Article
Biotechnology & Applied Microbiology
Xiao Liu, Yunfei Li, Rong Zhang, Lulu Huangfu, Guihong Du, Qisen Xiang
Summary: The combined treatment of plasma-activated water (PAW) and sodium laureth sulfate (SLES) showed significant antifungal effects against Saccharomyces cerevisiae by causing oxidative damage to cell membranes and abnormal mitochondrial membrane potential, eventually leading to cell death. This study demonstrates the potential application of PAW combined with SLES as an alternative disinfection method.
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
(2021)
Article
Food Science & Technology
Zonghong Luo, Guanhong Chang, Yang Liu, Ke Ni, Ting Zhou, Xin Lv, Jiangtao Yu, Junqing Bai, Xin Wang
Summary: This study evaluated the effect of electron beam irradiation on the inactivation of Gram-negative bacteria and the destruction of extracellular polymers (EPS) in biofilms. The results showed that electron beam irradiation significantly reduced the number of viable bacteria both in vitro and on the surface of seafood samples, and it damaged the plasma membrane of bacterial cells by increasing reactive oxygen species (ROS) levels. Furthermore, the nucleic acids of the bacteria were also significantly damaged, while the primary protein structure remained unchanged.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2022)
Article
Food Science & Technology
Zhilin Gan, Yuyu Zhang, Weiman Gao, Simin Wang, Yue Liu, Yuhang Xiao, Xibing Zhuang, Aidong Sun, Ruixue Wang
Summary: This study found that plasma-activated water (PAW) is more effective in inactivating Escherichia coli and Staphylococcus aureus on blueberries compared to water treatment. The microbial inactivation of PAW is achieved by damaging the cell membrane and denaturing DNA. In addition, PAW treatment has a better effect on maintaining the freshness of blueberries.
Article
Food Science & Technology
Gaeul Lee, Sung-Wook Choi, Miyoung Yoo, Hyun-Joo Chang, Nari Lee
Summary: In this study, the potential of plasma-activated water (PAW) as a wash solution for decontaminating cherry tomatoes was investigated. The optimal immersion time in PAW15 (generated via plasma activation for 15 min) for microbial decontamination was found to be 5 min. PAW15 showed better bactericidal efficacy compared to mimic solutions with equivalent reactive species concentrations and pH, indicating the involvement of a wide range of plasma-derived reactive species in the decontamination process.
Article
Chemistry, Multidisciplinary
Ken Mizoi, Vicente Rodriguez-Gonzalez, Mao Sasaki, Shoki Suzuki, Kaede Honda, Naoya Ishida, Norihiro Suzuki, Kazuyuki Kuchitsu, Takeshi Kondo, Makoto Yuasa, Akira Fujishima, Katsuya Teshima, Chiaki Terashima
Summary: Lightning strikes cause nitrogen to dissolve in water, forming reactive nitrogen and oxygen species that act as natural fertilizers. Plasma-activated water (PAW) has the potential to produce various dissolved reactive chemical species. The antialgal effect of PAW is influenced by ions such as NO2-, NO3-, and H2O2, as well as secondary reactive ions. The pH around the algal cells plays a significant role in the antialgal mechanism.
Article
Food Science & Technology
Yi-Ming Zhao, Shikha Ojha, Catherine M. Burgess, Da-Wen Sun, Brijesh K. Tiwari
Summary: This study found that the inactivation efficacy of PAW was positively correlated with plasma treatment time and bacterial exposure time, with Gram-negative species being more sensitive to PAW than Gram-positive species. Bacteria showed cell structure damage after treatment with PAW, accompanied by acidification of pH and increase in conductivity.
INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY
(2021)
Article
Food Science & Technology
Jian Guo, Jiaoyu Wang, Hui Xie, Junlong Jiang, Chunyuan Li, Wanting Li, Ling Li, Xingquan Liu, Fucheng Lin
Summary: The usage of fungicides is potentially harmful to the environment and organisms, prompting researchers to explore alternatives such as Plasma-activated water (PAW) for inactivating phytopathogens. The study found that PAW significantly inhibited spore activity and reduced symptoms caused by Fusarium graminearum, inducing changes in cell wall sculpturing, membrane permeability, and mitochondrial function. This suggests the potential of PAW as a fungicidal agent or supplement to traditional fungicides.
Article
Food Science & Technology
Yijie Zhao, Lele Shao, Lihong Jia, Bo Zou, Ruitong Dai, Xingmin Li, Fei Jia
Summary: This study investigated the effects of cold atmospheric plasma on Pseudomonas aeruginosa and its inactivation mechanism. The results showed that air-CAP had better inactivation capacity than nitrogen-CAP, and the mechanism involved damage to cell morphology, changes in membrane permeability, disruption of intracellular ionic equilibrium, and lipid peroxidation.
