Article
Optics
Jacob J. Ewing, Cheyenne Lynsky, Matthew S. Wong, Feng Wu, Yi Chao Chow, Pavel Shapturenka, Michel Iza, Shuji Nakamura, Steven P. Denbaars, James S. Speck
Summary: This article studied the method of achieving highly efficient long-wavelength InGaN LEDs through V-defect engineering, which utilized naturally occurring V-defects for lateral injection and improved the external quantum efficiency.
Article
Multidisciplinary Sciences
Po-Wei Chen, Po-Wen Hsiao, Hsuan-Jen Chen, Bo-Sheng Lee, Kai-Ping Chang, Chao-Chun Yen, Ray-Hua Horng, Dong-Sing Wuu
Summary: The mechanism of carrier recombination in downsized mu-LED chips was investigated, showing that the smallest chip size exhibited the highest ideality factor due to carrier recombination in high-defect-density zones. The use of a passivation layer and a maskless technology improved the performance and efficiency of the mu-LED chips. The blue-shift phenomenon in the electroluminescence spectrum was attributed to carrier screening and band filling effects, with high EQE values observed in the high current density region for the 10 x 10 μm(2) mu-LED chip.
SCIENTIFIC REPORTS
(2021)
Article
Chemistry, Inorganic & Nuclear
Jianbang Zhou, Pengyun Chen, Junhao Li, Mingming Yang, Wei Jiang, Qiuhong Zhang, Haiyong Ni, Jiansheng Huo
Summary: In this study, a series of Cr3+-activated near-infrared (NIR) phosphors with broadband emission and tunable luminescence properties were designed and prepared. The luminescence characteristics of the materials could be controlled by adjusting the crystal field strength. One of the phosphors exhibited high luminous efficiency even at high temperature, and the thermal stability was attributed to the structural confinement and the electron-phonon coupling effect.
DALTON TRANSACTIONS
(2022)
Article
Physics, Applied
Abu Bashar Mohammad Hamidul Islam, Tae Kyoung Kim, Dong-Soo Shin, Jong-In Shim, Joon Seop Kwak
Summary: This study investigates the effect of current stress on InGaN/GaN multiple-quantum-well flip-chip blue micro light-emitting diodes (mu-LEDs) and reveals the mechanisms of defect aggregation and generation that cause changes in the optoelectronic performance of the devices. The aging test shows that the improvement in crystal quality due to defect aggregation initially enhances the light output power and external quantum efficiency (EQE), but the generation of sidewall point defects eventually leads to performance degradation. The findings highlight the importance of both defect aggregation and generation in understanding the degradation mechanisms of mu-LEDs.
APPLIED PHYSICS LETTERS
(2022)
Article
Chemistry, Physical
Seok Joo Yang, Kang Wang, Yanqi Luo, Jee Yung Park, Hanjun Yang, Aidan H. Coffey, Ke Ma, Jiaonan Sun, Sarah Wieghold, Chenhui Zhu, Letian Dou
Summary: Quasi-2D halide perovskites are promising materials for LEDs due to their tunability and halide alloy formation. However, phase separations and low EQEs are still issues. This study compares different cations and shows that extended and twisted conjugated cations can suppress these issues, leading to high EQEs and controllable emission wavelengths. The insights from this work will guide the future design of materials and devices.
ACS ENERGY LETTERS
(2023)
Article
Engineering, Environmental
Tatiana Matiazzo, Kishor Ramaswamy, Vitor J. P. Vilar, Natan Padoin, Cintia Soares
Summary: The radiation field in a meso-scale NETmix photoreactor for gaseous streams purification was evaluated using a Monte Carlo based algorithm with Ansys Speos software. The reactor has 18 high power UV LEDs and utilizes a thin TiO2 -P25 catalyst film for front-side and back-side illumination mechanisms. The study considered the reflection properties of the catalyst and variations in light incident angles, with simulations validated by experimental data showing a relative error of 2.3% for BSI and 7.0% for FSI.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Optics
Katarzyna Pieniak, Witold Trzeciakowski, Grzegorz Muziol, Anna Kafar, Marcin Siekacz, Czeslaw Skierbiszewski, Tadeusz Suski
Summary: The study examined electroluminescence from In0.17Ga0.83N/GaN quantum wells of LEDs and LDs, finding a transition from ground-states recombination to excited states recombination with increasing QW width. The effect is accompanied by partial or complete screening of the built-in electric field with increasing driving current, which was studied using a high pressure method. Investigations were supported by simulations of the variation with driving current of electron and hole wavefunctions overlap affecting the recombination channel and built-in electric field.
