Manganese Oxide / Silica catalysed Decarboxylative Ketonization of Aliphatic Carboxylic Acids in a Continuous Flow Reactor
ChemSusChem. 2024 Apr 18:e202400094. doi: 10.1002/cssc.202400094. Online ahead of print.ABSTRACTThe sustainable synthesis of long carbon chain molecules from carbon dioxide, water and electricity relies on the development of waste-free, highly selective C-C bond forming reactions. An example for such a power-to-chemicals process is the industrial-scale fermentation for the production of hexanoic acid. Herein, we describe how this product is transformed into 6-undecanone via decarboxylative ketonization using a heterogeneous manganese oxide / silica catalyst. The reaction reaches full conversion with near-complete selectivi...
Source: ChemSusChem - April 18, 2024 Category: Chemistry Authors: Jonas Felix Goebel Florian Belitz Daniel Sowa Prendes Yannik Haver Patrick Diehl Martin Muhler Lukas J Goossen Source Type: research
Green synthesis of manganese ferrite magnetic nanoparticle and its modification with metallic-organic frameworks for the tetracycline adsorption from aqueous solutions: A mathematical study of kinetics, isotherms, and thermodynamics
Environ Res. 2024 Apr 16:118957. doi: 10.1016/j.envres.2024.118957. Online ahead of print.ABSTRACTIn the current investigation, MnFe2O4/ZIF-8 nanocomposite was generated as a magnetic nanoadsorber using the extract of Dracocephalum plant and characterized by XRD, FTIR, VSM, BET, FESEM, EDS-mapping, TEM, XPS, TPD-NH3, and TGA analyses. Also, to determine its efficiency in the adsorption process of tetracycline, the effect of pH (3-9), nanocomposite dose (0.025-2 g/L), initial pollutant concentration (5-100 mg/L), contact time (5-200 min), and temperature (5-50 °C) were studied. The results of the morphological properties o...
Source: Environmental Research - April 18, 2024 Category: Environmental Health Authors: Moslem Azqandi Bahman Ramavandi Negin Nasseh Davood Zaarei Farzaneh Fanaei Source Type: research
Bubble Assisted Microstreaming during Electrode Deposition of Mn2O3 Energy Harvesters
Phys. Chem. Chem. Phys., 2024, Accepted Manuscript DOI: 10.1039/D3CP05939A, PaperSanchia M. Kharpanbuh, Prahlad K Baruah, Alika Khare, Arpita Nath Deposition of energy harvesting Mn2O3 onto “Cu” electrode is reported by using pulsed laser ablation at manganese-water interface. Conventionally, laser induced plasma deposition is carried out by placing the substrate... The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Phys. Chem. Chem. Phys. latest articles)
Source: RSC - Phys. Chem. Chem. Phys. latest articles - April 18, 2024 Category: Chemistry Authors: Sanchia M. Kharpanbuh Source Type: research
Molecules, Vol. 29, Pages 1849: Investigating Ligand Sphere Perturbations on MnIII & ndash;Alkylperoxo Complexes
Molecules, Vol. 29, Pages 1849: Investigating Ligand Sphere Perturbations on MnIII–Alkylperoxo Complexes
Molecules doi: 10.3390/molecules29081849
Authors:
Samuel A. Brunclik
Elizabeth N. Grotemeyer
Zahra Aghaei
Mohammad Rasel Mian
Timothy A. Jackson
Manganese catalysts that activate hydrogen peroxide carry out several different hydrocarbon oxidation reactions with high stereoselectivity. The commonly proposed mechanism for these reactions involves a key manganese(III)-hydroperoxo intermediate, which decays via O–O bond heterolysis to generate a Mn(V)–oxo species that in...
Source: Molecules - April 18, 2024 Category: Chemistry Authors: Samuel A. Brunclik Elizabeth N. Grotemeyer Zahra Aghaei Mohammad Rasel Mian Timothy A. Jackson Tags: Article Source Type: research
Reduction of sulfoxides catalyzed by the commercially available manganese complex MnBr(CO)5
This article is licensed under aCreative Commons Attribution 3.0 Unported Licence.Daniel Leal Louren ço, Ana Cristina Fernandes A new methodology for the reduction of a wide variety of aliphatic and aromatic sulfoxides catalyzed by the air-stable, cheap and commercially available manganese catalyst MnBr(CO)5 with excellent yields is... The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Organic and Biomolecular Chemistry)
Source: RSC - Organic and Biomolecular Chemistry - April 17, 2024 Category: Molecular Biology Authors: Daniel Leal Louren ço Source Type: research
Comparison of trace elements in peripheral blood and bone marrow of newly diagnosed multiple myeloma patients
In this study, we aimed to evaluate alterations in trace elements in the blood and bone marrow serum of patients with newly diagnosed multiple myeloma (NMM). The levels of zinc (Zn), copper (Cu), iron (Fe), manganese (Mn), magnesium (Mg), selenium (Se), arsenic (As), boron (B), nickel (Ni), silicon (Si) and chromium (Cr) were analyzed in the venous blood samples of the patient group comprising 70 patients with NMM (41 males and 29 females) and compared to those in the control group comprising 30 individuals (18 males and 12 females). In addition, trace element levels were analyzed in bone marrow samples from the patient gr...
