Article
Biochemistry & Molecular Biology
Ewan Eadie, Paul O'Mahoney, Louise Finlayson, Isla Rose Mary Barnard, Sally Helen Ibbotson, Kenneth Wood
Summary: This study compares the DNA damage caused by far-UVC and sunlight exposure in different climatic conditions, revealing that sunlight exposure poses greater risk for DNA damage compared to far-UVC. It should be noted that the photochemical reactions and consequences of high-energy far-UVC photons absorbed by the stratum corneum remain unknown.
PHOTOCHEMISTRY AND PHOTOBIOLOGY
(2021)
Article
Engineering, Environmental
Catherine Drossou, Yannis Petrakis, Konstantina Tyrovola, Nikolaos P. Xekoukoulotakis
Summary: This study investigated the photochemical degradation of the commonly prescribed antidepressant sertraline in water. The results showed that the UVC/PS process was more efficient than the UVC/H2O2 process, and both processes resulted in partial mineralization of the compound.
Article
Biochemistry & Molecular Biology
Obaid Kousha, Paul O'Mahoney, Robert Hammond, Kenneth Wood, Ewan Eadie
Summary: In this pilot study, the safety and effectiveness of Far-UVC in reducing airborne transmission of disease were evaluated in a simulated office environment. The study found that Far-UVC did not cause any significant eye discomfort and was effective at reducing pathogens in the room, with a reduction of 52% in bacteria and fungi. These results contribute to the further investigation of the interaction between Far-UVC and the human eye.
PHOTOCHEMISTRY AND PHOTOBIOLOGY
(2023)
Article
Spectroscopy
Zeinab Ebrahimpour, Olena Pliekhova, Humberto Cabrera, Mahmoud Abdelhamid, Dorota Korte, Komlan Segbeya Gadedjisso-Tossou, Joseph Niemela, Urska Lavrencic Stangar, Mladen Franko
Summary: The experiments demonstrated that TiO2 and Cu/Zr modified TiO2 photocatalysts can efficiently degrade the dye RB19, with UV-Vis absorption spectrometry and thermal lens spectrometry used to elucidate the degradation mechanism. Under UV and simulated solar light, characteristic features such as bleaching of the dye and a slight blue shift in the absorption spectrum of RB19 were observed. Additionally, two different processes responsible for the dye degradation were identified, one under UV light and the other under simulated solar light with longer periods.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2021)
Article
Medicine, Research & Experimental
Hiroshi Ueda, Yuya Hirakawa, Tetsuya Miyano, Masaaki Imono, Jun Yee Tse, Hiromasa Uchiyama, Yuichi Tozuka, Kazunori Kadota
Summary: Coamorphous systems are emerging as alternatives to polymeric solid dispersions, but the glass transition temperatures of coamorphous materials are relatively low. This study explores the applicability of lactose as an antiplasticizing coformer in coamorphous systems and investigates its physical properties and stability.
MOLECULAR PHARMACEUTICS
(2022)
Article
Biochemistry & Molecular Biology
Michael A. Duncan, David Welch, Igor Shuryak, David J. Brenner
Summary: This study demonstrates that far-UVC radiation in indoor spaces can provide effective germicidal effects while minimizing the potential harm to human health, especially to the eyes.
