment, the cell membrane could be severely damaged by the plasma-generated ·OH, so a large amount of 1O2 could induce more depolarization of MMP, leading to increase of intracellular O2- and Fe2+ which subsequently caused cell inactivation. 1O2 could also induce protein aggregation and increase of RIP1/RIP3 necrosome, leading to necroptosis. With participation of 1O2, endogenous ·OH could also be generated via Fenton and Haber-Weiss reactions during plasma treatment, which potentiated necroptosis. Adding l-His could mitigate membrane damage, inhibit the drop of MMP and the formation of necrosome, and thus prevent the happening of necroptosis. These findings may deepen the understanding of plasma sterilization mechanisms and provide guidance for microbial killing in the environment.
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Affiliation(s)
- Hangbo Xu
- CAS Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Institute of Intelligent Agriculture, Institute of Intelligent Machines, Hefei Institutes of Physical Science, Chinese Academy of Sciences (CAS), Hefei 230031, China
| | - Cao Fang
- CAS Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Institute of Intelligent Agriculture, Institute of Intelligent Machines, Hefei Institutes of Physical Science, Chinese Academy of Sciences (CAS), Hefei 230031, China; Science Island Branch of Graduate School, University of Science and Technology of China, Hefei 230026, China
| | - Changsheng Shao
- CAS Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Institute of Intelligent Agriculture, Institute of Intelligent Machines, Hefei Institutes of Physical Science, Chinese Academy of Sciences (CAS), Hefei 230031, China; Science Island Branch of Graduate School, University of Science and Technology of China, Hefei 230026, China
| | - Lamei Li
- CAS Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Institute of Intelligent Agriculture, Institute of Intelligent Machines, Hefei Institutes of Physical Science, Chinese Academy of Sciences (CAS), Hefei 230031, China; Science Island Branch of Graduate School, University of Science and Technology of China, Hefei 230026, China
| | - Qing Huang
- CAS Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Institute of Intelligent Agriculture, Institute of Intelligent Machines, Hefei Institutes of Physical Science, Chinese Academy of Sciences (CAS), Hefei 230031, China.
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Synergistic Action of Reactive Plasma Particles and UV Radiation to Inactivate Staphylococcus Aureus. COATINGS 2022. [DOI: 10.3390/coatings12081105] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The direct application of low-pressure plasma for the decontamination of microorganisms was examined herein. The inactivation efficiency was studied on a Gram-positive bacterium (Staphylococcus aureus) using a plasma process by means of synergistic action of reactive plasma particles and UV radiation. N2 was added to an argon/oxygen plasma mixture in order to improve the effectiveness of S. aureus inactivation. It was found that the decontamination mechanism is based on both the chemical sputtering effect due to the plasma particles and the UV emission originating from the NOγ system from NO radicals in the wavelength range 200–300 nm. The best plasma bactericidal activity was found for an N2 percentage of roughly 10–12%. A count reduction of more than 5 log cycles in a few minutes of S. aureus proves the potentiality of an industrial-grade plasma reactor as a decontamination agent.
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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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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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10
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Gao Y, Francis K, Zhang X. Review on formation of cold plasma activated water (PAW) and the applications in food and agriculture. Food Res Int 2022; 157:111246. [DOI: 10.1016/j.foodres.2022.111246] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 04/08/2022] [Accepted: 04/09/2022] [Indexed: 12/28/2022]
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11
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Asimakopoulou E, Εkonomou SΙ, Papakonstantinou P, Doran O, Stratakos AC. Inhibition of corrosion causing Pseudomonas aeruginosa using plasma-activated water. J Appl Microbiol 2021; 132:2781-2794. [PMID: 34846774 DOI: 10.1111/jam.15391] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Revised: 11/24/2021] [Accepted: 11/28/2021] [Indexed: 12/28/2022]
Abstract
AIMS The cost of Microbiologically Influenced Corrosion (MIC) significantly affects a wide range of sectors. This study aims to assess the efficiency of a novel technology based on the use of plasma-activated water (PAW) in inhibiting corrosion caused by bacteria. METHODS AND RESULTS This study evaluated the effectiveness of PAW, produced by a plasma bubble reactor, in reducing corrosion causing Pseudomonas aeruginosa planktonic cells in tap water and biofilms were grown onto stainless steel (SS) coupons. Planktonic cells and biofilms were treated with PAW at different discharge frequencies (500-1500 Hz) and exposure times (0-20 min). P. aeruginosa cells in tap water were significantly reduced after treatment, with higher exposure times and discharge frequencies achieving higher reductions. Also, PAW treatment led to a gradual reduction for young and mature biofilms, achieving >4-Log reductions after 20 min. Results were also used to develop two predictive inactivation models. CONCLUSIONS This work presents evidence that PAW can be used to inactivate both planktonic cells and biofilms of P. aeruginosa. Experimental and theoretical results also demonstrate that reduction is dependent on discharge frequency and exposure time. SIGNIFICANCE AND IMPACT OF THE STUDY This work demonstrates the potential of using PAW as means to control MIC.