Article
Engineering, Environmental
Decai Huang, Sisi Liang, Dejian Chen, Jie Hu, Kunyuan Xu, Haomiao Zhu
Summary: A highly efficient near-infrared luminescent fluoride garnet phosphor with excellent thermal stability and high PL quantum yield was successfully synthesized. By combining with a blue LED chip, a NIR pc-LED with significant radiant flux was fabricated. This new phosphor shows promising potential for a wide range of applications in near-infrared spectroscopy.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Optics
Xiaoyan Liu, Zexing Yuan, Gufan Zhou, Pan Yin, Xinyi Shan, Langyi Tao, Jinghao Yu, Xugao Cui, Pengfei Tian
Summary: This paper proposes and fabricates a micro-current spreading layer (mCSL)-confined micro-LED, and demonstrates its effect on the efficiency of LED. The study shows that the mCSL can enhance the efficiency of the micro-LED at high current densities. Furthermore, the efficiency decreases at low current densities but increases at high current densities as the size of the mCSL decreases.
APPLIED PHYSICS B-LASERS AND OPTICS
(2022)
Review
Materials Science, Multidisciplinary
Ying Tang, Hailong Wu, Wenqian Cao, Yuanjing Cui, Guodong Qian
Summary: The review focuses on the design strategies of achieving high-performance phosphors using MOFs, highlighting the doping of luminescent lanthanide ions, organic ligands, and diverse luminescent guest species. The representative advances in the development of MOF phosphors are presented, offering guidance and reference for future research in this field.
ADVANCED OPTICAL MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Jevgenij Chmeliov, Karim Elkhouly, Rokas Gegevicius, Lukas Jonusis, Andrius Devizis, Andrius Gelzinis, Marius Franckevicius, Iakov Goldberg, Johan Hofkens, Paul Heremans, Weiming Qiu, Vidmantas Gulbinas
Summary: Perovskite light-emitting diodes (PeLEDs) have reached up to about 20% external quantum efficiency (EQE), showing promise for display and lighting applications. However, unresolved issues regarding stability, operation in non-stationary regimes, and efficiency roll-off at high current densities persist. The authors address some of these issues in PeLEDs based on MAPbI(3) perovskite, analyzing the electroluminescence (EL) and current dynamics at different temperatures to explain the complex dynamics observed on different time scales. Mathematical modeling of ion motion and related processes helped to reproduce the EL and current dynamics and uncover the processes governing PeLED operation.
ADVANCED OPTICAL MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Ziquan Guo, Zhihui Li, Shouqiang Lai, Xiaoyang Hou, Xiaotong Fan, Chenming Zhong, Yue Lin, Guolong Chen, Guoheng Qin, Tao Gao, Nuoyi Fu, Yuan Shi, Xinqin Liao, Yi Lin, Yijun Lu, Weijie Guo, Zhong Chen
Summary: The temperature-dependent external quantum efficiency (EQE) droop of AlGaN-based UVC-LEDs with different Al contents at wavelengths of 265 nm, 275 nm, 280 nm, and 285 nm was comprehensively investigated. The recombination mechanisms in these UVC-LED samples were analyzed using the modified ABC model, revealing that the contribution of Shockley-Read-Hall recombination exceeds those of Auger recombination and carrier leakage at low electrical-current levels. At high electrical-current levels, Auger recombination and carrier leakage jointly dominate the EQE droop phenomenon. Experimental investigation of the inactivation efficiencies of various UVC light sources against Escherichia coli provides a technical reference for combating COVID-19.
Article
Nanoscience & Nanotechnology
Liangliang Shi, Shuming Chen
Summary: Top-emitting quantum-dot light-emitting diodes (TQLEDs) with improved electrode materials and scattering layer demonstrate high efficiency, color stability, and are ideal candidates for QLED displays.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Optics
Zhefu Liao, Zhenxing Lv, Ke Sun, Shengjun Zhou
Summary: We propose a thermally stable and high-reflectivity Ni/Rh/Ni/Au p-type electrode for AlGaN-based DUV flip-chip LEDs. Compared to the traditional Ni/Au electrode, the proposed electrode exhibits remarkable thermal stability, higher reflectivity, and lower contact resistivity, leading to increased external quantum efficiency and wall-plug efficiency of the DUV FCLEDs.