PHOTOCHEMISTRY AND PHOTOBIOLOGY
(2023)
Article
Chemistry, Physical
Mengjie Sun, Yifan Zheng, Yifeng Shi, Guodong Zhang, Yuchuan Shao
Summary: This study demonstrates the feasibility of perovskite solar cells (PSCs) in the low-intensity-low-temperature (LILT) environment of Mars. The self-healing effect of the perovskite film under LILT conditions, resulting from light-induced decomposition and beta-phase perovskite recrystallization, contributes to the stable and improved performance of PSCs. This research provides important insights for the application of PSCs in Martian missions.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Chemistry, Physical
Sapna Sharma, Kuldeep Singh, Suvarcha Chauhan, Kuldeep Kumar
Summary: This study measured the density, speed of sound, and viscosity of aqueous solutions of the anti-histaminic drug diphenhydramine hydrochloride with different electrolytes. The effects of drug concentration and temperature on the interactional behavior of the system were analyzed, showing the role of specific and non-specific interactions between the drug and electrolytes in solution stabilization. The results were used to elucidate solute/solvent-solvent/solute interactions in aqueous electrolytic solutions.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Engineering, Environmental
Yibo Zhao, Lu Chang, Yueyang Li, Wenjing He, Keling Liu, Minjie Cui, Muhammad Usman Hameed, Jiyan Xie
Summary: Oxygen can generate reactive oxygen species in photocatalysis, promoting organic matter's mineralization. Therefore, enhanced oxygenation of the photocatalytic degradation system will help improve photocatalytic degradation efficiency. This study developed a novel high-gravity photocatalytic degradation method, which leverages the robust gas-liquid mass transfer capability of a supergravity rotating bed to realize the enhanced oxygenation of the photocatalytic degradation system. Specifically, this study used graphitic carbon nitride as the catalyst and tetracycline hydrochloride as the model pollutant. The effects of packing thickness, catalyst concentration, liquid flow rate, rotor speed, gas flow rate, and initial pH value on photocatalytic degradation performance were investigated. The results showed that the degradation rate of tetracycline hydrochloride reached 84.6 % under the optimal conditions of the rotating packed bed, which was 14.8 % higher than that of the traditional photocatalytic degradation process.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Ivana Jagodic, Imre Guth, Svetlana Lukic-Petrovic, Dragana Tamindzija, Daniela Sojic Merkulov, Nina Fincur, Szabolcs Bognar, Predrag Putnik, Nemanja Banic
Summary: Currently, environmental pollution by various organic pollutants such as organic dyes is a serious global issue. The aqueous environment is highly susceptible to the harmful effects of these organic compounds. The study investigated different Fe2O3/TiO2/PVC nanocomposites in tablet form for the photodegradation of methylene blue (MB) under simulated sunlight, as well as their potential antibacterial effects.
Article
Microbiology
Martin Hessling, Ben Sicks, Bernhard Lau
Summary: This study investigated the efficacy of far-UVC radiation at 222 nm for hand disinfection. The results showed that radiation at a dose of 23 mJ/cm² reduced bacterial colonies on hands by one log level, while a dose of 100 mJ/cm² reduced bacterial colonies on gloves by 1.3 log levels. Compared to a commercial disinfectant, the reduction in bacterial colonies by radiation was lower. In conclusion, far-UVC radiation can effectively reduce microorganisms, but its disinfection efficacy on hands and gloves is relatively poor compared to results in suspensions.
Article
Materials Science, Multidisciplinary
Xinyi Xia, Sergei Stepanoff, Aman Haque, Douglas E. Wolfe, Simon Barke, Peter J. Wass, Fan Ren, John W. Conklin, S. J. Pearton
Summary: 270 nm AlGaN UV Light-Emitting Diodes (LEDs) were exposed to 1-5 Mrad fluences of Co-60 & gamma;-rays. The highest fluence resulted in a -40% reduction in optical output, without inducing significant midgap emission. The decrease in optical output was attributed to the creation of non-radiative states within the active regions, while the irradiation caused small increases in forward and reverse current.
Article
Engineering, Chemical
Rafael R. Solis, Ana M. Chavez, Olga Monago-Marana, Arsenio Munoz de la Pena, Fernando J. Beltran
Summary: The combination of ozone and solar radiation has been proven to be an effective technology for the removal of harmful contaminants in water, particularly in the case of cefuroxime. Research showed that simultaneous application of ozone and solar radiation enhanced the degradation of cefuroxime, with hydroxyl radical playing a significant role in the process.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Applied
Cristina Bogatu, Maria Covei, Maria Inmaculada Polo-Lopez, Anca Duta, Sixto Malato
Summary: This study investigates the photocatalytic properties and efficiency of sol-gel ZnO powders. Results show that under optimized conditions, ZnO powder effectively removes organic pollutants from wastewaters.
Article
Computer Science, Information Systems
Fan Yang, Lei Shu, Yuli Yang, Guangjie Han, Simon Pearson, Kailiang Li
Summary: This article focuses on the constrained SIL deployment problem in a mixed-crop farmland and proposes a hole-aware node deployment method based on the greedy algorithm, which achieves better performance than peer algorithms.