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Affiliation(s)
| | - Sotiriοs Ι Εkonomou
- Faculty of Health and Applied Sciences (HAS), Centre for Research in Biosciences, University of the West of England, Bristol, UK
| | | | - Olena Doran
- Faculty of Health and Applied Sciences (HAS), University of the West of England, Coldharbour Ln, Bristol, UK
| | - Alexandros Ch Stratakos
- Centre for Research in Biosciences, Faculty of Health and Applied Sciences (HAS), University of the West of England, Bristol, UK
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12
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Kim J, Park S, Choe W. Surface plasma with an inkjet-printed patterned electrode for low-temperature applications. Sci Rep 2021; 11:12206. [PMID: 34108606 PMCID: PMC8190151 DOI: 10.1038/s41598-021-91720-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 05/25/2021] [Indexed: 11/09/2022] Open
Abstract
The global health crisis caused by the recent pandemic has led to increasing social demand for ‘new normal’ sanitizing and disinfecting facilities to fit our ‘new normal’ lives. Here, we introduce an inkjet-printed, thin-film plasma source applicable to dry disinfection processes. In contrast to conventional plasma reactors, the merits of plasma produced on a film include disposability, cost-effectiveness, and applicability to high-dimensional objects such as the human body. The developed flexible plasma film can be applied to a wide variety of shapes via origami—remaining plasma stable even when bent. However, electrode degradation has been a practical issue in the long-term operation of inkjet-printed plasma sources, which is troublesome from application perspectives. We focus on making the inkjet-printed electrode more plasma stress-resistant, thereby increasing its lifespan from a few minutes to two hours of continuous operation with optimal inkjet printing and passivation, thus increasing the practicality of the source. Considering the fact that ozone and nitrogen oxides are selectively produced by plasma, we implement a disposable pouch-type plasma source and examine its usefulness in extending the shelf life of food.
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Affiliation(s)
- Jinwoo Kim
- Department of Physics, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Sanghoo Park
- Institute of Plasma Technology, Korea Institute of Fusion Energy (KFE), 37 Dongjangsan-ro, Gunsan, Jeollabuk-do, 54004, Republic of Korea
| | - Wonho Choe
- Department of Physics, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea. .,Department of Nuclear and Quantum Engineering, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea.
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13
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Song JS, Jung S, Jee S, Yoon JW, Byeon YS, Park S, Kim SB. Growth and bioactive phytochemicals of Panax ginseng sprouts grown in an aeroponic system using plasma-treated water as the nitrogen source. Sci Rep 2021; 11:2924. [PMID: 33536557 PMCID: PMC7859182 DOI: 10.1038/s41598-021-82487-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Accepted: 01/20/2021] [Indexed: 12/21/2022] Open
Abstract
Ginseng (Panax ginseng Meyer) sprouts are grown to whole plants in 20 to 25 days in a soil-less cultivation system and then used as a medicinal vegetable. As a nitrogen (N) source, plasma-treated water (PTW) has been used to enhance the seed germination and seedling growth of many crops but has not been investigated for its effects on ginseng sprouts. This study established an in-situ system for N-containing water production using plasma technology and evaluated the effects of the PTW on ginseng growth and its bioactive phytochemicals compared with those of an untreated control. The PTW became weakly acidic 30 min after the air discharge at the electrodes because of the formation of nitrate (NO3‒) and nitrite (NO2‒) in the water. The NO3‒ and NO2‒ in the PTW, together with potassium ions (K+), enhanced the shoot biomass of the ginseng sprout by 26.5% compared to the untreated control. The ginseng sprout grown in the PTW had accumulated more free amino acids and ginsenosides in the sprout at 25 days after planting. Therefore, PTW can be used as a liquid N fertilizer for P. ginseng growth and phytochemical accumulation during sprouting under aeroponic conditions.
