keyword
https://read.qxmd.com/read/38479284/activation-of-iron-oxide-minerals-in-an-aquifer-by-humic-acid-to-promote-adsorption-of-organic-molecules
#1
JOURNAL ARTICLE
Xuelian Xia, Xu Han, Yuanzheng Zhai
In aquifers, the sequestration and transformation of organic carbon are closely associated with soil iron oxides and can facilitate the release of iron ions from iron oxide minerals. There is a strong interaction between dissolved organic matter (DOM) and iron oxide minerals in aquifers, but the extent to which iron is activated by DOM exposure to active iron minerals in natural aquifers, the microscopic distribution of minerals on the surface, and the mechanisms involved in DOM molecular transformation are currently unclear...
March 12, 2024: Journal of Environmental Management
https://read.qxmd.com/read/38474598/particle-size-measurement-and-detection-of-bound-proteins-of-non-porous-mesoporous-silica-microspheres-by-single-particle-inductively-coupled-plasma-mass-spectrometry
#2
JOURNAL ARTICLE
Shin-Ichi Miyashita, Toshihiko Ogura, Shun-Ichi Matsuura, Eriko Fukuda
Single-particle inductively coupled plasma mass spectrometry (spICP-MS) has been used for particle size measurement of diverse types of individual nanoparticles and micrometer-sized carbon-based particles such as microplastics. However, its applicability to the measurement of micrometer-sized non-carbon-based particles such as silica (SiO2 ) particles is unclear. In this study, the applicability of spICP-MS to particle size measurement of non-porous/mesoporous SiO2 microspheres with a nominal diameter of 5...
February 29, 2024: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://read.qxmd.com/read/38474262/targeted-rnaseq-revealed-the-gene-expression-signature-of-ferroptosis-related-processes-associated-with-disease-severity-in-patients-with-multiple-sclerosis
#3
JOURNAL ARTICLE
Ljiljana Stojkovic, Ivan Jovanovic, Evica Dincic, Ana Djordjevic, Jovana Kuveljic, Tamara Djuric, Aleksandra Stankovic, Slobodan Vojinovic, Maja Zivkovic
Detrimental molecular processes in multiple sclerosis (MS) lead to the cellular accumulation of lipid peroxidation products and iron in the CNS, which represents the main driving force for ferroptosis. Ferroptosis is an iron-dependent form of regulated cell death, with proposed roles in neurodegeneration, oligodendrocyte loss and neuroinflammation in the pathogenesis of MS. Ferroptosis-related gene expression signature and molecular markers, which could reflect MS severity and progression, are currently understudied in humans...
March 5, 2024: International Journal of Molecular Sciences
https://read.qxmd.com/read/38467998/mxene-supported-mil-88a-fe-as-persulfate-activator-for-removal-of-tetracycline
#4
JOURNAL ARTICLE
Junxia Chen, Zhenzhen Yang, Weigang Li, Yuying Yang, Feng Zhu, Zongli Huo, Qing Zhou
The poor conductivity, poor stability, and agglomeration of iron-based metal organic framework MIL-88A(Fe) limit its application as persulfate (PS) activator in water purification. Herein, MXene-supported MIL-88A(Fe) composites (M88A/MX) were synthesized to enhance its adsorption and catalytic capability for tetracycline (TC) removal. Scanning electron microscope (SEM), X-ray diffractometer (XRD), Fourier transform infrared spectrometer (FT-IR), and X-ray photoelectron spectroscopy (XPS) were used to characterize prepared materials, confirming the successful attachment of MIL-88A(Fe) to the surface of MXene...