INNOVATIVE FOOD SCIENCE & EMERGING TECHNOLOGIES
(2022)
Article
Food Science & Technology
Wenhui Zhu, Guizhi Tan, Menglin Han, Ying Bu, Xuepeng Li, Jianrong Li
Summary: The study developed a non-thermal processing technology called plasma-activated slightly acidic electrolyzed water (PASW) to better preserve salmon fillets. PASW treatment was found to be more effective in inactivating microorganisms compared to PAW and SAEW treatments. Furthermore, PASW treatment did not affect the quality of salmon fillets.
INNOVATIVE FOOD SCIENCE & EMERGING TECHNOLOGIES
(2023)
Article
Nanoscience & Nanotechnology
Nicholas S. L. Chew, Kiing S. Wong, Wei S. Chang, Chien W. Ooi, Leslie Y. Yeo, Ming K. Tan
Summary: Plasma treatment is an efficient chemical-free disinfection method. By combining nanoscale technologies, we have achieved nanoscale plasma activation and surface spraying in a small and lightweight device. This device shows significant improvements in plasma activation and disinfection time compared to previous methods.
MICROSYSTEMS & NANOENGINEERING
(2022)
Article
Engineering, Chemical
Stephane Simon, Breno Salgado, Mohammad I. Hasan, Morten Sivertsvik, Estefania Noriega Fernandez, James L. Walsh
Summary: The study utilized air plasma to activate tap water samples from five different countries, observing variations in pH and chemical composition post-activation. It was found that the initial water composition significantly impacted the level of plasma activation, suggesting additional purification steps may be necessary for efficacy and repeatability.
PLASMA CHEMISTRY AND PLASMA PROCESSING
(2022)
Review
Biotechnology & Applied Microbiology
Syamlal Sasi, Karthika Prasad, Janith Weerasinghe, Olha Bazaka, Elena P. Ivanova, Igor Levchenko, Kateryna Bazaka
Summary: Global challenges in the environment, society, and economy require innovative solutions for food production. Current systems need to surpass traditional paradigms in order to address sustainability and lack of awareness of technologies that can limit nutrient loss from soil. Aquaponics, a closed-loop system combining aquaculture with hydroponics, offers a more efficient approach to managing scarce resources. However, its large-scale implementation is hindered by challenges in water chemistry, infection management, and productivity. This paper explores the potential of plasma technologies in overcoming these challenges and promoting sustainability in food production.
TRENDS IN BIOTECHNOLOGY
(2023)
Review
Food Science & Technology
Pan Wang, Runze Shang, Yue Ma, Dan Wang, Wenting Zhao, Fang Chen, Xiaosong Hu, Xiaoyan Zhao
Summary: Resveratrol, a natural polyphenolic compound found in grapes, berries, and red wine, has been shown to exhibit anticancer activities. Understanding its metabolic characteristics and mechanisms, particularly its effects on gut microbiota and the role of RSV metabolites, is crucial for exploring its potential as a cancer therapy.
CRITICAL REVIEWS IN FOOD SCIENCE AND NUTRITION
(2022)
Article
Engineering, Chemical
Di Qiao, Yinglong Li, Jie Pan, Jue Zhang, Ying Tian, Kaile Wang
Summary: The study aimed to investigate the inhibition effects of plasma activated water (PAW) on Streptococcus mutans biofilm and its mechanisms. The results showed that PAW had a strong inactivation effect on S. mutans biofilm, possibly through the generation of reactive species.
PLASMA CHEMISTRY AND PLASMA PROCESSING
(2022)
Article
Physics, Multidisciplinary
F. Matejka, P. Galar, J. Khun, V Scholtz, K. Kusova
Summary: Plasma activated water (PAW), traditionally used for decontamination and disinfection, can also be beneficial for tailoring the surface chemistry of semiconductor nanostructures when containing a high concentration of nitrogen-related species (HiN:PAW). The pathways leading to the production of HiN:PAW are investigated by monitoring the composition of PAW and the concentration of selected species in the discharge under various conditions. The presence of a barrier area in the discharge reactor is identified as a key factor for the production of HiN:PAW.
Article
Materials Science, Multidisciplinary
Tianqi Zhang, Renwu Zhou, Shuai Zhang, Rusen Zhou, Jia Ding, Fengwang Li, Jungmi Hong, Liguang Dou, Tao Shao, Anthony B. Murphy, Kostya (Ken) Ostrikov, Patrick J. Cullen
Summary: This study demonstrates successful ammonia synthesis from nitrogen and water using nonthermal plasma catalysis. The findings suggest that plasma-induced vibrational excitation and matched catalysts in the nonthermal plasma discharge reactor contribute to molecular dissociation. The results show that the ruthenium catalyst supported on magnesium oxide exhibits superior performance in ammonia production. This research highlights the potential of nonthermal plasma catalysis for sustainable ammonia production.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)
Article
Physics, Applied
Yangyang Zhou, Tao Jiang, Li Zhang, Sen Wang, Renwu Zhou, Xinglei Cui, Zhi Fang
Summary: Plasma-activated H2O2 solutions mist (PAHM) improves the reactivity and bactericidal efficiency, making it suitable for high-efficient and long-term logistics sterilization.