Article
Physics, Applied
Zhen Huang, Renchun Tao, Duo Li, Zexing Yuan, Tai Li, Zhaoying Chen, Ye Yuan, Junjie Kang, Zhiwen Liang, Qi Wang, Pengfei Tian, Bo Shen, Xinqiang Wang
Summary: In this work, a method is proposed to improve the modulation bandwidth of green mu-LEDs by enhancing p-type conductivity. The polarization-induced p-type doping with graded AlGaN significantly enhances the conductivity of the p-type layer, leading to improved light output power and modulation bandwidth.
APPLIED PHYSICS LETTERS
(2022)
Article
Engineering, Chemical
T. Sampedro, C. Tristan, L. Gomez-Coma, J. Rioyo, M. Sainz, I Ortiz, R. Ibanez
Summary: Developing efficient upgrading alternatives of treated waters by recovering energy within the treatment process is a promising way to alleviate pressure on natural water basins, achieve freshwater savings, and decarbonize the water industry.
Article
Chemistry, Medicinal
Cristina Gonzalez-Fernandez, Christoph Ohlknecht, Matthias Diem, Yerko Escalona, Eugenio Bringas, Gabriel Moncalian, Chris Oostenbrink, Inmaculada Ortiz
Summary: The development of new strategies to combat Gram-negative bacterial infections, particularly those resistant to antibiotics, is crucial due to the global increase in antibiotic resistance. This study focuses on the use of extracorporeal blood cleansing devices with affinity sorbents for capturing bacterial lipopolysaccharide (LPS), which stimulates an exacerbated immune response during infection. Molecular dynamics simulations were conducted to investigate the interaction mechanism between an anti-LPS factor (ALF) isoform 3 from Penaeus monodon (AL3) and lipid A (LA, a component of LPS). The results revealed the binding mechanism and key interacting residues, which can guide the design of LPS-sequestrating molecules for blood detoxification.
JOURNAL OF CHEMICAL INFORMATION AND MODELING
(2023)
Article
Environmental Sciences
Deva Pelayo, Maria J. Rivero, GermAn Santos, Pedro Gomez, Inmaculada Ortiz
Summary: Disinfection is commonly used in wastewater treatment plants to reduce the presence of pathogens. However, the emergence of micropollutants has become a serious concern, and it is worth investigating tertiary treatments that can remove both pathogens and micropollutants. UV-C photo-degradation processes are widely used for disinfection due to their simplicity and easy operation, and they have shown potential for the removal of contaminants. This study compared the performance of several photo-degradation technologies for the removal of two targeted micropollutants, and found that UV-C photolysis and UV-C photocatalysis were the most suitable technologies for degradation.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Chemistry, Multidisciplinary
Kevin Fernandez-Caso, Ailen Pena-Rodriquez, Jose Solla-Gullon, Vicente Montiel, Guillermo Diaz-Sainz, Manuel Alvarez-Guerra, Angel Irabien
Summary: CO2 electroreduction is a promising way to reduce CO2 emissions and produce valuable products. This study explores the coupling of CO2 electroreduction to formate with glycerol electrooxidation to high-added value products. The results show significant progress in both cathodic formate production and anodic dihydroxyacetone production.
JOURNAL OF CO2 UTILIZATION
(2023)
Review
Chemistry, Physical
Kevin Fernandez-Caso, Guillermo Diaz-Sainz, Manuel Alvarez-Guerra, Angel Irabien
Summary: The study of electrochemical CO2 reduction for obtaining formate (HCOO-) or formic acid (HCOOH) has gained significant attention as a promising technology. Recent years have seen an increase in research approaches focusing on continuous-mode operation for practical implementation. This Focus Review provides a comprehensive discussion of studies on continuous electroreduction of CO2 to HCOO-/HCOOH, considering different process design features and assessing their performance, including energy consumption.
ACS ENERGY LETTERS
(2023)
Article
Biochemistry & Molecular Biology
Carmen Barquin, Aranza Vital-Grappin, Izumi Kumakiri, Nazely Diban, Maria J. Rivero, Ane Urtiaga, Inmaculada Ortiz
Summary: This study demonstrates the photocatalytic degradation of organic pollutants in water using TiO2 and TiO2/Ag membranes immobilized on ceramic porous tubular supports. The membranes showed high water fluxes and low rejection rates against model pollutants. The photocatalytic performance for the degradation of DCA was similar to suspended TiO2 particles, but significantly improved when the aqueous solution permeated through the pores of the photocatalytic membrane.
