Article
Engineering, Environmental
Astolfo Valero, Jiri Jan, Daniel A. A. Petrash
Summary: This study demonstrates the efficient removal of arsenite from water using a bioelectrochemical system (BES) with the help of redox reactive humic substances derivatives and reactive nitrogen species. Geobacter sp. utilizes humic derivatives as electron shuttles, facilitating the reduction of Fe(iii) and the scavenging of As(iii). These findings contribute to the development of effective BESs for arsenite removal.
ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY
(2023)
Article
Engineering, Environmental
Xiangqin Wang, Yanhong Du, Fangbai Li, Liping Fang, Tingting Pang, Weijian Wu, Chuanping Liu, Lei Chen
Summary: A new strategy of complexing Fe(II) with organic matter (Fe-OM) was developed to regulate target gene expression responsible for Cd absorption in roots and leaves of rice plants, significantly reducing grain Cd content from 0.48 mg kg(-1) to 0.25 mg kg(-1). The downregulation of OsNramp1 and OsNramp5 in roots/stems and upregulation of OsLCT1 in leaves contributed to the mitigation of Cd accumulation in grains. This work provides a promising approach to alleviate Cd accumulation in rice grains through targeted gene regulation in specific tissues.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Agronomy
Zahra Gheshlaghi, Reza Khorassani, Javier Abadia
Summary: This study demonstrates that the application of Fe mining sub-products, thiols and the combination of Fe(III)-EDDHA and thiols can alleviate moderate Fe deficiency in soybean grown in a calcareous soil.
Article
Geochemistry & Geophysics
Xiaofeng Lin, Yang Lu, Zhenqing Shi
Summary: A quantitative model was developed to study the release of Cu(II) from Fe oxides or Fe oxide-humic substance composites. The results showed that Cu(II) release rates decreased with Fe oxide aging processes, while the presence of humic substances increased Cu(II) mobility.
APPLIED GEOCHEMISTRY
(2022)
Article
Agriculture, Multidisciplinary
Maria T. Cieschi, Juan J. Lucena
Summary: Iron humate participates in the chelate shuttle mechanism, providing available Fe to the chelating agent and then to the plants, showing a slight synergic effect. After a few days, the contribution of the chelates to the Fe nutrition decreases substantially, but the contribution of the humates is maintained. The most efficient ratio was two parts of iron humates and one part of iron chelate. Specifically, HBED/Fe3+ was the most suitable iron chelate because its lasting effect fits the iron humate long-term effect better.
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
(2021)
Article
Engineering, Environmental
Mingwei Wang, Zhiqiang Zhao, Yang Li, Song Liang, Yutong Meng, Tengfei Ren, Xiaoyuan Zhang, Yaobin Zhang
Summary: Reducing methane emissions is crucial in controlling the global greenhouse effect. This study found that using fulvic acid as a model substance of humic substances significantly decreased the formation of crystalline iron oxides, enhanced the efficiency of dissimilatory iron reduction (DIR), and effectively suppressed methanogenesis.
Article
Agronomy
Konstantin Korsakov, Alexey Stepanov, Lev Pozdnyakov, Olga Yakimenko
Summary: The effects of three types of urea fertilizers on soil N transformation processes were examined in a laboratory experiment. It was found that humate-coated urea (U_HA) showed advantages in reducing N losses, increasing N-NH4 content, and decreasing N2O emissions compared to conventional urea. U_HA also promoted soil respiration and microbial activity, making it a promising tool for reducing N losses in soils.
Article
Microbiology
Maura Santos Reis de Andrade da Silva, Lucas Amoroso Lopes de Carvalho, Lucas Boscov Braos, Luiz Fernando de Sousa Antunes, Camilla Santos Reis de Andrade da Silva, Cleudison Gabriel Nascimento da Silva, Daniel Guariz Pinheiro, Maria Elizabeth Fernandes Correia, Ednaldo da Silva Araujo, Luiz Alberto Colnago, Nicolas Desoignies, Everaldo Zonta, Everlon Cid Rigobelo
Summary: This study evaluated the responses of soybean plants to the application of humic acids from vermicompost and millicompost, along with Bradyrhizobium sp., under water restriction. The results showed that the application of humic acids promoted soybean growth and nodulation, with HA-M increasing bacterial species richness in roots. However, these effects disappeared after water stress. Fungal taxa were most affected by HA application in stressed roots, with HA-V appearing to be more effective under stress conditions. Overall, both humic acids promoted plant development compared to the control.
FRONTIERS IN MICROBIOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Attila Csicsor, Etelka Tombacz
Summary: Humic substances have been studied for a long time and recent research has revealed that they have antioxidant properties. The extraction method used affects not only the physico-chemical properties of the substances but also their free radical scavenging activity.