March 11, 2024: Environmental Science and Pollution Research International
https://read.qxmd.com/read/38460843/using-cumgfe-layered-double-oxide-to-replace-laccase-as-a-catalyst-for-abiotic-humification
#5
JOURNAL ARTICLE
Vu Khac Hoang Bui, Xuan Cuong Nguyen, Hai Bang Truong, Jin Hur
Humification offers a promising avenue for sequestering dissolved organic carbon while facilitating environmental cleanup. In this study, CuMgFe layered double oxides (LDO) were applied as a catalyst to replace conventional enzymes, such as laccase, thereby enhancing the in vitro polyphenol-Maillard humification reaction. CuMgFe LDO was synthesized through calcination of CuMgFe layered double hydroxides (LDH) at 500 °C for 5 h. A suite of characterization methods confirmed the successful formation into mixed oxides (Cu2 O, CuO, MgO, FeO, and Fe2 O3 ) after thermal treatment...
March 7, 2024: Chemosphere
https://read.qxmd.com/read/38459117/mixture-effects-of-trace-element-levels-on-cardiovascular-diseases-and-type-2-diabetes-risk-in-adults-using-g-computation-analysis
#6
JOURNAL ARTICLE
Borhan Mansouri, Ayoob Rezaei, Kiomars Sharafi, Nammamali Azadi, Meghdad Pirsaheb, Maryam Rezaei, Samaneh Nakhaee
There is an increasing concern about the health effects of exposure to a mixture of pollutants. This study aimed to evaluate the associations between serum levels of heavy/essential metals ([Arsenic (As), Cadmium (Cd), Mercury (Hg), Lead (Pb), Nickel (Ni), Chromium (Cr), Copper (Cu), Iron (Fe), and Zinc (Zn)]) and the risk of developing cardiovascular diseases (CVDs) and type 2 diabetes mellitus (T2D). Data were collected from 450 participants (150 with CVDs, 150 with T2D, and 150 healthy subjects) randomly selected from the Ravansar Non-Communicable Disease (RaNCD) cohort in Western Iran, covering the years 2018-2023...
March 8, 2024: Scientific Reports
https://read.qxmd.com/read/38455867/nanocrystalline-iron-hydroxide-lignocellulose-filters-for-arsenate-remediation
#7
JOURNAL ARTICLE
Steven A Soini, Sofia M Feliciano, Bobby G Duersch, Vivian M Merk
Harmful levels of environmental contaminants, such as arsenic (As), persist readily in the environment, threatening safe drinking water supplies in many parts of the world. In this paper, we present a straightforward and cost-effective filtration technology for the removal of arsenate from potable water. Biocomposite filters comprised of nanocrystalline iron oxides or oxyhydroxides mineralized within lignocellulose scaffolds constitute a promising low cost, low-tech avenue for the removal of these contaminants...
March 6, 2024: RSC Sustain
https://read.qxmd.com/read/38454122/synthesis-anticancer-activity-and-molecular-docking-of-half-sandwich-iron-ii-cyclopentadienyl-complexes-with-maleimide-and-phosphine-or-phosphite-ligands
#8
JOURNAL ARTICLE
Sujoy Das, Marcelina Strachanowska, Piotr Wadowski, Michał Juszczak, Paulina Tokarz, Aneta Kosińska, Marcin Palusiak, Agnieszka J Rybarczyk-Pirek, Kinga Wzgarda-Raj, Saranya Vasudevan, Arkadiusz Chworos, Katarzyna Woźniak, Bogna Rudolf
In these studies, we designed and investigated the potential anticancer activity of five iron(II) cyclopentadienyl complexes bearing different phosphine and phosphite ligands. All complexes were characterized with spectroscopic analysis viz. NMR, FT-IR, ESI-MS, UV-Vis, fluorescence, XRD (for four complexes) and elemental analyses. For biological studies, we used three types of cells-normal peripheral blood mononuclear (PBM) cells, leukemic HL-60 cells and non-small-cell lung cancer A549 cells. We evaluated cell viability and DNA damage after cell incubation with these complexes...