Article
Biochemistry & Molecular Biology
Joost Veerman, Lucia Gomez-Coma, Alfredo Ortiz, Inmaculada Ortiz
Summary: Salinity gradient energy, especially using reverse electrodialysis (RED) technology, has attracted attention as a renewable energy source. However, the influence of divalent ions on the technology's performance has not been extensively studied. This study focuses on estimating the resistance of RED membranes in water flows containing divalent ions, both theoretically and experimentally. Results show that calcium and magnesium ions have a greater impact on energy generation compared to sulfate.
Article
Biochemistry & Molecular Biology
Tamara Sampedro, Carolina Tristan, Lucia Gomez-Coma, Marcos Fallanza, Inmaculada Ortiz, Raquel Ibanez
Summary: This study assesses the scale-up of reverse electrodialysis (RED) for the harvesting of renewable salinity gradient energy (SGE) in two selected coastal wastewater treatment plants in Europe. The research utilizes an optimization model to quantify the net present value (NPV), and finds that the industrial scale-up of SGE-RED is feasible in Ierapetra, Greece, due to higher flow rates and temperature. However, in Comillas, Spain, it could be cost-competitive with conventional alternatives under certain conditions.
Article
Pharmacology & Pharmacy
Belen Garcia-Merino, Eugenio Bringas, Inmaculada Ortiz
Summary: In recent decades, there has been increasing interest in using functionalized mesoporous nanomaterials as stimuli-responsive drug carriers. However, there is currently no standardized methodology to evaluate their performance. This study proposes a novel microfluidic platform as a new, simple, and cost-effective alternative for testing the behavior of nanocarriers. The platform was used to assess the performance of amino-functionalized MCM41 nanoparticles, which demonstrated a pH-responsive mechanism.
INTERNATIONAL JOURNAL OF PHARMACEUTICS
(2023)
Article
Chemistry, Multidisciplinary
Javier Fernandez-Gonzalez, Marta Rumayor, Antonio Dominguez-Ramos, Angel Irabien, Inmaculada Ortiz
Summary: The development of emerging decarbonization technologies requires advanced tools such as Life Cycle Assessment (LCA) for decision-making and promoting sustainability. Most environmental studies in this field have focused on carbon footprint and have not explored global sustainability implications. The recently proposed Planetary Boundaries (PBs) methodology can be used to determine the distance to the ideal reference state. This study highlights the role of LCA in developing emerging technologies and showcases its potential through a case study.
Article
Engineering, Environmental
Jose Antonio Abarca, Guillermo Diaz-Sainz, Ivan Merino-Garcia, Garikoitz Beobide, Jonathan Albo, Angel Irabien
Summary: An automated spray pyrolysis technique coupled with a plasma surface treatment was used to fabricate Bi-based gas diffusion electrodes, improving the electroreduction of CO2 to formate. The optimal fabrication conditions were determined by evaluating three fabrication parameters. The results showed good reproducibility of the fabrication method and higher formate rates compared to manual airbrushing. Plasma treatment also increased formate concentration. This research provides insights into more efficient methods for CO2 electroreduction electrode manufacturing and brings this technology closer to an industrial scale.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Environmental
Sophie Schroder, Inmaculada Ortiz, Ma-Fresnedo San-Roman
Summary: The COVID-19 pandemic has led to increased consumption of pharmaceuticals, resulting in higher levels of these drugs in wastewater and the environment. Electrochemical oxidation (ELOX) is an effective remediation technology commonly used to eliminate pharmaceuticals. This study focuses on the application of ELOX to remove drugs used in the fight against COVID-19 and assesses the degradation rate and the formation of toxic by-products. The presence of highly toxic by-products, such as PCDD/Fs, and their precursors was observed, highlighting the importance of selecting proper oxidation processes and variables to minimize toxicity.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Rehabilitation
Lauren Rosen, Teresa Plummer, Andrina Sabet, Michelle L. L. Lange, Roslyn Livingstone
Summary: This paper updates the RESNA Position on the Application of Power Wheelchairs for Pediatric Users with current and additional scientific literature. It provides clinical applications and evidence supporting the use of power mobility for young children, assisting practitioners in decision-making and justification. RESNA states that age, limited vision or cognition, behavioral issues, and the ability to walk or propel a manual wheelchair should not be used as discriminatory factors against providing power mobility for children. RESNA recommends early utilization of power mobility for children with mobility limitations to promote integration, development, independence, and participation.