Article
Chemistry, Multidisciplinary
Mitsuhide Sato, Natsuki Ogata, Kuo Hong Wong, Hajime Obata, Shigenobu Takeda
Summary: The experiment revealed that solar irradiation can significantly impact the biogeochemical cycling of trace metals in the open ocean, leading to the rapid decomposition of iron- and copper-binding ligands. The competition between ligands for iron and copper ions, as well as the potential influence of sunlight on their bioavailability, may be important factors to consider.
Article
Plant Sciences
Maria Garnica, Roberto Baigorri, Sara San Francisco, Angel M. Zamarreno, Jose M. Garcia-Mina
Summary: Studies have shown that soil and sedimentary humic acids have a close relationship with the growth of plants in calcareous soils and their ability to improve iron nutrition. This relationship may be attributed to the ability of humic acid to improve iron solubility and bioavailability, as well as its potential effects on specific mechanisms in plant roots.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Chemistry, Physical
Sergey Stolyar, Roman N. Yaroslavtsev, Anna Tyumentseva, Sergey Komogortsev, Ekaterina S. Tyutrina, Alina T. Saitova, Yulia Gerasimova, Dmitriy A. Velikanov, Michael Rautskii, Rauf S. Iskhakov
Summary: Iron oxide nanoparticles were synthesized through coprecipitation method and the effects of different Fe3O4/tetraethoxysilane ratios on their properties were investigated. The results showed that the magnetite core in nanoparticles had higher magnetization compared to stoichiometric magnetite nanoparticles, which was caused by the interaction with the silicate coating. Additionally, the thickness of the nanoparticle shell was found to be related to the efficiency of DNA isolation.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Plant Sciences
Bouthayna El Amine, Fatema Mosseddaq, Rachida Naciri, Abdallah Oukarroum
Summary: Iron (Fe) deficiency and manganese (Mn) deficiency have negative effects on the growth and physiological parameters of soybean cultivars. The deficiencies affect photosynthetic efficiency, nutrient uptake, and antioxidant activity. Simultaneous Fe and Mn deficiency had a more pronounced impact compared to individual deficiencies. However, rational fertilization of Fe and Mn can improve these parameters in hydroponic conditions.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2023)
Article
Environmental Sciences
Irina V. Abmetko, Maria G. Chernysheva, Natalia A. Kulikova, Andrey I. Konstantinov, Andrey G. Popov, Gennadii A. Badun, Irina V. Perminova
Summary: The study utilized tritium-labeled humic substances to investigate the surface properties of nanodiamonds and their interaction with natural organic matter, revealing that the adsorption of humic substances onto nanodiamonds led to fractionation of humic substances dependent on the zeta potential of the nanodiamonds. However, this adsorption did not significantly impact the uptake of nanodiamonds by wheat seedlings. The uptake of nanodiamond particles by plants was determined by the functional composition of the particle surface.
ENVIRONMENTAL RESEARCH
(2021)
Article
Agronomy
Izabella Pisarek, Katarzyna Grata
Summary: The aim of this study was to determine the impact of different chemical properties in soil on the microbial community in the soybean agroecosystem. The study found that sewage sludge and fly ash had significant effects on magnetic susceptibility, as well as on the total content of heavy metals in the soil. The results showed that these external organic materials can be used as alternatives to natural fertilizers for soybean production.
Review
Chemistry, Analytical
Polina S. Fomina, Mikhail A. Proskurnin, Boris Mizaikoff, Dmitry S. Volkov
Summary: This review discusses the analytical capabilities of Fourier-transform infrared spectroscopic techniques for analyzing aqueous solutions and provides examples.
CRITICAL REVIEWS IN ANALYTICAL CHEMISTRY
(2023)
Article
Biochemistry & Molecular Biology
Arina G. Kicheeva, Ekaterina S. Sushko, Lyubov S. Bondarenko, Kamila A. Kydralieva, Denis A. Pankratov, Nataliya S. Tropskaya, Artur A. Dzeranov, Gulzhian I. Dzhardimalieva, Mauro Zarrelli, Nadezhda S. Kudryasheva
Summary: The current study investigates the role of reactive oxygen species (ROS) in the bioeffects of different types of magnetite nanoparticles (MNPs) - bare (Fe3O4), humic acids (Fe3O4-Ha), and 3-aminopropyltriethoxysilane (Fe3O4-APTES) modified MNPs. The study found that Fe3O4-HA MNPs had the lowest amount of Fe2+ ions, while Fe3O4-APTES MNPs had the highest amount of Fe2+ ions. Bioluminescent cellular and enzymatic assays were used to monitor the toxicity and antioxidant activity of the MNPs. The results showed that the modified MNPs had toxic effects at higher concentrations (>10(-2) g/L) and stimulated ROS production by bacteria in a wide concentration range (10(-15)-1 g/L).
