Article
Engineering, Environmental
James M. Mattila, Caleb Arata, Andrew Abeleira, Yong Zhou, Chen Wang, Erin F. Katz, Allen H. Goldstein, Jonathan P. D. Abbatt, Peter F. DeCarlo, Marina E. Vance, Delphine K. Farmer
Summary: The study of indoor Reactive Organic Carbon (ROC) emissions found that cooking significantly impacts indoor ROC concentrations and physicochemical properties, while cleaning has minimal effects. Indoor ROC emissions may play an important role in air quality and secondary pollutant formation outdoors.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Physics, Fluids & Plasmas
Yongkang Peng, Xiaoyue Chen, Yeqiang Deng, Lei Lan, Haoyu Zhan, Xuekai Pei, Jiahao Chen, Yukuan Yuan, Xishan Wen
Summary: This study examined the key particles and chemical reactions that significantly influence plasma characteristics, and developed models to analyze these factors. The analysis revealed the charge and substance transfer mechanism of atmospheric pressure pulse discharge plasma in humid air.
PLASMA SCIENCE & TECHNOLOGY
(2022)
Review
Chemistry, Analytical
Xiaoying Kang, Yue Li, Shuai Yin, Wen Li, Ji Qi
Summary: This review highlights the recent advances of aggregation-induced emission luminogens (AlEgens) based probes in detecting reactive species and their biomedical applications. The molecular design strategies and theranostic applications are summarized, and the challenges and prospects are discussed.
Review
Physics, Applied
Wen Zhou, Xiuqing Wang, Xiaojing Huang
Summary: Cold atmospheric pressure plasmas (CAP) have wide applications in dentistry, including surface modification of dental materials, biofilm removal, disinfection, endodontic therapy, periodontitis treatment, wound healing, and head and neck cancer control.
PLASMA PROCESSES AND POLYMERS
(2022)
Article
Environmental Sciences
Weerasooriya Arachchillage Rangika Thilaksri Wijayakoon Bandara, Chamodi Tharuni Mahanama Dissanayake
Summary: The study assessed the Air Pollution Tolerance Index (APTI) of five roadside tree species in two environmental settings in Colombo, Sri Lanka, with Madhuca longifolia having the highest APTI values followed by P. pterocarpum, T. catappa, C. fistula, and P. pinnata.
Article
Physics, Fluids & Plasmas
T. von Woedtke, M. Laroussi, M. Gherardi
Summary: Plasma medicine involves the therapeutic application of nonequilibrium plasmas, which are weakly ionized gases, for various medical purposes. These plasmas can emit radiation and contain charged and neutral species, interacting with surrounding matter and influencing the redox balance in cells. Current clinical applications of plasma medicine mainly focus on wound healing, while research on plasma oncology for cancer treatment is emerging. The future of plasma medicine lies in improving and expanding the control and optimization of plasma devices, as well as developing new plasma-based therapies in medicine.
PLASMA SOURCES SCIENCE & TECHNOLOGY
(2022)
Review
Immunology
Si-yue Zhai, Michael G. Kong, Yu-min Xia
Summary: Skin diseases can be categorized into infectious diseases, non-infectious inflammatory diseases, cancers, and wounds. The underlying causes include microbial infections, autoimmune responses, abnormal cellular proliferation or differentiation, and excessive production of inflammatory factors. Cold atmospheric plasma (CAP), as an innovative and non-invasive therapeutic approach, has shown promising efficacy in dermatology by inhibiting infections, promoting wound healing, suppressing cancer growth, and improving psoriasis or vitiligo lesions. This review summarizes recent advances in CAP therapies for various skin diseases and proposes future strategies for increasing effectiveness and expanding clinical indications.
FRONTIERS IN IMMUNOLOGY
(2022)
Article
Multidisciplinary Sciences
Matthew M. Coggon, Georgios I. Gkatzelis, Brian C. McDonald, Jessica B. Gilman, Rebecca H. Schwantes, Nader Abuhassan, Kenneth C. Aikin, Mark F. Arend, Timothy A. Berkoff, Steven S. Brown, Teresa L. Campos, Russell R. Dickerson, Guillaume Gronoff, James F. Hurley, Gabriel Isaacman-VanWertz, Abigail R. Koss, Meng Li, Stuart A. McKeen, Fred Moshary, Jeff Peischl, Veronika Pospisilova, Xinrong Ren, Anna Wilson, Yonghua Wu, Michael Trainer, Carsten Warneke
Summary: Decades of air quality improvements have reduced motor vehicle emissions, with VCPs now responsible for half of petrochemical VOCs in major urban areas. VCP emissions are widespread in US and European cities, impacting air quality, as illustrated by significant emissions in New York City. The study shows that VCP emissions, especially fragranced VCPs, have a significant impact on ozone levels in urban areas.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Physics, Fluids & Plasmas
Lei Wang, Constantinos Lazarou, Charalambos Anastassiou, George E. Georghiou, Christophe Leys, Anton Nikiforov
Summary: This study investigated planar atmospheric pressure RF plasma using diagnostics and numerical modeling, developing a novel methodology by converting a two-dimensional model into a series of one-dimensional models. The numerical model reproduced the experimental results accurately, showing the influence of air impurities on electron densities and the behavior of reactive oxygen species in biomedical applications.