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Affiliation(s)
- Jong-Seok Song
- Institute of Plasma Technology, Korea Institute of Fusion Energy, Gunsan, 54004, Republic of Korea.
| | - Sunkyung Jung
- Institute of Plasma Technology, Korea Institute of Fusion Energy, Gunsan, 54004, Republic of Korea
| | - Sunghoon Jee
- Institute of Plasma Technology, Korea Institute of Fusion Energy, Gunsan, 54004, Republic of Korea
| | - Jung Woo Yoon
- Institute of Plasma Technology, Korea Institute of Fusion Energy, Gunsan, 54004, Republic of Korea
| | - Yong Seong Byeon
- Institute of Plasma Technology, Korea Institute of Fusion Energy, Gunsan, 54004, Republic of Korea
| | - Seungil Park
- Institute of Plasma Technology, Korea Institute of Fusion Energy, Gunsan, 54004, Republic of Korea
| | - Seong Bong Kim
- Institute of Plasma Technology, Korea Institute of Fusion Energy, Gunsan, 54004, Republic of Korea
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14
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Mai-Prochnow A, Zhou R, Zhang T, Ostrikov K(K, Mugunthan S, Rice SA, Cullen PJ. Interactions of plasma-activated water with biofilms: inactivation, dispersal effects and mechanisms of action. NPJ Biofilms Microbiomes 2021; 7:11. [PMID: 33504802 PMCID: PMC7841176 DOI: 10.1038/s41522-020-00180-6] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 12/11/2020] [Indexed: 01/30/2023] Open
Abstract
Biofilms have several characteristics that ensure their survival in a range of adverse environmental conditions, including high cell numbers, close cell proximity to allow easy genetic exchange (e.g., for resistance genes), cell communication and protection through the production of an exopolysaccharide matrix. Together, these characteristics make it difficult to kill undesirable biofilms, despite the many studies aimed at improving the removal of biofilms. An elimination method that is safe, easy to deliver in physically complex environments and not prone to microbial resistance is highly desired. Cold atmospheric plasma, a lightning-like state generated from air or other gases with a high voltage can be used to make plasma-activated water (PAW) that contains many active species and radicals that have antimicrobial activity. Recent studies have shown the potential for PAW to be used for biofilm elimination without causing the bacteria to develop significant resistance. However, the precise mode of action is still the subject of debate. This review discusses the formation of PAW generated species and their impacts on biofilms. A focus is placed on the diffusion of reactive species into biofilms, the formation of gradients and the resulting interaction with the biofilm matrix and specific biofilm components. Such an understanding will provide significant benefits for tackling the ubiquitous problem of biofilm contamination in food, water and medical areas.