Source: Cancer Control - April 17, 2024 Category: Cancer & Oncology Authors: Ayse Nilgun Kul Bahar Ozturk Kurt Source Type: research
Characteristic and mechanism of biological nitrogen and phosphorus removal facilitated by biogenic manganese oxides (BioMnOx) at various concentrations of Mn(II)
Environ Res. 2024 Apr 15:118943. doi: 10.1016/j.envres.2024.118943. Online ahead of print.ABSTRACTBiogenic manganese oxides (BioMnOx) have attracted considerable attention as active oxidants, adsorbents, and catalysts. However, characteristics and mechanisms of nitrification-denitrification in biological redox reactions mediated by different concentrations of BioMnOx are still unclear. Fate of nutrients (e.g., NH4+-N, TP, NO3--N) and COD were investigated through different concentrations of BioMnOx produced by Mn(II) in the moving bed biofilm reactor (MBBR). 34% and 89.2%, 37.8% and 89.8%, 57.3% and 88.9%, and 62.1% and 90...
Source: Environmental Research - April 17, 2024 Category: Environmental Health Authors: Ying Cao Sicheng Shao Zhiqing Ye Chunxiao Wang Dandan Pan Xiangwei Wu Source Type: research
Influence of the use of remediated soil and agricultural drainage water on the safety of tomato fruits
In conclusion, the employed bioremediation techniques successfully reduced the PTE content and microbial load in both soil and drainage water ecosystems and in harvested tomato fruits. Henceforth, no health risks are expected from the consumption of this product.PMID:38632200 | DOI:10.1007/s11356-024-33187-z (Source: Environmental Science and Pollution Research International)
Source: Environmental Science and Pollution Research International - April 17, 2024 Category: Environmental Health Authors: Salah H Salem Mohamed Saber Samir Gadow Hoda Kabary Alaa Zaghloul Source Type: research
Manganism due to occupational welding fume exposure: a case report
In this report, the aim is to emphasize the significance of taking a comprehensive occupational history and to draw attention the potential health hazards associated with Mn and its compounds.PMID:38631849 | DOI:10.2486/indhealth.2023-0171 (Source: Industrial Health)
Source: Industrial Health - April 17, 2024 Category: Occupational Health Authors: Mediha Anna ç Asildağ G ülden Sari Adem Koyuncu Ceprail Şimşek Source Type: research
Characteristic and mechanism of biological nitrogen and phosphorus removal facilitated by biogenic manganese oxides (BioMnOx) at various concentrations of Mn(II)
Environ Res. 2024 Apr 16;252(Pt 2):118943. doi: 10.1016/j.envres.2024.118943. Online ahead of print.ABSTRACTBiogenic manganese oxides (BioMnOx) have attracted considerable attention as active oxidants, adsorbents, and catalysts. However, characteristics and mechanisms of nitrification-denitrification in biological redox reactions mediated by different concentrations of BioMnOx are still unclear. Fate of nutrients (e.g., NH4+-N, TP, NO3--N) and COD were investigated through different concentrations of BioMnOx produced by Mn(II) in the moving bed biofilm reactor (MBBR). 34% and 89.2%, 37.8% and 89.8%, 57.3% and 88.9%, and 62...
Source: Environmental Research - April 17, 2024 Category: Environmental Health Authors: Ying Cao Sicheng Shao Zhiqing Ye Chunxiao Wang Dandan Pan Xiangwei Wu Source Type: research
Manganism due to occupational welding fume exposure: a case report
In this report, the aim is to emphasize the significance of taking a comprehensive occupational history and to draw attention the potential health hazards associated with Mn and its compounds.PMID:38631849 | DOI:10.2486/indhealth.2023-0171 (Source: Industrial Health)
Source: Industrial Health - April 17, 2024 Category: Occupational Health Authors: Mediha Anna ç Asildağ G ülden Sari Adem Koyuncu Ceprail Şimşek Source Type: research
