Article
Chemistry, Physical
Yasaman Khaksarfard, Ahmad Bagheri, Amir Abbas Rafati
Summary: In this study, two methods of surfactant modification were employed to remove diclofenac sodium (DFS) from aqueous solution using surfactant-modified clinoptilolite zeolite. The synergistic effects of pure cationic surfactant (CTAC) and mixed surfactants of CTAC + Triton-X100 (TX100) were determined and an optimum ratio was identified. The surface of clinoptilolite was modified with the mixed surfactants for the adsorption of DFS. Characterization of the modified zeolites and analysis of the adsorption data were conducted using various techniques and models.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Environmental Sciences
Alla P. Toropova, Andrey A. Toropov
Summary: Risk assessment of toxicants is often based on experiments with single substances, but in natural ecosystems toxicity typically results from exposure to mixtures of toxicants. A QSAR-based approach can effectively assess the joint effects in binary mixtures, with the proposed method showing good validity in predicting toxicity values.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Environmental Sciences
Sarra Karoui, Rim Ben Arfi, Maria J. Fernandez-Sanjurjo, Avelino Nunez-Delgado, Achraf Ghorbal, Esperanza Alvarez-Rodriguez
Summary: The study synthesized and characterized a reed-based enhanced adsorbent (BBR), optimized its efficiency for the removal of OTC and Cd(II), and elucidated the biosorption mechanisms. The results showed the BBR beads to be a cost-effective and efficient adsorbent with significant socioeconomic and environmental relevance.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Ecology
Yusuke Oda, Yuichi Miyabara
Summary: There are growing concerns about the indirect effects of aquatic contaminants on biological interactions. This study investigates the influence of sodium octyl sulfate (SOS) on the growth, morphology, and feeding rates of green algae (Desmodesmus subspicatus) and three species of zooplankton (Daphnia galeata, Bosmina longirostris, and Bosmina fatalis). The results show that SOS induces colony formation in the algae and reduces feeding rates in Daphnia and Bosmina fatalis when they consume colonial algae. The sensitivity to prey coloniality varies among the zooplankton species. These findings provide insights into the impact of chemically interfered colony formation on population dynamics and community structures.
Article
Chemistry, Analytical
Rafia Sarfraz, Mehwish Taneez, Sabahat Sardar, Lubna Danish, Abdul Hameed
Summary: Desmodesmus subspicatus, a type of microalgae, has shown potential for wastewater treatment by effectively reducing COD, BOD, ammonia, nitrate, and phosphate levels. The study suggests that D. subspicatus has the ability to remediate wastewater under photoautotrophic conditions.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
(2023)
Article
Engineering, Chemical
Dingeman L. H. van der Haven, Frederik H. Ortoft, Kaisa Naelapaa, Ioannis S. Fragkopoulos, James A. Elliott
Summary: Despite the challenges in formulating tablets due to their dependence on powder composition and compaction process details, powder compaction simulations using the finite element method (FEM) and density-dependent Drucker-Prager Cap model can aid in the design process. An automated parameterisation workflow was developed and validated using experimental powder mixtures. The results showed that FEM simulations accurately reproduced experimental compaction curves, and a mixing methodology was developed to estimate parameters of mixtures using only pure-component parameters as input.
Article
Biochemical Research Methods
Ling Luo, Shankai Yan, Po-Ting Lai, Daniel Veltri, Andrew Oler, Sandhya Xirasagar, Rajarshi Ghosh, Morgan Similuk, Peter N. Robinson, Zhiyong Lu
Summary: The study proposed a hybrid method of combining dictionary and machine learning approaches to automatically recognize phenotype concepts in unstructured biomedical text, achieving improved performance compared to previous methods. By using concepts and synonyms from HPO to construct a dictionary and create a distantly supervised training dataset for machine learning, along with training a cutting-edge deep learning model, the method successfully classified candidate phrases into concept labels. Experiments on HPO and MEDIC datasets demonstrated competitive performance without requiring manually annotated training data.
Article
Multidisciplinary Sciences
R. Tucker Sprenkle, L. G. Silvestri, M. S. Murillo, S. D. Bergeson
Summary: This study validates the assumptions and capabilities of simulations for ion-ion temperature relaxation in strongly coupled Coulomb systems, and invalidates theoretical models in this regime.
NATURE COMMUNICATIONS
(2022)
Article
Microbiology
Chijioke Nwoye Eze, Innocent Okonkwo Ogbonna, Hideki Aoyagi, James Chukwuma Ogbonna
Summary: This study investigated the impact of different organic carbon sources on the growth and bio-oil accumulation of an oleaginous microalga. Glucose and glycerol supported higher growth rates and lipid productivities compared to other carbon sources. The mixture of glucose and glycerol at optimal concentrations resulted in the highest lipid productivity.