ASSISTIVE TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Andrea Arguillarena, Maria Margallo, Axel Arruti-Fernandez, Javier Pinedo, Pedro Gomez, Inmaculada Ortiz, Ane Urtiaga
Summary: The selective zinc separation and purification of spent pickling acids by non-dispersive solvent extraction (NDSX) in hollow fiber membrane contactors (HFMCs) was successfully demonstrated on a pilot scale. The resulting iron chloride solution was valorized as a hydrogen sulfide suppressor in wastewater treatment. Additionally, the NDSX mathematical model was validated using pilot scale experimental data, providing a design tool for process scale-up and industrial implementation.
Article
Engineering, Environmental
Guillermo Diaz-Sainz, Kevin Fernandez-Caso, Tiago Lagarteira, Sofia Delgado, Manuel Alvarez-Guerra, Adelio Mendes, Angel Irabien
Summary: CO2 electroreduction to formic acid and formate has attracted significant research attention. This study focuses on finding low-cost and stable materials that can compete with traditional Pt-based electrodes. The use of hand-made NiO-based anodes in the continuous CO2 electroreduction process has shown excellent performance.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Environmental Sciences
Toshimi Nakajima, Mao Kuragano, Makoto Yamada, Ryo Sugimoto
Summary: This study compared the contribution of submarine groundwater discharge (SGD) to river nutrient budgets at nearshore and embayment scales, and found that SGD-derived nutrients become more important at larger spatial scales.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Fan Liu, Lei Zhang, Chongyang Zhang, Ziguang Chen, Jingguang Li
Summary: NO2 emissions from wall-mounted gas stoves used for household heating have become a significant source of indoor pollution in Chinese urban areas. The high indoor concentration of NO2 poses potential health risks to residents. It is urgently necessary to establish relevant regulations and implement emission reduction technologies to reduce NO2 emissions from wall-mounted gas stoves.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Letter
Environmental Sciences
Hans Peter H. Arp, Raoul Wolf, Sarah E. Hale, Sivani Baskaran, Juliane Gluege, Martin Scheringer, Xenia Trier, Ian T. Cousins, Harrie Timmer, Roberta Hofman-Caris, Anna Lennquist, Andre D. Bannink, Gerard J. Stroomberg, Rosa M. A. Sjerps, Rosa Montes, Rosario Rodil, Jose Benito Quintana, Daniel Zahn, Herve Gallard, Tobias Mohr, Ivo Schliebner, Michael Neumann
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Philomina Onyedikachi Peter, Binessi Edouard Ifon, Francois Nkinahamira, Kayode Hassan Lasisi, Jiangwei Li, Anyi Hu, Chang-Ping Yu
Summary: This study investigates the relationship between dissolved organic matter (DOM) and Rare Earth Elements (REEs) in sediments from Yundang Lagoon, China. The results show four distinct fluorescent components, with protein-like substances being the most prevalent. Additionally, the total fluorescence intensity and LREE concentrations exhibit a synchronized increase from Outer to Inner to Songbai Lake core sediments. The findings demonstrate a strong correlation between DOM content and pollution levels.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Surya Gupta, Pasquale Borrelli, Panos Panagos, Christine Alewell
Summary: The objective of this study is to incorporate soil hydraulic properties into the erodibility factor (K) of USLE-type models. By modifying and improving the existing equations for soil texture and permeability, the study successfully included information on saturated hydraulic conductivity (Ksat) into the calculation of K factor. Using the Random Forest machine learning algorithm, two independent K factor maps with different spatial resolutions were generated. The results show that the decrease in K factor values has a positive impact on the modeling of soil erosion rates.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Jesmin Akter, Wendy J. M. Smith, Yawen Liu, Ilho Kim, Stuart L. Simpson, Phong Thai, Asja Korajkic, Warish Ahmed
Summary: The choice of workflow in wastewater surveillance has a significant impact on SARS-CoV-2 concentrations, while having minimal effects on HF183 and no effect on HAdV 40/41 concentrations. Certain components in the workflow can be interchangeable, but factors such as buffer type, chloroform, and homogenization speed can affect the recovery of viruses and bacteria.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Yu Luo, Xueting Yang, Diwei Wang, Hongmei Xu, Hongai Zhang, Shasha Huang, Qiyuan Wang, Ningning Zhang, Junji Cao, Zhenxing Shen
