Investigation of dielectric and electrochemical behavior of CaCu3−xMnxTi4O12 (x = 0, 1) ceramic synthesized through semi-wet route
In this study, we report the effect of manganese doped and non-doped CCTO ceramic (CaCu3−xMnxTi4O12, x = 0, 1) synthesized through semi-wet route. The phase formation of both ceramic were confirmed by the XRD pattern. The Microstructural studies (CCTO and CCMTO) were performed through HR-SEM, TEM, and AFM. Both the sample were characterized by dielectric properties, cyclic voltammetry and Electrochemical Impedance spectroscopy. The dielectric properties (ε′) were observed to be ε′ ∼ 104 and 5 × 103 over the wide range of frequency 10 Hz to 100 kHz of CCTO and CCMTO ce...
Source: Materials Chemistry and Physics - February 15, 2020 Category: Materials Science Source Type: research

The first and low cost copper Schiff base/manganese oxide bio nanocomposite from unwanted plants as a robust industrial catalyst.
Authors: Naeimi A, Abbasspour S, Torabizadeh SA Abstract In this paper, the first bio-nano colloid including manganese oxide nanoparticles and copper nanocomplex in the presence of Amaranthus spinosus as one unwanted plant was prepared (Mn3O4/CuL bio-nanocolloid). As-prepared bio nanocolloid was analysed completely by different techniques such as FT-IR, ICP-AES, SEM, EDX, TEM and elemental analysis to have the size, structure, morphology and elements in this compound. This bio-nanocolloid showed high catalytic activity towards green oxidation reactions of alcohols using hydrogen peroxide under solvent free conditio...
Source: Artificial Cells, Nanomedicine and Biotechnology - February 14, 2020 Category: Biotechnology Tags: Artif Cells Nanomed Biotechnol Source Type: research

Nitroxides affect neurological deficits and lesion size induced by a rat model of traumatic brain injury
In conclusion, DCTEIO significantly improved tissue repair and preserved neurological function in rats with TBI possibly via a mitophagy mechanism. This study provides evidence for DCTEIO as a promising new option to alleviate lesion severity after moderate TBI, which is not actively treated. (Source: Nitric Oxide)
Source: Nitric Oxide - February 14, 2020 Category: Chemistry Source Type: research

[ASAP] Encapsulation of Flavin Cofactor within a Manganese Porphyrin-Based Metal –Organic Polyhedron for Reductive Dioxygen Activation
Inorganic ChemistryDOI: 10.1021/acs.inorgchem.9b03430 (Source: Inorganic Chemistry)
Source: Inorganic Chemistry - February 14, 2020 Category: Chemistry Authors: LiLi Li †, Huimin Guo†, Linlin Yang‡, Xuezhao Li†, Hailing Wang†, and Cheng He*† Source Type: research

Correction: A silver –manganese dual co-catalyst for selective reduction of carbon dioxide into carbon monoxide over a potassium hexatitanate photocatalyst with water
This article is licensed under aCreative Commons Attribution 3.0 Unported Licence.Xing Zhu, Akira Yamamoto, Shota Imai, Atsuhiro Tanaka, Hiroshi Kominami, Hisao Yoshida To cite this article before page numbers are assigned, use the DOI form of citation above. The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Chem. Commun. latest articles)
Source: RSC - Chem. Commun. latest articles - February 14, 2020 Category: Chemistry Authors: Xing Zhu Source Type: research

Potentially toxic elements ’ occurrence and risk assessment through water and soil of Chitral urban environment, Pakistan: a case study
This study investigated the concentrations of potentially toxic elements (PTE) including copper (Cu), chromium (Cr), cobalt (Co), cadmium (Cd), nickel (Ni), iron (Fe), zinc (Zn), lead (Pb), molybdenum (Mo) and manganese (Mn) in water and soil of the  Chitral city, Pakistan. For this purpose, water (n = 66) and soil (n = 48) samples were collected from various locations of the Chitral city and analyzed for the PTE concentrations. Determined PTE concentrations were evaluated for the human and ecological potential risk. Results revealed that hazard quotient through water consumption was less t...
Source: Environmental Geochemistry and Health - February 14, 2020 Category: Environmental Health Source Type: research