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Affiliation(s)
- Anne Mai-Prochnow
- grid.1013.30000 0004 1936 834XSchool of Chemical and Biomolecular Engineering, The University of Sydney, Darlington, NSW 2006 Australia
| | - Renwu Zhou
- grid.1013.30000 0004 1936 834XSchool of Chemical and Biomolecular Engineering, The University of Sydney, Darlington, NSW 2006 Australia
| | - Tianqi Zhang
- grid.1013.30000 0004 1936 834XSchool of Chemical and Biomolecular Engineering, The University of Sydney, Darlington, NSW 2006 Australia
| | - Kostya (Ken) Ostrikov
- grid.1024.70000000089150953School of Chemistry and Physics, Queensland University of Technology, Brisbane, QLD 4000 Australia
| | - Sudarsan Mugunthan
- grid.59025.3b0000 0001 2224 0361The Singapore Centre for Environmental Life Sciences Engineering, Nanyang Technological University, Singapore, 639798 Singapore
| | - Scott A. Rice
- grid.59025.3b0000 0001 2224 0361The Singapore Centre for Environmental Life Sciences Engineering, Nanyang Technological University, Singapore, 639798 Singapore ,grid.59025.3b0000 0001 2224 0361The School of Biological Sciences, Nanyang Technological University, Singapore, 639798 Singapore ,grid.117476.20000 0004 1936 7611The ithree Institute, The University of Technology Sydney, Sydney, NSW 2007 Australia
| | - Patrick J. Cullen
- grid.1013.30000 0004 1936 834XSchool of Chemical and Biomolecular Engineering, The University of Sydney, Darlington, NSW 2006 Australia
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15
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Xiang Q, Fan L, Li Y, Dong S, Li K, Bai Y. A review on recent advances in plasma-activated water for food safety: current applications and future trends. Crit Rev Food Sci Nutr 2020; 62:2250-2268. [PMID: 33261517 DOI: 10.1080/10408398.2020.1852173] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Plasma-activated water (PAW), the water or solutions treated with atmospheric cold plasma, is an eco-friendly technique with minimal changes in food products, making it a befitting alternative to traditional disinfection methods. Due to its potential microbicidal properties, PAW has been receiving increasing attention for applications in the food, agricultural, and biomedical fields. In this article, we aimed at presenting an overview of recent studies on the generation methods, physicochemical properties, and antimicrobial activity of PAW, as well as its application in the food industry. Specific areas were well discussed including microbial decontamination of food products, reduction of pesticide residues, meat curing, sprouts production, and disinfection of food contact materials. In addition, the factors influencing PAW efficiency were also well illustrated in detail, such as discharge parameters, types and amounts of microorganisms, characteristics of the liquid solution and food products, and treatment time. Moreover, the strategies to improve the efficacy of PAW were also presented in combination with other technologies. Furthermore, the salient drawbacks of this technology were discussed and the important areas for future research were also highlighted. Overall, the present review provides important insights for the application of PAW in the food industry.
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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, Zheng, PR China
| | - Liumin Fan
- College of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou, PR China.,Henan Key Laboratory of Cold Chain Food Quality and Safety Control, Zheng, PR China
| | - Yunfei 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, Zheng, 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, Zheng, 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, Zheng, 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, Zheng, PR China
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16
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Smolková B, Frtús A, Uzhytchak M, Lunova M, Kubinová Š, Dejneka A, Lunov O. Critical Analysis of Non-Thermal Plasma-Driven Modulation of Immune Cells from Clinical Perspective. Int J Mol Sci 2020; 21:ijms21176226. [PMID: 32872159 PMCID: PMC7503900 DOI: 10.3390/ijms21176226] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 07/30/2020] [Accepted: 08/26/2020] [Indexed: 02/07/2023] Open
Abstract
The emerged field of non-thermal plasma (NTP) shows great potential in the alteration of cell redox status, which can be utilized as a promising therapeutic implication. In recent years, the NTP field considerably progresses in the modulation of immune cell function leading to promising in vivo results. In fact, understanding the underlying cellular mechanisms triggered by NTP remains incomplete. In order to boost the field closer to real-life clinical applications, there is a need for a critical overview of the current state-of-the-art. In this review, we conduct a critical analysis of the NTP-triggered modulation of immune cells. Importantly, we analyze pitfalls in the field and identify persisting challenges. We show that the identification of misconceptions opens a door to the development of a research strategy to overcome these limitations. Finally, we propose the idea that solving problems highlighted in this review will accelerate the clinical translation of NTP-based treatments.
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Affiliation(s)
- Barbora Smolková
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, 18221 Prague, Czech Republic; (B.S.); (A.F.); (M.U.); (M.L.); (Š.K.); (A.D.)
| | - Adam Frtús
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, 18221 Prague, Czech Republic; (B.S.); (A.F.); (M.U.); (M.L.); (Š.K.); (A.D.)
| | - Mariia Uzhytchak
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, 18221 Prague, Czech Republic; (B.S.); (A.F.); (M.U.); (M.L.); (Š.K.); (A.D.)
| | - Mariia Lunova
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, 18221 Prague, Czech Republic; (B.S.); (A.F.); (M.U.); (M.L.); (Š.K.); (A.D.)