Summary: Atmospheric PM2.5, which can generate reactive oxygen species (ROS), is associated with cardiorespiratory morbidity and mortality. The study found that both the mass concentration of PM2.5 and the DTT activity were higher during the heating season than during the nonheating season. Combustion sources were the primary contributors to DTT activity during the heating season, while secondary formation dominated during the nonheating season. The study also revealed that biomass burning had the highest inherent oxidation potential among all sources investigated.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Erin L. Murphy, Leah R. Gerber, Chelsea M. Rochman, Beth Polidoro
Summary: Plastic pollution has devastating consequences for marine organisms. This study uses a trait-based framework to develop a vulnerability index for marine mammals, seabirds, and sea turtles in Hawai'i. The index ranks 63 study species based on their vulnerability to macroplastic pollution, providing valuable information for species monitoring and management priorities.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Kenji Maurice, Amelia Bourceret, Sami Youssef, Stephane Boivin, Liam Laurent-Webb, Coraline Damasio, Hassan Boukcim, Marc-Andre Selosse, Marc Ducousso
Summary: Growing pressure from climate change and agricultural land use is destabilizing soil microbial community interactions. Little is known about microbial community resistance and adaptation to disturbances, hindering our understanding of recovery latency and implications for ecosystem functioning. This study found that anthropic disturbance and natural disturbance have different effects on the topology and stability of soil microbial networks.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Yunhao Li, Yali Feng, Haoran Li, Yisong Yao, Chenglong Xu, Jinrong Ju, Ruiyu Ma, Haoyu Wang, Shiwei Jiang
Summary: Deep-sea mining poses a serious threat to marine ecosystems and human health by disturbing sediment and transmitting metal ions through the food chain. This study developed a new regenerative adsorption material, OMN@SA, which effectively removes metal ions. The adsorption mechanism and performance of the material for metal ion fixation were investigated.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Antonio Medici, Margherita Lavorgna, Marina Isidori, Chiara Russo, Elena Orlo, Giovanni Luongo, Giovanni Di Fabio, Armando Zarrelli
Summary: Valsartan, a widely used antihypertensive drug, has been detected in high concentrations in surface waters due to its unchanged excretion and incomplete degradation in wastewater treatment plants. This study investigated the degradation of valsartan and identified 14 degradation byproducts. The acute and chronic toxicity of these byproducts were evaluated in key organisms in the freshwater trophic chain.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Jiang Lin, Lianbao Chi, Qing Yuan, Busu Li, Mingbao Feng
Summary: This study investigated the photodegradation behavior and product formation of two representative pharmaceuticals in simulated estuary water. The study found that the formed transformation products of these pharmaceuticals have potential toxicity on marine organisms, including oxidative stress and damage to cellular components.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Hua Fang, Dongdong Jiang, Ye He, Siyi Wu, Yuehong Li, Ziqi Zhang, Haoting Chen, Zixin Zheng, Yan Sun, Wenxiang Wang
Summary: This study revealed that exposure to lower levels of air pollutants led to decreased pregnancy rates, with PM10, NO2, SO2, and CO emerging as the four most prominent pollutants. Individuals aged 35 and above exhibited heightened susceptibility to pollutants.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Ali Shaan Manzoor Ghumman, Rashid Shamsuddin, Amin Abbasi, Mohaira Ahmad, Yoshiaki Yoshida, Abdul Sami, Hamad Almohamadi
Summary: In this study, inverse vulcanized polysulfides (IVP) were synthesized by reacting molten sulfur with 4-vinyl benzyl chloride, and then functionalized using N-methyl D-glucamine (NMDG). The functionalized IVP showed a high mercury adsorption capacity and a machine learning model was developed to predict the amount of mercury removed. Furthermore, the functionalized IVP can be regenerated and reused, providing a sustainable and cost-effective adsorbent.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Rita Bonfiglio, Renata Sisto, Stefano Casciardi, Valeria Palumbo, Maria Paola Scioli, Erica Giacobbi, Francesca Servadei, Gerry Melino, Alessandro Mauriello, Manuel Scimeca
Summary: This study investigated the presence of aluminum in human colon cancer samples and its potential association with biological processes involved in cancer progression. Aluminum was found in tumor areas of 24% of patients and was associated with epithelial to mesenchymal transition (EMT) and cell death. Additional analyses revealed higher tumor mutational burden and mutations in genes related to EMT and apoptosis in aluminum-positive colon cancers. Understanding the molecular mechanisms of aluminum toxicity may improve strategies for the management of colon cancer patients.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