Molecules, Vol. 25, Pages 846: Structural Diversity of Nickel and Manganese Chloride Complexes with Pyridin-2-One
riček Reactions of NiCl2·6H2O and pyridin-2-one (C5H5NO = Hhp) afforded novel molecular complexes, i.e., mononuclear [NiCl2(Hhp)4] (1), dinuclear [NiCl2(Hhp)(H2O)2]2.2Hhp (3) and [Ni2Cl4(Hhp)5]·2MeCN (4), and an ionic complex [Ni(Hhp)6]Cl2 (2). Single-crystal X-ray analyses revealed two modes of Hhp ligation in these complexes: a monodentate coordination of carbonyl oxygen in all of them and an additional µ2-oxygen bridging coordination in the dinuclear complex 4. Three bridging molecules of Hhp span two nickel(II) ions in 4 with a 2.9802 (5) Å separation of th...
Source: Molecules - February 14, 2020 Category: Chemistry Authors: Sa ša Petriček Tags: Article Source Type: research

Effect of an injectable trace mineral supplement on the immune response of dairy calves
Publication date: Available online 13 February 2020Source: Research in Veterinary ScienceAuthor(s): Andrew Bates, Matt Wells, Richard Laven, Line Ferriman, Axel Heiser, Clare FitzpatrickAbstractOn a spring calving, pastoral dairy farm, the first 40 heifer calves born after calving mid-point (50% of the herd calved) were blood sampled within 24 h. Thirty were selected, using stratified randomisation to form two equal groups (treatment and control) with the same distribution of serum total protein, copper, selenium, zinc, and manganese concentrations, age and breed. From the remaining 10 calves, five were randomly selected...
Source: Research in Veterinary Science - February 13, 2020 Category: Veterinary Research Source Type: research

ROMP polymer supported manganese porphyrins: Influence of CC bonds along polymer chains on catalytic behavior in oxidation of low concentration Fe2+
Publication date: Available online 12 February 2020Source: Reactive and Functional PolymersAuthor(s): Fanfan Li, Xuan Wang, Huanhuan Zhao, Yanwu ZhangAbstractOne unsaturated polymer support was prepared through ring opening metathesis polymerization (ROMP) of norbornene-2,3-dip-toluene sulfonate initiated by Grubbs 2nd initiator and manganese porphyrins were immobilized on polymer through transesterification reaction. To investigate the effect of CC bonds along polymer chains on the catalytic behavior, the obtained polymer supported catalyst (P-PPIXMnCl) was applied in oxidation of low concentration Fe2+ to mimic catalytic...
Source: Reactive and Functional Polymers - February 13, 2020 Category: Chemistry Source Type: research

Plastic Pellets Trigger Feeding Responses in Sea Anemones
Publication date: Available online 12 February 2020Source: Aquatic ToxicologyAuthor(s): Zoie Diana, Natasha Sawickij, Nelson A. Rivera, Heileen Hsu-Kim, Daniel RittschofAbstractMultiple mechanisms for plastic consumption by marine animals have been proposed based on the feeding cues and behavior of the animal studied. We investigated plastic consumption in sea anemones. We found that anemones readily consumed pristine National Institute of Standards and Technology low-density polyethylene and high-density polyethylene II and III pre-production pellets. Anemone weight, crown area, and number of tentacles were measured befor...
Source: Aquatic Toxicology - February 13, 2020 Category: Toxicology Source Type: research

[ASAP] Highly Efficient, Stable, and Recyclable Hydrogen Manganese Oxide/Cellulose Film for the Extraction of Lithium from Seawater
ACS Applied Materials& InterfacesDOI: 10.1021/acsami.9b21612 (Source: ACS Applied Materials and Interfaces)
Source: ACS Applied Materials and Interfaces - February 13, 2020 Category: Materials Science Authors: Lian Tang †, Shaodong Huang†, Yan Wang‡, Daxin Liang*†, Yudong Li†, Jian Li†, Yonggui Wang†, Yanjun Xie*†, and Wei Wang*§ Source Type: research