IEEE INTERNET OF THINGS JOURNAL
(2021)
Article
Biotechnology & Applied Microbiology
Susan Stienen, Joao Pedro Ferreira, Masatake Kobayashi, Gregoire Preud'homme, Daniela Dobre, Jean-Loup Machu, Kevin Duarte, Emmanuel Bresso, Marie-Dominique Devignes, Natalia Lopez, Nicolas Girerd, Svend Aakhus, Giuseppe Ambrosio, Hans-Peter Brunner-La Rocca, Ricardo Fontes-Carvalho, Alan G. Fraser, Loek Van Heerebeek, Stephane Heymans, Gilles De Keulenaer, Paolo Marino, Kenneth McDonald, Alexandre Mebazaa, Zoltan Papp, Riccardo Raddino, Carsten Tschoepe, Walter J. Paulus, Faiez Zannad, Patrick Rossignol
Article
Engineering, Environmental
N. Lopez-Vinent, A. Cruz-Alcalde, C. Gutierrez, P. Marco, J. Gimenez, S. Esplugas
CHEMICAL ENGINEERING JOURNAL
(2020)
Letter
Medicine, Research & Experimental
Natalia Lopez-Andres
Article
Hematology
Lara Matilla, Carmen Roncal, Jaime Ibarrola, Vanessa Arrieta, Amaia Garcia-Pena, Amaya Fernandez-Celis, Adela Navarro, Virginia Alvarez, Alicia Gainza, Josune Orbe, Victoria Cachofeiro, Guillermo Zalba, Rafael Sadaba, Jose A. Rodriguez, Natalia Lopez-Andres
ARTERIOSCLEROSIS THROMBOSIS AND VASCULAR BIOLOGY
(2020)
Review
Engineering, Environmental
Bernardi Bayarri, Alberto Cruz-Alcalde, Nuria Lopez-Vinent, Maria M. Mico, Carme Sans
Summary: Ozone technology has been evaluated as an effective method for inactivating viruses, including SARS-CoV-2. Research suggests that gaseous ozone can alter the virus envelope as the main reaction pathway for inactivation.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Environmental Sciences
Nuria Lopez-Vinent, Alberto Cruz-Alcalde, Soliu O. Ganiyu, Shailesh Sable, Selamawit Ashagre Messele, Dustin Lillico, James Stafford, Carme Sans, Jaime Gimenez, Santiago Esplugas, Mohamed Gamal El-Din
Summary: Catalytic ozonation using carbon, iron, and peroxide-based catalysts was effective in treating CSO spiked with micropollutants, with carbon-based catalysts showing high adsorption capacity for MPs. Ozonation alone was effective for degrading certain MPs, but catalytic ozonation improved degradation at lower catalyst dosages and inhibited degradation at higher dosages. In all cases, the effluents showed negligible acute toxicity, indicating the suitability of the process for CSO treatment.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Chemistry, Physical
N. Lopez-Vinent, A. Cruz-Alcalde, J. Gimenez, S. Esplugas, C. Sans
Summary: The study found that the stability constant of iron chelates is a key parameter for optimal micropollutant removal, which is influenced by the structure of the chelator. Using mixtures of organic fertilizers can improve the photo-Fenton process and enhance the removal efficiency of micropollutants. The availability of dissolved iron in the mixture is higher, making it suitable for reuse as irrigation water.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Environmental Sciences
N. Lopez-Vinent, A. Cruz-Alcalde, J. Gimenez, S. Esplugas
Summary: Three organic fertilizers and their mixtures were tested as Fe-complexes for micropollutants degradation and E.coli inactivation, with the combination of EDDS + EDTA showing the best performance in achieving a balance between iron precipitation and rate of micropollutants removal.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Nuria Lopez-Vinent, Alberto Cruz-Alcalde, Claudia Lai, Jaime Gimenez, Santiago Esplugas, Carme Sans
Summary: This study investigated the role of sunlight and oxygen in the photo-Fenton process at near neutral pH using five organic fertilizers as iron complexes. The results showed that different iron chelates have different UV absorbance and stability constants, which affect the reaction mechanisms in SMX degradation. The proposed complementary reaction mechanisms involve potential photoexcitation of the iron complex and subsequent oxygen-mediated hydroxyl radical generation reactions.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Education & Educational Research
D. Carrasco, R. Banerjee, N. Lopez-Hornickel, E. Trevino
Summary: Students who are bullied in school often experience negative outcomes, such as lower academic achievement. However, the exact process by which bullying affects academic achievement is not well understood. This study used data from the 2011 Trends in International Mathematics and Science Study (TIMSS) in Chilean schools to examine the indirect effects of bullying on mathematics achievement through school belonging and students' engagement. The results showed that bullying rates in schools predicted differences in mathematics achievement, but these effects were mediated by broader factors such as perceived safety and discipline in the school environment. Notably, the study found that individual experiences of bullying were associated with a weaker sense of belonging to the school as a whole, as well as lower classroom engagement.
STUDIES IN EDUCATIONAL EVALUATION
(2022)
Article
Area Studies
Rosario Undurraga, Natalia Lopez-Hornickel
Summary: This study examines the impact of Chilean government measures during the first year of the COVID-19 pandemic on ten potential beneficiaries through remote semi-structured interviews. The findings reveal an improvised approach, with a patchwork of targeted measures instead of solid gender equity policies, resulting in increased uncertainty and vulnerability. Women faced economic constraints and care responsibilities alone, leading to feelings of sadness and despair. This article highlights the need for urgent social care policies.