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Chemistry, Multidisciplinary
Alexander B. Volikov, Nikita A. Sobolev, Anna N. Khreptugova, Irina Perminova
Summary: The objective of this work was to study the sorption of dissolved organic matter (DOM) onto Bondesil PPL and Bond Elut PPL sorbents and its impact on the molecular composition of the isolated DOM using solid phase extraction (SPE). The Langmuir model was found to best fit the batch sorption isotherms, with sorption constants of 8.6×10(3) L·kg(OC)(-1) for Bond Elut PPL and 10.7×10(3) L·kg(OC)(-1) for Bondesil PPL. Logistic equation satisfactorily fitted the breakthrough curves, with a maximum sorbent loading of 13% (wt. dissolved organic carbon) for both sorbents. At low loading values (up to 4%), there was preferential sorption of low molecular weight aromatic DOM components, as observed by optical descriptors and size exclusion chromatography (SEC) measurements. However, the impact of loading on molecular composition was lesser within the range of 4 to 8% dissolved organic carbon (DOC). Given the high recovery values (70-85%) in this loading range, it is recommended to use SPE PPL-modified sorbents for DOM isolation from natural waters.
SEPARATION SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Physical
Anastasiia Molchanova, Kirill Boldyrev, Nikolai Kuzmin, Alexey Veligzhanin, Kirill Khaydukov, Evgeniy Khaydukov, Oleg Kondratev, Irina Gudim, Elizaveta Mikliaeva, Marina Popova
Summary: We conducted a comprehensive study on the luminescence characteristics and valence states of Mn impurity ions in a YAl3(BO3)(4):Mn crystal using X-ray fluorescence analysis and XANES spectroscopy. We identified the origins of different luminescence and absorption lines, including those caused by Mn2+ and Mn3+. The crystal-field and Racah parameters for Mn3+ in YAB:Mn were estimated using optical spectroscopy and Tanabe-Sugano diagrams. This study provides valuable insights for further applications, such as luminescent thermometry.
Article
Chemistry, Inorganic & Nuclear
Artur Dzeranov, Lyubov Bondarenko, Denis Pankratov, Gulzhian Dzhardimalieva, Sharipa Jorobekova, Daniel Saman, Kamila Kydralieva
Summary: The use of iron oxide nanoparticles, particularly for commercial purposes, requires strict preservation of their phase composition. The choice of nanoparticle modifier and modification conditions is crucial due to their sensitivity to oxygen under real conditions. This study investigated the phase composition changes of magnetite nanoparticles after modification and oxidation, and found that the nonstoichiometric nature of the nanoparticles increased. Furthermore, both XRD and Mössbauer spectroscopy provided valuable information about the ionic composition and distribution of iron ions in the nanoparticles.
Article
Chemistry, Inorganic & Nuclear
Artur Dzeranov, Lyubov Bondarenko, Denis Pankratov, Mikhail Prokof'ev, Gulzhian Dzhardimalieva, Sharipa Jorobekova, Nataliya Tropskaya, Ludmila Telegina, Kamila Kydralieva
Summary: This study analyzes a group of iron oxide nanoparticles as potential candidates for ferroptosis therapy, focusing on their phase state, magnetic characteristics, and the release of Fe2+/Fe3+ as ROS mediators. The results suggest that Fe3O4 and γ-Fe2O3 show promise as magnetically controlled carriers due to their saturation magnetization and surface area. The evaluation of Fe2+/Fe3+ ion release as catalysts for the Fenton reaction reveals that all nanoparticles, except α-FeOOH-Fe2+, are preferable for controlling Fenton catalysis. The high concentration of iron ions released by α-FeOOH-Fe2+ makes it suitable as an aid therapy agent.
Article
Environmental Sciences
Arpna Kumari, Saglara S. Mandzhieva, Tatiana M. Minkina, Vishnu D. Rajput, Victoria A. Shuvaeva, Dina G. Nevidomskaya, Mikhail Kirichkov, Alexei A. Veligzhanin, Roman D. Svetogorov, Evgeniy Khramov, Bilal Ahmed, Jagpreet Singh
Summary: Chromium is hazardous to the environment and surrounding organisms, and its phytotoxicity is studied in this research. The accumulation and translocation of chromium in plants disrupt cellular metabolism and inhibit germination, growth, and photosynthesis. The toxicity is higher with nanoparticles than with macro-particles of chromium. Synchrotron X-ray technique is used to identify chromium-containing compounds in plant tissues, revealing the mechanism of chromium's impacts at different levels.