Synthesis, characterization, DFT study, conductivity and effects of humidity on CO2 sensing properties of the novel tetrakis-[2-(dibenzylamino)ethoxyl] substituted metallophthalocyanines
Publication date: Available online 11 February 2020Source: Sensors and Actuators B: ChemicalAuthor(s): Sema Şenoğlu, Metin Özer, Fatih Dumludağ, Nursel Acar, Bekir Salih, Özer BekaroğluAbstractNovel tetrakis-[2-(dibenzylamino)ethoxyl] substituted nickel (II), cobalt (II) and manganese (II) phthalocyanines were synthesized by using 4-(2-(dibenzylamino)ethoxy)phthalonitrile with corresponding metal salts in 2-N, N-dimethylaminoethanol. New phthalonitrile ligand was prepared from 2-(dibenzylamino)ethan-1-ol and 4-nitrophthalonitrile in acetonitrile at reflux temperature using potassium carbonate as catalyst. The...
Source: Sensors and Actuators B: Chemical - February 13, 2020 Category: Chemistry Source Type: research

Impedance studies of Li+ diffusion in nickel manganese cobalt oxide (NMC) during charge/discharge cycles
Publication date: Available online 11 February 2020Source: Journal of Electroanalytical ChemistryAuthor(s): Valérie Charbonneau, Andrzej Lasia, Gessie BrisardAbstractOne of the diagnostic tools of lithium-ion batteries aging process is the determination of the solid-state lithium ion diffusion coefficient. This parameter was calculated for LiNi1/3Mn1/3Co1/3O2 secondary particles. Electrochemical impedance spectroscopy of three-electrode Swagelok cells was used to monitor the evolution of parameters such as the contact resistance, the charge transfer resistance, the double layer capacitance and the lithium ion diffus...
Source: Journal of Electroanalytical Chemistry - February 13, 2020 Category: Chemistry Source Type: research

Transition metal complexes as proteasome inhibitors for cancer treatment
Publication date: Available online 11 February 2020Source: Inorganica Chimica ActaAuthor(s): Shagufta, Irshad AhmadAbstractThe discovery of cisplatin, a platinum-based drug, was a major breakthrough in cancer treatment strategies. However, the toxicity and drug resistance associated with cisplatin regulated the drug discovery research towards the rationale development of metal-containing agents with more specific activity and less toxicity and mode of action different from cisplatin and its derivatives. Consequently, the ubiquitin-proteasome pathway (UPP) developed as a novel and encouraging cancer treatment target. The me...
Source: Inorganica Chimica Acta - February 13, 2020 Category: Chemistry Source Type: research

Structures of mixed manganese ruthenium oxides (Mn1 −xRux)O2 crystallised under acidic hydrothermal conditions
This article is licensed under aCreative Commons Attribution-NonCommercial 3.0 Unported Licence.Lucy K. McLeod, Geoffrey H. Spikes, Reza J. Kashtiban, Marc Walker, Alan V. Chadwick, Jonathan D. B. Sharman, Richard I. Walton Redox hydrothermal chemistry at low pH yields a solid-solution series of β-(Mn1 −xRux)O2 materials, with structures verified by diffraction and spectroscopy. To cite this article before page numbers are assigned, use the DOI form of citation above. The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Dalton Trans. latest articles)
Source: RSC - Dalton Trans. latest articles - February 13, 2020 Category: Chemistry Authors: Lucy K. McLeod Source Type: research