- Institute for Clinical & Experimental Medicine (IKEM), 14021 Prague, Czech Republic
| | - Šárka Kubinová
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, 18221 Prague, Czech Republic; (B.S.); (A.F.); (M.U.); (M.L.); (Š.K.); (A.D.)
- Department of Biomaterials and Biophysical Methods, Institute of Experimental Medicine of the Czech Academy of Sciences, 14220 Prague, Czech Republic
| | - Alexandr Dejneka
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, 18221 Prague, Czech Republic; (B.S.); (A.F.); (M.U.); (M.L.); (Š.K.); (A.D.)
| | - Oleg Lunov
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, 18221 Prague, Czech Republic; (B.S.); (A.F.); (M.U.); (M.L.); (Š.K.); (A.D.)
- Correspondence: ; Tel.: +420-2660-52131
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17
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Zeng Y, Komasa S, Nishida H, Agariguchi A, Sekino T, Okazaki J. Enhanced Osseointegration and Bio-Decontamination of Nanostructured Titanium Based on Non-Thermal Atmospheric Pressure Plasma. Int J Mol Sci 2020; 21:ijms21103533. [PMID: 32429471 PMCID: PMC7278937 DOI: 10.3390/ijms21103533] [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: 04/09/2020] [Revised: 05/07/2020] [Accepted: 05/13/2020] [Indexed: 12/12/2022] Open
Abstract
Alkali-treated titanate layer with nanonetwork structures (TNS) is a promising surface for improving osseointegration capacity in implants. Nevertheless, there is a risk of device failure as a result of insufficient resistance to biofilm contamination. This study tested whether treatment using a handheld non-thermal plasma device could efficiently eliminate biofilm contamination without destroying the surface nanostructure while re-establishing a surface that promoted new bone generation. TNS specimens were treated by a piezoelectric direct discharge (PDD) plasma generator. The effect of decontamination was performed utilizing Staphylococcus aureus. The evaluation of initial cell attachment with adhesion images, alkaline phosphatase activity, extracellular matrix mineralization, and expression of genes related to osteogenesis was performed using rat bone marrow mesenchymal stem cells, and the bone response were evaluated in vivo using a rat femur model. Nanotopography and surface roughness did not significantly differ before and after plasma treatments. Cell and bone formation activity were improved by TNS plasma treatment. Furthermore, plasma treatment effectively eliminated biofilm contamination from the surface. These results suggested that this plasma treatment may be a promising approach for the treatment of nanomaterials immediately before implantation and a therapeutic strategy for peri-implantitis.
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Affiliation(s)
- Yuhao Zeng
- Department of Removable Prosthodontics and Occlusion, Osaka Dental University, 8-1, Kuzuhahanazono-cho, Hirakata-shi, Osaka 573-1121, Japan
| | - Satoshi Komasa
- Department of Removable Prosthodontics and Occlusion, Osaka Dental University, 8-1, Kuzuhahanazono-cho, Hirakata-shi, Osaka 573-1121, Japan
| | - Hisataka Nishida
- The Institute of Scientific and Industrial Research, Osaka University, Suita, Osaka 565-0871, Japan
| | - Akinori Agariguchi
- Department of Removable Prosthodontics and Occlusion, Osaka Dental University, 8-1, Kuzuhahanazono-cho, Hirakata-shi, Osaka 573-1121, Japan
| | - Tohru Sekino
- The Institute of Scientific and Industrial Research, Osaka University, Suita, Osaka 565-0871, Japan
| | - Joji Okazaki
- Department of Removable Prosthodontics and Occlusion, Osaka Dental University, 8-1, Kuzuhahanazono-cho, Hirakata-shi, Osaka 573-1121, Japan
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18
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Potential of non-thermal N2 plasma-treated buffer (NPB) for inhibiting plant pathogenic bacteria and enhancing food storage. Lebensm Wiss Technol 2020. [DOI: 10.1016/j.lwt.2020.109210] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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19
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Sakudo A, Yagyu Y, Onodera T. Disinfection and Sterilization Using Plasma Technology: Fundamentals and Future Perspectives for Biological Applications. Int J Mol Sci 2019; 20:ijms20205216. [PMID: 31640211 PMCID: PMC6834201 DOI: 10.3390/ijms20205216] [Citation(s) in RCA: 95] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 10/19/2019] [Accepted: 10/21/2019] [Indexed: 02/07/2023] Open
Abstract
Recent studies have shown that plasma can efficiently inactivate microbial pathogens such as bacteria, fungi, and viruses in addition to degrading toxins. Moreover, this technology is effective at inactivating pathogens on the surface of medical and dental devices, as well as agricultural products. The current practical applications of plasma technology range from sterilizing therapeutic medical devices to improving crop yields, as well as the area of food preservation. This review introduces recent advances and future perspectives in plasma technology, especially in applications related to disinfection and sterilization. We also introduce the latest studies, mainly focusing on the potential applications of plasma technology for the inactivation of microorganisms and the degradation of toxins.