BULLETIN OF LATIN AMERICAN RESEARCH
(2023)
Article
Engineering, Environmental
Rodrigo Pereira Cavalcante, Dirce Martins de Oliveira, Lucas de Melo da Silva, Jaime Gimenez, Santiago Esplugas, Silvio Cesar de Oliveira, Renato Falcao Dantas, Carme Sans, Amilcar Machulek Junior
Summary: This study investigates the effectiveness of photocatalysis using TiO2 as a catalyst for the removal of ametryn, showing significant advantages over photolysis, generating over 30 intermediates and determining degradation pathways through the use of different scavengers.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Social Issues
Rosario Undurraga, Natalia Lopez Hornickel
Summary: This qualitative study examines the experience of care work in the labor trajectories of Chilean women, emphasizing the different types of care and their relationships with labor trajectories. It highlights the significant role of care in women's lives and the persistence of traditional gender roles in a cultural system that places the responsibility of care on women.
REVISTA DE ESTUDIOS SOCIALES
(2021)
Article
Chemistry, Physical
Bolun Yu, Denan Li, Qianqian Zhu, Shufan Yao, Lifeng Zhang, Yanshuo Li, Zhenxin Zhang
Summary: This study successfully improved the catalytic activity of a zeolitic octahedral metal oxide by incorporating a single zinc species into its micropore. The zinc incorporation achieved a high ethane conversion rate and ethylene selectivity. Mechanism study showed that the isolated zinc site played a crucial role in activating oxygen and ethane, as well as stabilizing intermediates and transition states.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Ruoqi Liu, Hao Fei, Jian Wang, Ting Guo, Fangyang Liu, Zhuangzhi Wu, Dezhi Wang
Summary: This work successfully synthesized a high-performing S-enriched MoS2 catalyst for electrocatalytic nitrogen reduction reaction (NRR), demonstrating high activity and selectivity. The synergistic effect of the 1T phase and bridging S22- species was shown to play a positive role in NRR performances, and DFT calculations revealed the mechanism behind the improved performance.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Pan Xia, Lele Zhao, Xi Chen, Zhihong Ye, Zhihong Zheng, Qiang He, Ignasi Sires
Summary: This study presents a modified gas-diffusion electrode (GDE) for highly efficient and stable H2O2 electrosynthesis by using trace polymethylhydrosiloxane (PMHS). DFT calculations provide an in-depth understanding of the roles of PMHS functional groups.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Kwangchol Ri, Songsik Pak, Dunyu Sun, Qiang Zhong, Shaogui Yang, Songil Sin, Leliang Wu, Yue Sun, Hui Cao, Chunxiao Han, Chenmin Xu, Yazi Liu, Huan He, Shiyin Li, Cheng Sun
Summary: Different B-doped rGO catalysts were synthesized and their 2e- oxygen reduction reaction (ORR) performance was investigated. It was found that the 2e- ORR selectivity of B-doped rGO was influenced by the B content and oxygen mass transfer conditions. The synthesized catalyst exhibited high 2e- ORR selectivity and was capable of degrading organic pollutants continuously.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Li Lv, Lin Lei, Qi-Wen Chen, Cheng-Li Yin, Huiqing Fan, Jian-Ping Zhou
Summary: Monoclinic phase La2Ti2O7 and orthorhombic phase Bi4Ti3O12 are widely used in photocatalysis due to their layered crystal structure. The electronic structures of these phases play a crucial role in their photocatalytic activity. Heat treatment in a nitrogen atmosphere introduces more oxygen vacancies into the S-scheme heterojunction, leading to enhanced NO removal efficiency.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Choe Earn Choong, Minhee Kim, Jun Sup Lim, Young June Hong, Geon Joon Lee, Keun Hwa Chae, In Wook Nah, Yeomin Yoon, Eun Ha Choi, Min Jang
Summary: In this study, the synergistic effect between argon-plasma-system (AP) and catalysts in promoting the production of reactive species for water remediation was investigated. By altering the oxygen vacancies concentration of CeO2/Bi2O3 catalyst, the production of hydrated electrons was stimulated for PFOA removal. The results showed that the built-in electric field in the Bi/Ce0.43 interface enhanced electron migration and eaq- generation, leading to improved PFOA removal efficiency.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Yushan Wu, Di Xu, Yanfei Xu, Xin Tian, Mingyue Ding
Summary: Efficient synthesis of primary amines from carbonyl compounds was achieved via reductive amination using Ru@NC-Al2O3 as a catalyst, exhibiting high activity and selectivity under mild conditions.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Yilan Jiang, Peifang Wang, Tingyue Chen, Keyi Gao, Yiran Xiong, Yin Lu, Dionysios D. Dionysiou, Dawei Wang