Synthesis, crystal structures and magnetic and electrochemiluminescence properties of three manganese(II) complexes
Three novel complexes, namely, penta- μ -acetato-bis( μ 2-2-{[2-(6-chloropyridin-2-yl)hydrazinylidene]methyl}-6-methoxyphenolato)- μ -formato-tetramanganese(II), [Mn4(C13H11ClN3O2)2(C2H3O2)5.168(CHO2)0.832], 1, hexa- μ 2-acetato-bis( μ 2-2-{[2-(6-bromopyridin-2-yl)hydrazinylidene]methyl}-6-methoxyphenolato)tetramanganese(II), [Mn4(C13H11BrN3O2)2(C2H3O2)6], 2, and catena-poly[[ μ 2-acetato-acetatoaqua( μ 2-2-{[2-(6-chloropyridin-2-yl)hydrazinylidene]methyl}-6-methoxyphenolato)dimanganese(II)]- μ 2-acetato], [Mn2(C13H11ClN3O2)(C2H3O2)3(H2O)]n, 3, have been synthesized using solvothermal methods. Compl...
Source: Acta Crystallographica Section C - February 13, 2020 Category: Chemistry Authors: Chen, Y. Zhang, S. Xiao, Y. Zhang, S. Tags: magnetic property electrochemicaluminescence ECL crystal structure manganese one-dimensional coordination polymer research papers Source Type: research

Molecules, Vol. 25, Pages 819: Green Synthesis of Ag-MnO2 Nanoparticles using Chelidonium majus and Vinca minor Extracts and Their In Vitro Cytotoxicity
Soran Pârvu Medicinal plants are often used as reducing agents to prepare metal nanoparticles through green-synthesis due to natural compounds and their potential as chemotherapeutic drugs. Thus, three types of eco-friendly Ag-MnO2 nanoparticles (Ag-MnO2NPs) were synthesized using C. majus (CmNPs), V. minor (VmNPs), and a 1:1 mixture of the two extracts (MNPs). These NPs were characterized using S/TEM, EDX, XRD, and FTIR methods, and their biological activity was assessed in vitro on normal keratinocytes (HaCaT) and skin melanoma cells (A375). All synthesized NPs had manganese oxide in the middle, and silver...
Source: Molecules - February 13, 2020 Category: Chemistry Authors: Cior îță Suciu Macavei Kacso Lung Soran P ârvu Tags: Article Source Type: research

Correction: A silver-manganese dual co-catalyst for selective reduction of carbon dioxide into carbon monoxide over a potassium hexatitanate photocatalyst with water.
Abstract Correction for 'A silver-manganese dual co-catalyst for selective reduction of carbon dioxide into carbon monoxide over a potassium hexatitanate photocatalyst with water' by Xing Zhu et al., Chem. Commun., 2019, 55, 13514-13517. PMID: 32052816 [PubMed - as supplied by publisher] (Source: Chemical Communications)
Source: Chemical Communications - February 13, 2020 Category: Chemistry Authors: Zhu X, Yamamoto A, Imai S, Tanaka A, Kominami H, Yoshida H Tags: Chem Commun (Camb) Source Type: research

Quantitative investigation of ZnO nanoparticle dissolution in the presence of δ-MnO2.
In this study, dissolution and transformation of ZnO NPs in the presence of δ-MnO2, an abundant and ubiquitous manganese (Mn) oxide mineral, was investigated via a suite of techniques covering bulk to molecular scales. Dissolution kinetics indicated that the presence of δ-MnO2 significantly affected ZnO NP dissolution rate/trend and equilibrium Zn2+ concentration, which were found to be mainly dependent on the concentration and mass ratio of ZnO NPs and δ-MnO2. Approximately 300 mg ZnO NPs per g δ-MnO2 was expected for ZnO NP uptake at pH 7.0 via ZnO NP dissolution and surface Zn2+ adsorpt...
Source: Environmental Science and Pollution Research International - February 13, 2020 Category: Environmental Health Authors: Wan B, Hu Z, Yan Y, Liu F, Tan W, Feng X Tags: Environ Sci Pollut Res Int Source Type: research