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Affiliation(s)
- Akikazu Sakudo
- Faculty of Veterinary Medicine, Okayama University of Science, Imabari, Ehime 794-8555, Japan.
| | - Yoshihito Yagyu
- Department of Electrical and Electric Engineering, National Institute of Technology Sasebo College, Nagasaki 857-1193, Japan.
| | - Takashi Onodera
- Research Center for Food Safety, Graduate School of Agricultural and Life Sciences, the University of Tokyo, Bunkyo-ku, Tokyo 113-8657, Japan.
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20
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Zhou R, Zhou R, Wang P, Luan B, Zhang X, Fang Z, Xian Y, Lu X, Ostrikov KK, Bazaka K. Microplasma Bubbles: Reactive Vehicles for Biofilm Dispersal. ACS APPLIED MATERIALS & INTERFACES 2019; 11:20660-20669. [PMID: 31067024 DOI: 10.1021/acsami.9b03961] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Interactions between effects generated by cold atmospheric-pressure plasmas and water have been widely investigated for water purification, chemical and nanomaterial synthesis, and, more recently, medicine and biotechnology. Reactive oxygen and nitrogen species (RONS) play critical roles in transferring the reactivity from gas plasmas to solutions to induce specific biochemical responses in living targets, e.g., pathogen inactivation and biofilm removal. While this approach works well in a single-organism system at a laboratory scale, integration of plasma-enabled biofilm removal into complex real-life systems, e.g., large aquaculture tanks, is far from trivial. This is because it is difficult to deliver sufficient concentrations of the right kind of species to biofilm-covered surfaces while carefully maintaining a suitable physiochemical environment that is healthy for its inhabitants, e.g., fish. In this work, we show that underwater microplasma bubbles (generated by a microplasma-bubble reactor that forms a dielectric barrier discharge at the gas-liquid interface with the applied voltage of 4.0 kV) act as transport vehicles to efficiently deliver reactive plasma species to the target biofilm sites on artificial and living surfaces while keeping healthy water conditions in a multispecies system. The as-generated air microplasma bubbles and plasma-activated water (PAW) both can effectively reduce the existing pathogenic biofilm load by ∼83 and 60%, respectively, after 15 min of discharge at 40 W and prevent any new biofilm from forming. The generation of underwater microplasma bubbles in a custom-made fish tank for less than a minute per day (20 s per time, twice daily) can introduce sufficient quantities of RONS into PAW to reduce the biofilm-infected area by ∼80-90% and improve the health status of Cichlasoma synspilum × Cichlasoma citrinellum blood parrot cichlid fish. Species generated include hydrogen peroxide, ozone, nitrite, nitrate, and nitric oxide. Using mimicked chemical solutions, we show that the plasma-induced nitric oxide acts as a critical bioactive species that triggers the release of cells from the biofilm and their inactivation.