PLASMA SOURCES SCIENCE & TECHNOLOGY
(2021)
Article
Food Science & Technology
Shanrui Li, Xi Yao, Xiaolong Wang, Shuqi Tian, Yuantao Zhang
Summary: This study used a Reactive Molecular Dynamics simulation to examine the interaction between reactive oxygen species (ROS) and aflatoxin B-1 (AFB(1)) in cold atmospheric plasma (CAP) decontamination. The simulation results showed that ROS can effectively reduce the toxicity of AFB(1) by reacting with its key structures. The findings provide valuable insights for the optimization of aflatoxin degradation in industrial applications.
INNOVATIVE FOOD SCIENCE & EMERGING TECHNOLOGIES
(2022)
Article
Environmental Sciences
Offir Inbar, Alexandra Chudnovsky, Kevin Ohneiser, Albert Ansmann, Stanislav Ratner, Roman Sirota, Yaron Aviv, Dror Avisar
Summary: Atmospheric water is considered as an alternative sustainable solution for global water scarcity, with its chemical characteristics being influenced by meteorological and air-quality parameters. Different pollution sources have a strong impact on water quality, and the presence of sea salt aerosols and seasonal climate conditions affect the concentration of elements in water.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Chemistry, Multidisciplinary
Yuma Suenaga, Toshihiro Takamatsu, Toshiki Aizawa, Shohei Moriya, Yuriko Matsumura, Atsuo Iwasawa, Akitoshi Okino
Summary: The study found that nitrogen plasma produced a higher concentration of OH radicals, while the concentration of singlet oxygen in carbon dioxide plasma increased with gas temperature. The bactericidal ability of carbon dioxide plasma increased with gas temperature, while nitrogen plasma did not exhibit a high bactericidal effect.
APPLIED SCIENCES-BASEL
(2021)
Article
Environmental Sciences
Dong Yeong Chang, Sujong Jeong, Jaewon Shin, Jungmin Park, Chan Ryul Park, Sumin Choi, Chi-Hwan Chun, Min-Young Chae, Byung Chul Lim
Summary: This study is the first report on atmospheric microplastics (MPs) observed in different outdoor environments in Seoul, South Korea. The abundance and distribution of atmospheric MPs varied depending on the environment and showed a positive correlation with human activity.
ENVIRONMENTAL POLLUTION
(2023)
Article
Chemistry, Multidisciplinary
Mao Ye, Tao Xu, Min Liu, Yatong Zhu, Dundong Yuan, Hao Zhang, Ming Qin, Litao Sun
Summary: Reactive oxygen species (ROS) play a significant role in various biological and chemical reactions. However, due to their short lifespan, traditional ROS detection techniques cannot provide real-time monitoring and identification of individual reactive species in ROS-driven reactions. In this study, through in situ liquid cell TEM and ex situ experiments, the researchers were able to visualize the real-time ROS-driven etching of Prussian blue (PB) and identify the dominant reactive species involved. The findings indicate that highly oxidative (OH)-O• is the main reactive radical in rapid chemical etching driven by ROS, which allows for the synthesis of hollow mesoporous PB nanoparticles on a minute-level timescale. This research provides valuable insights into ROS-related oxidation, enhancing our understanding of ROS chemistry and expanding its applications in advanced chemical etching.