The first and low cost copper Schiff base/manganese oxide bio nanocomposite from unwanted plants as a robust industrial catalyst
Volume 48, Issue 1, December 2020, Page 560-571 . (Source: Artificial Cells, Blood Substitutes, and Biotechnology)
Source: Artificial Cells, Blood Substitutes, and Biotechnology - February 12, 2020 Category: Biotechnology Authors: Atena Naeimi Sedighe Abbasspour Seyedeh Atekeh Torabizadeh Source Type: research

Multi-metal nutrient restriction and crosstalk in metallostasis systems in microbial pathogens.
Abstract Transition metals from manganese to zinc function as catalytic and structural cofactors for an amazing diversity of proteins and enzymes, and thus are essential for all forms of life. During infection, inflammatory host proteins limit the accessibility of multiple transition metals to invading pathogens in a process termed nutritional immunity. In order to respond to host-mediated metal starvation, bacteria employ both protein and RNA-based mechanisms to sense prevailing transition metal concentrations that collectively regulate systems-level strategies to maintain cellular metallostasis. In this review, ...
Source: Current Opinion in Microbiology - February 12, 2020 Category: Microbiology Authors: Jordan MR, Wang J, Capdevila DA, Giedroc DP Tags: Curr Opin Microbiol Source Type: research

The effects of the genetic polymorphisms of antioxidant enzymes on susceptibility to papillary thyroid carcinoma
AbstractSeveral lines of evidences have indicated that inflammation play an important role in the carcinogenesis. During the inflammatory processes, free radical species are produced from oxidative stress. In normal conditions, enzymatic and nonenzymatic antioxidants remove these products. Manganese superoxide dismutase (MnSOD), glutathione peroxidase ‐1 (GPx ‐1), and catalase (CAT) are three important enzymes. Therefore, this study aimed to evaluate the effects ofMnSOD (SOD2),GPX ‐1, andCAT genetic polymorphisms on papillary thyroid carcinoma (PTC) susceptibility. A total of 134 patients with PTC and 151 healthy con...
Source: IUBMB Life - February 11, 2020 Category: Research Authors: Saeedeh Salimi, Mahdiyeh Harati ‐Sadegh, Moein Eskandari, Zahra Heidari Tags: RESEARCH COMMUNICATION Source Type: research

Surface Coating of LiMn2O4 Cathodes by Garnet Electrolytes for Improving Cycle Stability of Solid Lithium Batteries
J. Mater. Chem. A, 2020, Accepted Manuscript DOI: 10.1039/C9TA11203K, CommunicationZhijie Bi, Ning Zhao, Lina Ma, Chuan Shi, Zhengqian Fu, Fangfang Xu, Xiangxin Guo Spinel lithium manganese oxide (LiMn2O4) is an attractive cathode material, which has advantages including low cost, environmental friendliness, easy synthesis and shortcomings including inferior cycle stability at the elevated temperature... The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - J. Mater. Chem. latest articles)
Source: RSC - J. Mater. Chem. latest articles - February 11, 2020 Category: Chemistry Authors: Zhijie Bi Source Type: research

Uranium(VI) recovery from acidic leach liquor using manganese oxide coated zeolite (MOCZ) modified with amine
AbstractManganese oxide coated zeolite modified with trioctyl amine (MOCZ/TOA) was tested for adsorption of uranium. Different experiments were performed to evaluate the optimum adsorption conditions; pH, dose, uranium concentration, temperature variation and contact time. Maximum adsorption capacity reached 99  mg/g according to Langmuir model. The study of thermodynamic parameters showed that sorption process is non spontaneous, exothermic and random. Studies on process kinetics showed that the process obeys pseudo-second order model. Uranium desorption was accomplished using 0.3 M H2SO4. Optimum conditions wer...
Source: Journal of Radioanalytical and Nuclear Chemistry - February 11, 2020 Category: Nuclear Medicine Source Type: research