PLASMA PROCESSES AND POLYMERS
(2023)
Article
Chemistry, Multidisciplinary
Amandeep Singh Pannu, Suvankar Sen, Xiaodong (Tony) Wang, Robert Jones, Kostya (Ken) Ostrikov, Prashant Sonar
Summary: Organic-inorganic hybrid lead trihalide perovskites have shown promise in various optoelectronic devices. Red-emitting perovskite-based LEDs have been less developed compared to green and blue ones. This study utilizes red-emitting 2D perovskites and carbon dots to create a stable composite material for red-emitting LEDs with improved performance.
Article
Nanoscience & Nanotechnology
Negar Zebardastan, Jonathan Bradford, Josh Lipton-Duffin, Jennifer MacLeod, Kostya (Ken) Ostrikov, Massimo Tomellini, Nunzio Motta
Summary: Face-to-face annealing is an effective method for obtaining epitaxial graphene with precise control over size, quality, growth rate and thickness.
Article
Physics, Fluids & Plasmas
Kun Liu, Wenqiang Geng, Xiongfeng Zhou, Qingsong Duan, Zhenfeng Zheng, Kostya (Ken) Ostrikov
Summary: Two modes of the atmospheric-pressure plasma discharge, characterized by the dominant O-3 and NO (x) species, were studied using numerical and experimental methods. A global chemical kinetics model was developed to investigate the mode transition mechanisms, and it accurately described the transition. The individual and synergistic effects of discharge energy and gas temperature on species density and the relative contributions of dominant reactions were quantified under increasing discharge voltage conditions.
PLASMA SOURCES SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Darwin Kurniawan, Jacob Mathew, Michael Ryan Rahardja, Hoang-Phuc Pham, Pei-Chun Wong, Neralla Vijayakameswara Rao, Kostya (Ken) Ostrikov, Wei-Hung Chiang
Summary: This study reports the development of smart anticancer drug nanocarriers through plasma engineering technique. The nanocarriers containing chitosan and nitrogen-doped graphene quantum dots can release drugs in a pH-responsive manner and exhibit enhanced toughness. The loaded nanocarriers demonstrate improved drug loading capability and stable release, showing great potential in cancer treatment.
Article
Chemistry, Multidisciplinary
Xin Zeng, Shuai Zhang, Yadi Liu, Xiucui Hu, Kostya Ken Ostrikov, Tao Shao
Summary: To meet global net-zero emission targets, sustainable and low-carbon alternatives are urgently needed for energy-intensive industrial processes like ammonia synthesis. In this study, plasma catalysis is used to achieve renewable-electricity-driven ammonia synthesis under mild conditions. By identifying energy loss pathways and optimizing process parameters, such as pulse voltage and gap distance, high ammonia yields with high energy efficiency and low emission footprint are obtained.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Haotian Gao, Guoli Wang, Zhongzheng Huang, Lanlan Nie, Dawei Liu, Xinpei Lu, Guangyuan He, Kostya Ken Ostrikov
Summary: Nitrogen fixation is a crucial process for various biological and industrial processes, but it is also a major source of carbon emissions globally. In this study, a novel approach using plasma-activated mist (PAM) is proposed for efficient and sustainable nitrogen fixation. The PAM system generates nitrogen-fixation species through the reaction of air plasma and water mist, and the liquid-phase nitrogen fixation product is dominated by NO3-. This system is applied to deliver nitrogen-based nutrients directly to plant roots using an aeroponic system, leading to significant improvements in plant growth.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Biotechnology & Applied Microbiology
M. Mozammel Hoque, Parisa Noorian, Gustavo Espinoza-Vergara, Srijon Adhikary, Joyce To, Scott A. Rice, Diane McDougald
Summary: The flagellar transcriptional regulator flrA plays a key role in flagellum synthesis initiation in Vibrio cholerae. This study demonstrates that the absence of flrA leads to increased growth and survival of V. cholerae in the amoeba host Acanthamoeba castellanii, and this is associated with upregulation of genes involved in iron acquisition and amino acid biosynthesis. The availability of iron is crucial for V. cholerae survival in amoeba, and the catalases KatB and KatG confer increased tolerance to oxidative stress. These findings highlight the importance of flrA in resistance to protozoan predation and provide insights into the molecular mechanisms underlying increased survival in the environment.