ARCHIVES OF MICROBIOLOGY
(2022)
Article
Chemistry, Physical
Jiazheng Tan, Nasser D. Afify, Carlos A. Ferreiro-Rangel, Xianfeng Fan, Martin B. Sweatman
Summary: The equilibrium cluster fluid state of a symmetric binary mixture of particles with short-ranged attractive and long-ranged repulsive interactions was studied through Monte Carlo simulations. The clustering behavior of the system was found to be controlled by the cross-interaction between the two types of particles. Different levels of cross-attraction led to different clustering behaviors, from independent giant clusters to composite clusters.
JOURNAL OF CHEMICAL PHYSICS
(2021)
Article
Chemistry, Physical
Samuel Lopez-Godoy, Pedro Diaz-Leyva, Anna Kozina
Summary: This review summarizes the current knowledge about the phase behavior of binary mixtures of spherical colloids with different inter-particle interactions, and compares experimental work with theoretical predictions. Several open questions are outlined in the conclusions.
ADVANCES IN COLLOID AND INTERFACE SCIENCE
(2022)
Article
Mechanics
Ruben Gomez Gonzalez, Nagi Khalil, Vicente Garzo
Summary: The Mpemba effect is observed in a molecular binary mixture in contact with a thermal reservoir, where initial temperature differences can lead to the emergence of this effect. The interaction between the gaseous particles of the mixture and the thermal reservoir is modeled through a viscous drag force and a stochastic Langevin-like term. The results are theoretically analyzed and validated through computer simulations, showing agreement between theory and simulations.
Article
Environmental Sciences
Angel Merida-Ortega, Stephen J. Rothenberg, Mariano E. Cebrian, Lizbeth Lopez-Carrillo
Summary: This study compares the individual concentrations and mixtures of metals in women with and without BC. The results show that different metals have different effects on BC.
ENVIRONMENTAL RESEARCH
(2022)
Article
Physics, Fluids & Plasmas
Goncalo Paulo, Mykola Tasinkevych
Summary: Synchronized behavior in a system of coupled dynamic objects is a fascinating example of cooperative phenomena, which can be suppressed by introducing contrarian oscillators. The mobility of oscillators and the presence of heterogeneous interactions both impact synchronization dynamics.
Article
Physics, Fluids & Plasmas
Joseph M. Monti, Gary S. Grest
Summary: Explicit simulations of highly size-dispersed particle mixtures face numerical challenges, but recent algorithmic developments have improved efficiency. Molecular dynamics simulations were used to study the interaction between large and small particles. The results confirm previous predictions and reveal new insights into the influence of small particle solvents on near-contact structures.
Article
Chemistry, Physical
Martin Reli, Ivana Troppova, Marcel Sihor, Jiri Pavlovsky, Petr Praus, Kamila Koci
APPLIED SURFACE SCIENCE
(2019)
Article
Soil Science
Jiri Kucerik, Karel Svaton, Stanislav Maly, Martin Brtnicky, Helena Dolezalova Weissmannova, Michael S. Demyan, Christian Siewert, David Tokarski
EUROPEAN JOURNAL OF SOIL SCIENCE
(2020)
Article
Chemistry, Physical
Kamila Koci, Martin Reli, Ivana Troppova, Marcel Sihor, Tereza Bajcarova, Michal Ritz, Jiri Pavlovsky, Petr Praus
Article
Soil Science
David Tokarski, Martin Wiesmeier, Helena Dolezalova Weissmannova, Karsten Kalbitz, Michael Scott Demyan, Jiri Kucerik, Christian Siewert
Article
Optics
M. Michalska, J. B. Jasinski, J. Pavlovsky, P. Zurek-Siworska, A. Sikora, P. Golebiewski, A. Szysiak, V Matejka, J. Seidlerova
Summary: In this study, nanocrystalline lanthanum orthovanadate co-doped with Eu3+ was successfully synthesized through solid-state synthesis. The relationship between the structural, morphological, and photoluminescent properties of LaVO4 was examined for the first time, providing valuable insights into the characteristics of this material. Characterization techniques including XRD, Raman spectroscopy, XPS, FTIR, PL, UV-Vis DRS, SEM, and AFM were employed to investigate the synthesized powders.
JOURNAL OF LUMINESCENCE
(2021)
Article
Geochemistry & Geophysics
Marta Valaskova, Kamila Koci, Jana Madejova, Lenka Matejova, Jiri Pavlovsky, Beatriz Trindade Barrocas, Katerina Klemencova
Summary: This study investigates the photocatalytic activity of vermiculite and α-Fe2O3 nanoparticles/vermiculite composites for methanol decomposition and hydrogen production. The results show that both materials exhibit high photocatalytic performance, with the Fe/V-700 composite achieving the highest hydrogen yield after 4 hours of irradiation.