March 7, 2024: Scientific Reports
https://read.qxmd.com/read/38454098/evaluation-of-urinary-trace-element-levels-in-patients-with-opioid-use-disorder-undergoing-methadone-treatment-in-western-iran
#9
JOURNAL ARTICLE
Samaneh Nakhaee, Alireza Amirabadi Zadeh, Yazdan Madadjoo, Nammam Ali Azadi, Borhan Mansouri
The monitoring of essential and toxic elements in patients with Opioid Use Disorder (OUD) undergoing methadone treatment (MT) is important, and there is limited previous research on the urinary levels of these elements in MT patients. Therefore, the present study aimed to analyze certain elements in the context of methadone treatment compared to a healthy group. In this study, patients with opioid use disorder undergoing MT (n = 67) were compared with a healthy group of companions (n = 62) in terms of urinary concentrations of some essential elements (selenium (Se), zinc (Zn), copper (Cu), iron (Fe), manganese (Mn), calcium (Ca)) and toxic elements (lead (Pb), cadmium (Cd), arsenic (As), and chromium (Cr))...
March 7, 2024: Scientific Reports
https://read.qxmd.com/read/38453942/genomic-insights-and-anti-phytopathogenic-potential-of-siderophore-metabolome-of-endolithic-nocardia-mangyaensis-nh1
#10
JOURNAL ARTICLE
Irina V Khilyas, Maria I Markelova, Liia R Valeeva, Tatiana M Ivoilova, Elena Shagimardanova, Alexander V Laikov, Anna A Elistratova, Ekaterina S Berkutova, Guenter Lochnit, Margarita R Sharipova
Actinobacteria are one of the predominant groups that successfully colonize and survive in various aquatic, terrestrial and rhizhospheric ecosystems. Among actinobacteria, Nocardia is one of the most important agricultural and industrial bacteria. Screening and isolation of Nocardia related bacteria from extreme habitats such as endolithic environments are beneficial for practical applications in agricultural and environmental biotechnology. In this work, bioinformatics analysis revealed that a novel strain Nocardia mangyaensis NH1 has the capacity to produce structurally varied bioactive compounds, which encoded by non-ribosomal peptide synthases (NRPS), polyketide synthase (PKS), and post-translationally modified peptides (RiPPs)...
March 7, 2024: Scientific Reports
https://read.qxmd.com/read/38447863/proteome-analysis-of-outer-membrane-vesicles-from-vibrio-parahaemolyticus-causing-acute-hepatopancreatic-necrosis-disease
#11
JOURNAL ARTICLE
Lihan Wang, Qifan Zeng, Jingjie Hu, Zhenmin Bao, Mengqiang Wang
A specific strain of Vibrio parahaemolyticus (VpAHPND) causes acute hepatopancreatic necrosis disease (AHPND), leading to significant losses in shrimp aquaculture. Outer membrane vesicles (OMVs) are naturally secreted by Gram-negative bacteria, and their significant roles in host-pathogen interactions and pathogenicity have been recognized. In the present study, OMVs were isolated from VpAHPND by differential-ultracentrifugation and used for proteomics analysis. In the Nano-HPLC-MS/MS analysis, totally 645 proteins were determined, including virulence factors, immunogenic proteins, outer membrane protein, bacterial secretory proteins, ribosomal proteins, protease, and iron regulation proteins...
March 4, 2024: Journal of Invertebrate Pathology
https://read.qxmd.com/read/38447366/influence-of-water-chemistry-and-operating-parameters-on-pfos-pfoa-removal-using-rgo-nzvi-nanohybrid
#12
JOURNAL ARTICLE
Md Arafat Ali, Utsav Thapa, Jonathan Antle, Ehsan Ul Hoque Tanim, John Michael Aguilar, Ian M Bradley, Diana S Aga, Nirupam Aich
Graphene and zero-valent-iron based nanohybrid (rGO-nZVI NH) with oxidant H2 O2 can remove perfluorooctanoic acid (PFOA) and perfluorooctane sulfonic acid (PFOS) through adsorption-degradation in a controlled aquatic environment. In this study, we evaluated how and to what extent different environmental and operational parameters, such as initial PFAS concentration, H2 O2 dose, pH, ionic strength, and natural organic matter (NOM), influenced the removal of PFOS and PFOA by rGO-nZVI. With the increase in initial PFAS concentration (from 0...