ENVIRONMENTAL RESEARCH
(2023)
Article
Engineering, Environmental
Alexander Zherebker, Anastasia Sarycheva, Irina V. Perminova, Evgeny N. Nikolaev
Summary: Direct comparison of HRMS data is challenging due to instrument limitations and sample conditions, resulting in distinct molecular species lists even for the same sample. We propose a method, based on the differences in molecular formulae, to classify and preserve the essence of the given sample. The FDCEL metric allows for comparison and classification of samples measured by different instruments, and can be used for spectrum quality control and examination of samples.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Biochemical Research Methods
Alexander Volikov, Gleb Rukhovich, Irina V. Perminova
Summary: The present study introduces NOMspectra, a Python package for processing high resolution mass spectrometry data on complex systems of natural organic matter (NOM). The package offers a comprehensive workflow for processing, analyzing, and visualizing information-rich mass spectra of NOM and HS, including algorithms for filtering spectra, recalibrating, and assigning elemental compositions to molecular ions. The package also includes functions for calculating various molecular descriptors and methods for data visualization. A graphical user interface (GUI) has been developed for easy user interaction.
JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY
(2023)
Article
Environmental Sciences
Sommer Starr, Sarah Ellen Johnston, Nikita Sobolev, Irina Perminova, Anne Kellerman, Greg Fiske, Ekaterina Bulygina, Alexander Shiklomanov, Amy McKenna, Robert G. M. Spencer
Summary: Compared to the six major Arctic rivers, the Onega River, a small Arctic watershed, has higher levels of dissolved organic carbon (DOC) and organic matter (DOM) throughout the year, with pronounced seasonality in both spring and fall. This indicates that smaller northern high-latitude rivers may play a larger role in Arctic carbon flux models and the export of DOC to the Arctic Ocean than previously assumed.
JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
(2023)
Article
Agronomy
Evgeniya A. Karpukhina, Dmitry S. Volkov, Mikhail A. Proskurnin
Summary: The existing techniques for lignosulfonate in humate fertilizers lack selectivity and require labor- and time-consuming sample preparation. This study developed a procedure based on ATR FTIR spectroscopy with simple sample preparation for directly quantifying lignosulfonates in aqueous solutions. The technique shows potential for analyzing fertilizers of simple composition and quality control of pure humates used for plant growth.
Article
Environmental Sciences
Nikita A. Sobolev, Konstantin S. Larionov, Darya S. Mryasova, Anna N. Khreptugova, Alexander B. Volikov, Andrey I. Konstantinov, Dmitry S. Volkov, Irina V. Perminova
Summary: Pollution of the Arctic Ocean by potentially toxic elements (PTEs) is a current environmental problem. Humic acids (HAs) play an important role in the regulation of PTE mobility in soil and water. The thawing of permafrost could increase the mobility of PTEs in the Arctic Ocean due to the release of organic matter with a specific molecular composition. The adsorption experiments have shown that peat and alas HAs have a higher affinity for binding both Cu2+ and Ni2+ ions compared to Yedoma HAs.
Article
Chemistry, Inorganic & Nuclear
Ivan V. Mikheev, Viktor A. Verkhovskii, Sofiya M. Byvsheva, Dmitry S. Volkov, Mikhail A. Proskurnin, Vladimir K. Ivanov
Summary: Excitation-emission matrix (EEM) fluorescence spectroscopy was used to quantify unmodified fullerenes C-60 and C-70 in different solvents at room temperature. The fluorescence intensity and parameters depend on the fullerene and solvent, allowing for quantification of mixtures without separation. The method was successfully applied to model and real mixtures of C-60 and C-70, with detection limits of 7 nmol/L and 2 nmol/L, respectively.
Article
Chemistry, Physical
Adriain Dewambrechies, Alexander Yu. Polyakov, Betul Kucukoz, Timur O. Shegai
Summary: In this study, the formation of strained ultrasharp zigzag edges in MoS2 multilayers produced by anisotropic wet etching is analyzed. The topography of the edges is determined by the relative stability of different crystallographic directions and interlayer interactions. The spectroscopic characteristics of these edges, including enhanced second-order nonlinearity, are studied, and it is confirmed that ultrasharp hexagonal nanoholes in MoS2 grow along the most stable crystallographic directions.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Polymer Science
Aleksandra A. A. Patlay, Andrei S. S. Belousov, Vladimir E. E. Silant'ev, Roman A. A. Shatilov, Mikhail E. E. Shmelev, Valeri V. V. Kovalev, Irina V. V. Perminova, Ivan N. N. Baklanov, Vadim V. V. Kumeiko
Summary: We developed films and nanoparticles based on low-esterified pectin hydrogel for drug delivery systems in adjuvant anticancer therapy. These nanostructured biomaterials showed tunable properties and good biocompatibility, and exhibited potential antitumor activity against human glioblastoma cells.