Article
Materials Science, Multidisciplinary
Vlastimil Matejka, Radim Skuta, Krystof Foniok, Vlastimil Novak, Daniel Cvejn, Alexandr Martaus, Monika Michalska, Jiri Pavlovsky, Petr Praus
Summary: This study describes the doping of graphitic carbon nitride (g-C3N4) with phosphorus through heat treatment, and investigates the influence of phosphorus content on the photocatalytic degradation activity.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Multidisciplinary Sciences
Petr Praus, Lenka Rehackova, Jakub Cizek, Aneta Smykalova, Martin Kostejn, Jiri Pavlovsky, Miroslava Filip Edelmannova, Kamila Koci
Summary: This study synthesized C3N4 from nitrogen-rich precursors, forming vacancy complexes that are beneficial for hydrogen generation, and the photocatalyst exhibited higher performance than bulk C3N4 synthesized in air.
SCIENTIFIC REPORTS
(2022)
Article
Thermodynamics
Helena Dolezalova-Weissmannova, Stanislav Maly, Martin Brtnicky, Jiri Holatko, Michael Scott Demyan, Christian Siewert, David Tokarski, Eliska Kamenikova, Jiri Kucerik
Summary: Thermogravimetry (TG) is a simple method for rapid analysis of soil properties, but its link with microbiological soil properties has not been systematically tested. This study aimed to search and validate the relationships between thermal mass losses (TML) and various soil properties. Results showed significant correlations between TML and basic soil properties, and equations developed from these correlations were successfully validated for prediction, mainly for arable soils.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2023)
Article
Chemistry, Physical
Monika Michalska, Jiri Pavlovsky, Pavlina Peikertova, Sylva Holesova, Krishnan Shanmugam Anuratha, Jeng-Yu Lin
Summary: A modified sol-gel method was used to synthesize a nanocrystalline composite as an efficient anode material for lithium-ion batteries. The composite exhibited a mesoporous/microporous microstructure and showed improved electrochemical performance, especially at high C rates.
SOLID STATE IONICS
(2022)
Article
Chemistry, Multidisciplinary
M. Michalska, J. Pavlovsky, K. Lemanski, M. Malecka, M. Ptak, V. Novak, M. Kormunda, V. Matejka
Summary: The article presents a chemical approach for preparing environmentally friendly and cost-effective photocatalysts for wastewater treatment. The study focuses on the combination of surface-modified titanium dioxide with silver nanoparticles and the photocatalytic performance of the catalysts in dye degradation. The findings provide practical insights for selecting the best photocatalyst and irradiation conditions.
MATERIALS TODAY CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Radim Skuta, Bruno Kostura, Michal Ritz, Krystof Foniok, Jiri Pavlovsky, Dalibor Matysek
Summary: Acid leachate from steel sludge was used to prepare photo-catalytically active composites based on GO/ZnO-L and g-C3N4/ZnO-L. The composites exhibited higher photocatalytic efficiency in the degradation of azo dye compared to the model composites. This is attributed to the modified electronic structure and the emergence of new quantum levels caused by the presence of other metal oxides in ZnO-L, leading to a more efficient separation of photo-generated charge carriers.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Multidisciplinary Sciences
M. Michalska, V. Matejka, J. Pavlovsky, P. Praus, M. Ritz, J. Serencisova, L. Gembalova, M. Kormunda, K. Foniok, M. Reli, G. Simha Martynkova
Summary: This study demonstrates the comparison of two different semiconductor materials, TiO2 and melem/g-C3N4 composites, modified with Ag nanoparticles as photocatalysts for degradation of acid orange 7 (AO7) dye. A new synthesis route for Ag NPs was proposed, and the best photocatalytic performances were achieved for TiO2 and melem/g-C3N4 materials modified with a very low Ag content. The results suggest the potential of these materials for the degradation of organic contaminants in wastewater treatment.
SCIENTIFIC REPORTS
(2023)
Article
Chemistry, Multidisciplinary
Radim Skuta, Bruno Kostura, Sarka Langova, Michal Ritz, Krystof Foniok, Sona Studentova, Jiri Pavlovsky, Vlastimil Novak, Dalibor Matysek
Summary: In this study, steel sludge was used to prepare the ZnOL-GO composite, which exhibited excellent photocatalytic efficiency against Acid Orange 7 compared to the model composite. The presence of other metal oxides in ZnOL in conjunction with GO significantly increased the photocatalytic efficiency of the composite material, likely due to modification of the electronic structure and more efficient separation of charge carriers. The results demonstrate new possibilities in processing and utilizing metallurgical waste.
Article
Ecology
Mykola M. Kharytonov, Sergey A. Stankevich, Olga Titarenko, Helena Dolezalova Weisssmannova, Iryna I. Klimkina, Liliya A. Frolova
ECOLOGICAL QUESTIONS
(2020)