Article
Chemistry, Multidisciplinary
Aswin Kottapurath Vijay, Virender K. Sharma, Dan Meyerstein
Summary: Iron(II), Fe-II, plays a crucial role in various natural and biological reactions. Understanding the mechanism and rates of Fe-II oxidation by molecular oxygen (O-2) in the presence of bicarbonate (HCO3-) is essential due to its high concentration in environmental conditions. While previous studies suggested the formation of reactive oxygen species, this study demonstrates the rapid generation of carbonate radicals (CO3 center dot-) in Fe-II oxidation by O-2 in the presence of bicarbonate. The findings highlight the importance of considering CO3 center dot- formation in the geochemical cycling of iron and carbon.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Physics, Applied
J. Ellis, J. Branson, K. Niemi, E. Wagenaars, T. Gans
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2020)
Article
Physics, Applied
Gregory J. Smith, James Ellis, Roba Moussaoui, Cedric Pardanaud, Celine Martin, Jocelyn Achard, Riadh Issaoui, Timo Gans, James P. Dedrick, Gilles Cartry
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2020)
Article
Physics, Fluids & Plasmas
Sandra Schroter, Jerome Bredin, Andrew R. Gibson, Andrew West, James P. Dedrick, Erik Wagenaars, Kari Niemi, Timo Gans, Deborah O'Connell
PLASMA SOURCES SCIENCE & TECHNOLOGY
(2020)
Article
Physics, Fluids & Plasmas
F. Riedel, J. Golda, J. Held, H. L. Davies, M. W. van der Woude, J. Bredin, K. Niemi, T. Gans, V Schulz-von Der Gathen, D. O'Connell
PLASMA SOURCES SCIENCE & TECHNOLOGY
(2020)
Article
Physics, Applied
Alexandra Brisset, Andrew R. Gibson, Sandra Schroeter, Kari Niemi, Jean-Paul Booth, Timo Gans, Deborah O'Connell, Erik Wagenaars
Summary: This study investigates the impact of adding oxygen and water vapor to helium plasma on the density of OH, revealing that the addition of O-2 leads to a significant increase in atomic oxygen density. The simulations show that OH, O, and O-3 densities can be controlled relatively independently over a wide range of conditions through the addition of multiple gas admixtures.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2021)
Editorial Material
Physics, Fluids & Plasmas
Sadruddin Benkadda, Satoshi Hamaguchi, Magali Muraglia, Deborah O'Connell
PHYSICS OF PLASMAS
(2021)
Article
Physics, Applied
Gregory J. Smith, Lenny Tahri, Jocelyn Achard, Riadh Issaoui, Timo Gans, James P. Dedrick, Gilles Cartry
Summary: The production of negative ions is crucial for various applications such as mass spectrometry, materials surface processing, and magnetic confined fusion. Investigating materials and techniques to avoid low work function metals can expand the application of negative ion sources. Using pulsed sample biasing to study the surface production of negative ions from nitrogen-doped diamond shows a higher negative ion yield and suggests the formation of an optimal ratio of defects on the surface for enhanced production.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2021)
Article
Physics, Fluids & Plasmas
Alexandra Brisset, Benjamin Harris, Aaron Dickenson, Kari Niemi, James Walsh, Erik Wagenaars
Summary: Control of plasma chemistry is crucial for atmospheric pressure plasma in various applications. This study investigates the effects of humidity on discharge development, electric field, and electron density through experiments and modeling, providing experimental data for verifying kinetic models of plasmas in controlled environments.
PLASMA SOURCES SCIENCE & TECHNOLOGY
(2022)
Article
Physics, Fluids & Plasmas
Jonathan Tennyson, Sebastian Mohr, M. Hanicinec, Anna Dzarasova, Carrick Smith, Sarah Waddington, Bingqing Liu, Luis L. Alves, Klaus Bartschat, Annemie Bogaerts, Sebastian U. Engelmann, Timo Gans, Andrew R. Gibson, Satoshi Hamaguchi, Kathryn R. Hamilton, Christian Hill, Deborah O'Connell, Shahid Rauf, Kevin van 't Veer, Oleg Zatsarinny
Summary: The Quantemol database is a valuable resource for plasma models, providing cross sections and rates of important processes. It includes data on heavy particle collisions, electron collision processes, and surface processes. Users can access the data through a web interface or application program interface and use it in popular plasma modeling codes.
PLASMA SOURCES SCIENCE & TECHNOLOGY
(2022)
Article
Physics, Fluids & Plasmas
Helen L. Davies, Vasco Guerra, Marjan van der Woude, Timo Gans, Deborah O'Connell, Andrew R. Gibson
Summary: Characterisation of vibrational kinetics in nitrogen-based plasmas at atmospheric pressure is crucial for various applications. A 0-dimensional plasma chemical-kinetics model was used to study vibrational kinetics in pulsed atmospheric pressure plasmas operating in pure nitrogen. The simulations show that the production of vibrationally excited states is dominated by electron-impact processes at lower powers, but switches to vibrational energy transfer processes at higher powers, resulting in significant increase in the population of vibrational levels.
PLASMA SOURCES SCIENCE & TECHNOLOGY
(2023)
Review
Physics, Fluids & Plasmas
Luis L. Alves, Markus M. Becker, Jan van Dijk, Timo Gans, David B. Go, Katharina Stapelmann, Jonathan Tennyson, Miles M. Turner, Mark J. Kushner
Summary: The field of low-temperature plasmas (LTPs) excels by its intellectual diversity, interdisciplinarity, and range of applications. Communication challenges arise due to diverse reporting practices and expectations. This paper addresses these challenges by discussing standards for measurements, diagnostics, computations, reporting, and plasma sources to improve communication and transparency within the LTP field.
PLASMA SOURCES SCIENCE & TECHNOLOGY
(2023)
Article
Physics, Fluids & Plasmas
S-J Klose, J. Ellis, F. Riedel, S. Schroter, K. Niemi, I. L. Semenov, K-D Weltmann, T. Gans, D. O'Connell, J. H. van Helden
PLASMA SOURCES SCIENCE & TECHNOLOGY
(2020)