Summary: By controlling the content of Co and Ni in Co1-xNixFe2O4, the production of O-1(2) from H2O2 can be regulated. NiFe2O4, with the lowest lattice distortion degree, can efficiently produce O-1(2) as the dominant reactive oxygen species. The system also exhibits significant resistance to water matrix interference.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Shuai Feng, Donglian Li, Hao Dong, Song Xie, Yaping Miao, Xuming Zhang, Biao Gao, Paul K. Chu, Xiang Peng
Summary: In this study, MoO2/Mo2N heterostructures were prepared by regulating the coordination of Mo atoms. The electrocatalyst exhibits high current density and excellent stability for hydrogen evolution reaction.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Jia-Cheng E. Yang, Min -Ping Zhu, Daqin Guan, Baoling Yuan, Darren Delai Sun, Chenghua Sun, Ming-Lai Fu
Summary: This study successfully modulated the electron configuration and spin state of millimetric metal catalysts by adjusting the support curvature radius. The electronic structure-oriented spin catalysis was found to affect the degradation of pollutants, providing new insights for the design and production of highly active, reusable, and stable catalysts.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Tao Zhong, Su Tang, Wenbin Huang, Wei Liu, Huinan Zhao, Lingling Hu, Shuanghong Tian, Chun He
Summary: In this study, a highly efficient photocatalyst for the elimination of CH3SH was developed by engineering different crystal facets and coupling them with PHI. Cu (111)/PHI exhibited the highest elimination efficiency and showed good stability and reusability. The enhanced surface electron pump effect and effective adsorption mechanisms were revealed through comprehensive characterizations and DFT calculations.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Feifei Yang, Tianyu Zhang, Jiankang Zhao, Wei Zhou, Nicole J. Libretto, Jeffrey T. Miller
Summary: A Ni3Sn intermetallic nano particle was found to have geometrically isolated Ni sites that could selectively cleave C-O bonds in biomass derivatives. This nano particle showed high activity and selectivity towards 2-methylfuran, unlike Ni nanoparticles that produced other unwanted products derived from the aromatic rings.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)
Article
Chemistry, Physical
Lulu Qiao, Di Liu, Anquan Zhu, Jinxian Feng, Pengfei Zhou, Chunfa Liu, Kar Wei Ng, Hui Pan
Summary: This study reveals that surface evolution plays a crucial role in enhancing the electrocatalytic performance of transition metal oxides for electrochemical nitrate reduction reaction (e-NO3RR). Incorporating nickel into Co3O4 can promote surface reconstruction and improve the adsorption of intermediates and reduce energy barriers, leading to enhanced catalytic performance. The reconstructed cobalt-nickel hydroxides (CoyNi1_y(OH)2) on the catalyst's surface serve as the active phase.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)
Article
Chemistry, Physical
Xinyu Song, Yang Shi, Zelin Wu, Bingkun Huang, Xinhao Wang, Heng Zhang, Peng Zhou, Wen Liu, Zhicheng Pan, Zhaokun Xiong, Bo Lai
Summary: This study explores the discriminative activities and mechanisms for activation of O-O bond in peroxy compounds via single-atom catalysts (SACs) with higher coordination numbers (M-N5). The atomic catalyst (Fe-SAC) with Fe-N5 as the active center was constructed, effectively activating peroxymonosulfate (PMS), peroxydisulfate (PDS), and hydrogen peroxide (H2O2). The study demonstrates the degradation efficiencies of acyclovir are related to the O-O bond length in different peroxy compounds, and reveals the discriminative mechanisms for activation of O-O bond in different Fenton-like systems.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)
Article
Chemistry, Physical
Yangzhuo He, Hong Qin, Ziwei Wang, Han Wang, Yuan Zhu, Chengyun Zhou, Ying Zeng, Yicheng Li, Piao Xu, Guangming Zeng
Summary: A dual-metal-organic framework (MOF) assisted strategy was proposed to construct a magnetic Fe-Mn oxycarbide anchored on N-doped carbon for peroxymonosulfate (PMS) activation. The FeMn@NC-800 catalyst exhibited superior activity with almost 100% degradation of sulfamethazine (SMZ) in 30 minutes. The study provided insights for the rational design of high-performance heterogeneous catalysts and proposed a novel nonradical-based catalytic oxidation for environmental cleaning.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)