February 28, 2024: Journal of Hazardous Materials
https://read.qxmd.com/read/38438247/serum-and-tissue-metallome-of-pancreatic-ductal-adenocarcinoma
#13
JOURNAL ARTICLE
Sooin Byeon, Taymin du Toit-Thompson, Luke Hipperson, Sarah Maloney, Ross Wenzel, Anthony J Gill, Jaswinder S Samra, Anubhav Mittal, Sumit Sahni
Pancreatic ductal adenocarcinoma (PDAC) patients have late presentation at the time of diagnosis and a poor prognosis. Metal dyshomeostasis is known to play a role in cancer progression. However, the blood and tissue metallome of PDAC patients has not been assessed. This study aimed to determine the levels of essential and toxic metals in the serum and pancreatic tissue from PDAC patients. Serum samples were obtained from PDAC patients before surgical resection. Tissue (tumor and adjacent normal pancreas) were obtained from the surgically resected specimen...
March 4, 2024: Cancer Science
https://read.qxmd.com/read/38437542/a-magnetic-separation-method-for-isolating-and-characterizing-the-biomolecular-corona-of-lipid-nanoparticles
#14
JOURNAL ARTICLE
Valentina Francia, Yao Zhang, Miffy Hok Yan Cheng, Raymond M Schiffelers, Dominik Witzigmann, Pieter R Cullis
Lipid nanoparticle (LNP) formulations are a proven method for the delivery of nucleic acids for gene therapy as exemplified by the worldwide rollout of LNP-based RNAi therapeutics and mRNA vaccines. However, targeting specific tissues or cells is still a major challenge. After LNP administration, LNPs interact with biological fluids (i.e., blood), components of which adsorb onto the LNP surface forming a layer of biomolecules termed the "biomolecular corona (BMC)" which affects LNP stability, biodistribution, and tissue tropism...
March 12, 2024: Proceedings of the National Academy of Sciences of the United States of America
https://read.qxmd.com/read/38434823/phytochemical-antioxidant-activity-and-toxicity-of-wild-medicinal-plant-of-melitotus-albus-extracts-in-vitro-and-in-silico-approaches
#15
JOURNAL ARTICLE
Imad Ed-Dahmani, Mohamed El Fadili, Fahd Kandsi, Raffaele Conte, Yassine El Atki, Mohammed Kara, Amine Assouguem, Hanane Touijer, Aziza Lfitat, Ghizlane Nouioura, Meryem Slighoua, Riaz Ullah, Jameel H Al-Tamimi, Mustapha Taleb, Abdelfattah Abdellaoui
Morocco is known for its high plant biodiversity, but many plants are poorly valorized. For this reason, this study aims to valorize the methanolic and aqueous extracts of Melitotus albus leaves by studying their antioxidant activity and toxicity. The extracts' antioxidant activity is assessed using the FRAP, DPPH, CAT, and ABTS methods. The chemical composition was determined using LC-MS analysis and evaluated using in silico studies. The results revealed that the total polyphenol content of the aqueous extract, 259...
February 27, 2024: ACS Omega
https://read.qxmd.com/read/38432191/accurate-redox-state-indication-by-in-situ-derivatization-with-n-ethylmaleimide-profiling-of-transsulfuration-and-glutathione-pathway-metabolites-by-uplc-ms-ms
#16
JOURNAL ARTICLE
Mathias Langner, Dennis Fröbel, Jana Helm, Triantafyllos Chavakis, Mirko Peitzsch, Nicole Bechmann
BACKGROUND: Reduced and oxidized glutathione play an important role for the intracellular detoxification of reactive oxygen species. The iron-dependent formation of such reactive oxygen species in conjunction with the inhibition of the redox-balancing enzyme glutathione peroxidase 4 underlie an imbalance in the cellular redox state, thereby resulting in a non-apoptotic form of cell death, defined as ferroptosis, which is relevant in several pathologies. METHODS: Here we present a rapid ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) based method providing the accurate quantification of 12 glutathione pathway metabolites after in situ derivatization with N-Ethylmaleimide (NEM)...