APPLIED AND ENVIRONMENTAL MICROBIOLOGY
(2023)
Article
Engineering, Environmental
Jing Sun, Tianqi Zhang, Jungmi Hong, Rusen Zhou, Hassan Masood, Renwu Zhou, Anthony B. Murphy, Kostya Ken Ostrikov, Patrick J. Cullen, Emma C. Lovell, Rose Amal, Ali Rouhollah Jalili
Summary: Current industrial nitrogen fixation technology relies on fossil fuels and has negative environmental impacts, but using electricity-driven non-thermal plasma catalysis shows promise for sustainable nitrogen fixation. This study combines a structured catalyst with a water-electrode bubble reactor to fix nitrogen at ambient conditions with high selectivity and stability. The enhanced production of nitrate ions is attributed to abundant oxidized nitrogen species from the air plasma, with the TiO2 supported by graphene oxide playing a crucial role in improving nitric oxide surface association and minimizing backward dissociation. These findings advance the potential of plasma-catalyzed nitrogen fixation for clean energy and eco-friendly chemical production.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Physics, Applied
Yuting Gao, Zhijie Liu, Bolun Pang, Sitao Wang, Bohan Chen, Zhongping Qu, Renwu Zhou
Summary: Plasma activated saline solution (PAS) has great potential in various applications such as sterilization, water treatment, wound healing, and cancer treatment. However, the role of reactive chlorine species (RCS) in PAS has been less studied. In this research, the formation mechanism of RCS in O-treated saline was investigated, and the effect of chlorine and oxygen concentration was explored. The results showed that the presence of chlorine, oxygen radicals, and solution pH were important factors in the production of RCS. The study also demonstrated the anticancer effects of PAS by biological inactivation functions.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Hsiuan Ling Ho, Jung Yen Yang, Chun Hung Lin, Jiann Shieh, Yu Fang Huang, Yi Hong Ho, Tsung Shine Ko, Chiung Chih Hsu, Kostya (Ken) Ostrikov
Summary: The development of reliable and cost-effective molecular detection at the attomolar level on analyte-immobilizing surfaces without lithographic patterning is a challenge in chemical sensing. This study presents a novel approach using plasma etching to produce custom-designed adhesive superhydrophobic silicon nanograss surfaces. These surfaces enable effective immobilization of Ag nanoparticles and R6G target molecules, providing a reliable Raman scattering platform for detecting trace analytes. The study also introduces a plasma-enabled approach for precise interface nanostructuring, potentially leading to unprecedented capabilities in molecular-level sensing technologies.
ADVANCED MATERIALS INTERFACES
(2023)
Article
Microbiology
Joanna G. G. Rothwell, Jungmi Hong, Stuart J. J. Morrison, Heema Kumari Nilesh Vyas, Binbin Xia, Anne Mai-Prochnow, Robyn McConchie, Kim-Yen Phan-Thien, Patrick J. J. Cullen, Dee A. A. Carter
Summary: Plasma-activated water (PAW) is a competitive sanitizer technology in the fresh food industry, achieving significant reduction of pathogens and spoilage microorganisms while maintaining the quality and shelf life of the produce item.
MICROBIOLOGY SPECTRUM
(2023)
Article
Polymer Science
Zhongyan Li, Matthew Crago, Timothy Schofield, Haoxiang Zeng, Heema Kumari Nilesh Vyas, Markus Mullner, Anne Mai-Prochnow, Syamak Farajikhah, Sina Naficy, Fariba Dehghani, Sepehr Talebian
Summary: In this study, a flexible pH-responsive hydrogel was developed by functionalizing hydrophilic polyurethanes with either cationic or anionic moieties. The physicochemical characterization of the resulting polymers was carried out, and the loading of the hydrogels with various compound models showed that the electrostatic forces between the polymeric backbone and the compound model determined the release rate at any given pH. The potential application of these hydrogels for chronic wound drug delivery was assessed and showed different degrees of antibacterial effect. Overall, cationic and anionic hydrophilic polyurethanes show potential as flexible pH-responsive materials for therapeutic delivery to chronic wounds. Rating: 8/10.
Review
Chemistry, Physical
Rusen Zhou, Yadong Zhao, Renwu Zhou, Tianqi Zhang, Patrick Cullen, Yao Zheng, Liming Dai, Kostya (Ken) Ostrikov
Summary: This review explores the use of plasma techniques for up-carbonization, a process that converts low-value, renewable, carbon-rich resources into high-value forms. It discusses the advantages of discharge plasmas in creating intense and reactive environments for efficient conversion, and highlights the potential for integrating plasma-based processes with renewable electricity. The review also identifies the current challenges and research needs in this field.