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Affiliation(s)
| | | | | | - Bingyu Luan
- Fujian Provincial Key Laboratory of Plasma and Magnetic Resonance, Institute of Electromagnetics and Acoustics, Department of Electronic Science, College of Electronic Science and Technology , Xiamen University , Xiamen 361005 , China
| | - Xianhui Zhang
- Fujian Provincial Key Laboratory of Plasma and Magnetic Resonance, Institute of Electromagnetics and Acoustics, Department of Electronic Science, College of Electronic Science and Technology , Xiamen University , Xiamen 361005 , China
| | - Zhi Fang
- College of Electrical Engineering and Control Science , Nanjing Tech University , Nanjing 210009 , China
| | - Yubin Xian
- State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering , Huazhong University of Science and Technology , Wuhan 430074 , China
| | - Xinpei Lu
- State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering , Huazhong University of Science and Technology , Wuhan 430074 , China
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21
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Smolková B, Uzhytchak M, Lynnyk A, Kubinová Š, Dejneka A, Lunov O. A Critical Review on Selected External Physical Cues and Modulation of Cell Behavior: Magnetic Nanoparticles, Non-thermal Plasma and Lasers. J Funct Biomater 2018; 10:jfb10010002. [PMID: 30586923 PMCID: PMC6463085 DOI: 10.3390/jfb10010002] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Revised: 12/13/2018] [Accepted: 12/21/2018] [Indexed: 12/18/2022] Open
Abstract
Physics-based biomedical approaches have proved their importance for the advancement of medical sciences and especially in medical diagnostics and treatments. Thus, the expectations regarding development of novel promising physics-based technologies and tools are very high. This review describes the latest research advances in biomedical applications of external physical cues. We overview three distinct topics: using high-gradient magnetic fields in nanoparticle-mediated cell responses; non-thermal plasma as a novel bactericidal agent; highlights in understanding of cellular mechanisms of laser irradiation. Furthermore, we summarize the progress, challenges and opportunities in those directions. We also discuss some of the fundamental physical principles involved in the application of each cue. Considerable technological success has been achieved in those fields. However, for the successful clinical translation we have to understand the limitations of technologies. Importantly, we identify the misconceptions pervasive in the discussed fields.
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Affiliation(s)
- Barbora Smolková
- Institute of Physics of the Czech Academy of Sciences, 18221 Prague, Czech Republic.
| | - Mariia Uzhytchak
- Institute of Physics of the Czech Academy of Sciences, 18221 Prague, Czech Republic.
| | - Anna Lynnyk
- Institute of Physics of the Czech Academy of Sciences, 18221 Prague, Czech Republic.
| | - Šárka Kubinová
- Institute of Physics of the Czech Academy of Sciences, 18221 Prague, Czech Republic.
- Institute of Experimental Medicine of the Czech Academy of Sciences, 14220 Prague, Czech Republic.
| | - Alexandr Dejneka
- Institute of Physics of the Czech Academy of Sciences, 18221 Prague, Czech Republic.
| | - Oleg Lunov
- Institute of Physics of the Czech Academy of Sciences, 18221 Prague, Czech Republic.
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22
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Julák J, Scholtz V, Vaňková E. Medically important biofilms and non-thermal plasma. World J Microbiol Biotechnol 2018; 34:178. [PMID: 30456518 DOI: 10.1007/s11274-018-2560-2] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Accepted: 11/13/2018] [Indexed: 11/29/2022]
Abstract
In recent decades, the non-thermal plasma, i.e. partially or completely ionized gas produced by electric discharges at ambient temperature, has become of interest for its microbiocidal properties with potential of use in the food industry or medicine. Recently, this interest focuses not only on the planktonic forms of microorganisms but also on their biofilms. The works in this interdisciplinary field are summarized in this review. The wide range of biofilm-plasma interactions is divided into studies of general plasma action on bacteria, on biofilm and on its oral and dental application; a short overview of plasma instrumentation is also included. In addition, not only biofilm combating but also an important area of biofilm prevention is discussed. Various DC discharges of the point-to-plane type. Author's photograph, published in Khun et al. (Plasma Sources Sci Technol 27:065002, 2018).
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Affiliation(s)
- Jaroslav Julák
- Institute of Immunology and Microbiology, First Faculty of Medicine, Charles University and General University Hospital, Studničkova 7, 128 00, Prague 2, Czech Republic.
| | - Vladimír Scholtz
- Department of Physics and Measurements, University of Chemistry and Technology, Technická 5, 166 28, Prague 6, Czech Republic
| | - Eva Vaňková
- Department of Biotechnology, University of Chemistry and Technology, Technická 5, 166 28, Prague 6, Czech Republic
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