February 27, 2024: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://read.qxmd.com/read/38431946/iron-copper-and-magnesium-concentration-in-hair-and-risk-of-esophageal-cancer-a-nested-case-control-study
#17
JOURNAL ARTICLE
Maryam Hashemian, Hossein Poustchi, Maryam Sharafkhah, Akram Pourshams, Fatemeh Mohammadi-Nasrabadi, Azita Hekmatdoost, Reza Malekzadeh
BACKGROUND: An association has already been hypothesized between iron, copper, and magnesium status assessed through food frequency questionnaires (FFQs) and the risk of esophageal squamous cell carcinoma (ESCC). However, self-reported dietary assessment methods are prone to measurement errors. We studied the association between iron, copper, and magnesium status and ESCC risk, using hair samples as a long exposure biomarker. METHODS: We designed a nested case-control study within the Golestan Cohort Study, that recruited about 50000 participants in 2004-2008, and collected biospecimens at baseline...
December 1, 2023: Archives of Iranian Medicine
https://read.qxmd.com/read/38430975/a-fully-automatic-parenchyma-extraction-method-for-mri-t2-relaxometry-of-iron-loaded-liver-in-transfusion-dependent-patients
#18
JOURNAL ARTICLE
Zifeng Lian, Qiqi Lu, Bingquan Lin, Lingjian Chen, Jian Gong, Qiugen Hu, Huafeng Wang, Yanqiu Feng
PURPOSE: To develop a fully automatic parenchyma extraction method for the T2* relaxometry of iron overload liver. METHODS: A retrospective multicenter collection of liver MR examinations from 177 transfusion-dependent patients was conducted. The proposed method extended a semiautomatic parenchyma extraction algorithm to a fully automatic approach by introducing a modified TransUNet on the R2* (1/T2*) map for liver segmentation. Axial liver slices from 129 patients at 1...
February 29, 2024: Magnetic Resonance Imaging
https://read.qxmd.com/read/38423619/a-modified-integrated-physical-advanced-primary-treatment-to-enhance-particulate-organic-carbon-removal-in-municipal-wastewater-treatment-plants
#19
JOURNAL ARTICLE
Behnam Askari Lasaki, Peter Maurer, Harald Schönberger
In the pursuit of a treatment approach that is both cost-effective and environmental-friendly, the applicability of microscreen (MS) techniques coupled with a primary sedimentation tank (PST) as a physical advanced primary treatment (APT) to enhance the removal of particulate organic carbon (POC) from municipal wastewater was investigated. A pilot unit, including a modified MS, adjustable to different meshes (including 20 and 15 μm) was operated continuously downstream to the PST at the Büsnau wastewater treatment plant in Stuttgart, Germany, and monitored for more than half a year...
February 2024: Water Science and Technology: a Journal of the International Association on Water Pollution Research
https://read.qxmd.com/read/38422369/long-non-coding-rna-kb-1460a1-5-promotes-ferroptosis-by-inhibiting-mtor-srebp-1-scd1-mediated-polyunsaturated-fatty-acid-desaturation-in-glioma
#20
JOURNAL ARTICLE
Lixia Xu, Binli Wen, Qiaoli Wu, Shan Lu, Jianwen Liao, Lidong Mo, Qingguo Li, Xiaoguang Tong, Hua Yan
Ferroptosis is a new form of regulated cell death caused by the iron-dependent peroxidation of phospholipids and is related to cell metabolism, redox homeostasis and various signalling pathways related to cancer. The long noncoding RNA (lncRNA) KB-1460A1.5 acts as a tumour suppressor gene to regulate tumour growth in gliomas, but its molecular network regulatory mechanism is still unclear. In this study, we found that KB-1460A1.5 can induce ferroptosis in glioma and enhance sensitivity to RSL3, a ferroptosis inducer...
February 29, 2024: Carcinogenesis
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