Increased antioxidant response in medium-chain acyl-CoA dehydrogenase deficiency: does lipoic acid have a protective role?
CONCLUSIONS: Based on these findings, we raise the interesting hypothesis that increased PDC-bound lipoic acid, synthesized from accumulated octanoic acid in MCADD, may affect the cellular antioxidant pool in MCADD. PMID: 32045933 [PubMed - as supplied by publisher] (Source: Pediatric Research)
Source: Pediatric Research - February 11, 2020 Category: Pediatrics Authors: Nochi Z, Birkler RID, Fernandez-Guerra P, Hansen J, Wibrand F, Corydon TJ, Gregersen N, Olsen RKJ Tags: Pediatr Res Source Type: research

The effects of vanadium substitution on one-dimensional tunnel structures of cryptomelane: Combined TEM and DFT study
Publication date: Available online 4 February 2020Source: Nano EnergyAuthor(s): Shi-Ze Yang, Killian R. Tallman, Ping Liu, Diana M. Lutz, Bingjie Zhang, Sung Joo Kim, Lijun Wu, Amy C. Marschilok, Esther S. Takeuchi, Kenneth J. Takeuchi, Yimei ZhuAbstractRational design of energy storage materials requires mechanistic understanding which relies on atomic scale characterization of structure and defects. Here we utilize vanadium (V)-substituted one-dimensional cryptomelane as a model material to study structural features critical to electrochemical reversibility of the cathode in lithium-ion batteries. We found the substituti...
Source: Nano Energy - February 10, 2020 Category: Nanotechnology Source Type: research

1-D manganese(II)-terpyridine coordination polymers as precatalysts for hydrofunctionalisation of carbonyl compounds
Dalton Trans., 2020, Advance Article DOI: 10.1039/C9DT04637B, PaperGuoqi Zhang, Haisu Zeng, Sihan Li, Jahvon Johnson, Zixuan Mo, Michelle C. Neary, Shengping Zheng Efficient hydroboration and hydrosilylation of ketones and aldehydes has been achieved using a MnII-coordination polymer as precatalyst under mild conditions. To cite this article before page numbers are assigned, use the DOI form of citation above. The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Dalton Trans. latest articles)
Source: RSC - Dalton Trans. latest articles - February 10, 2020 Category: Chemistry Authors: Guoqi Zhang Source Type: research

Synthesis, application and mechanisms of Ferro-Manganese binary oxide in water remediation: A review
Publication date: 15 May 2020Source: Chemical Engineering Journal, Volume 388Author(s): Yaoning Chen, Yuqing Liu, Yuanping Li, Yanxin Wu, Yanrong Chen, Yihuan Liu, Jiachao Zhang, Fangting Xu, Meiling Li, Linshenzhang LiAbstractIn recent years, water pollution has been attracted public attention being that its harm to human and ecology. Ferro-Manganese binary oxide (FMBO) with the characteristics of much active sites and high affinity to contaminants has been widely applied in wastewater treatment. This paper aims to review FMBO and its ramification, collectively named as FMBO-based materials to remove various pollutants fr...
Source: Chemical Engineering Journal - February 10, 2020 Category: Chemistry Source Type: research

Amphiphilic polymer based nanoformulations of mancozeb for management of early blight in tomato.
Abstract Controlled release (CR) nanoformulations of Mancozeb (Manganese-zinc double salt of N, N-bisdithiocarbamic acid), a protective fungicide, have been developed using poly (ethylene glycols) (PEGs) based functionalized amphiphilic copolymers and evaluated for the management of early blight in tomato. During the field experiment, it was observed that number of infected leaflets/plants were less in developed formulation treated plants as compared to commercial products. Number of infected leaflets per plant was 2.40-4.60 and the number of fruits per plant were 6.40-9.00 at 50 mg L-1, whereas at 100&thin...
Source: Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes - February 10, 2020 Category: Environmental Health Authors: Majumder S, Kaushik P, Rana VS, Sinha P, Shakil NA Tags: J Environ Sci Health B Source Type: research

Impacts of anthropogenic activities and calculation of the relative risk of violating surface water quality standards established by environmental legislation: a case study from the Piracicaba and Paraopeba river basins, Brazil.
Abstract The nonparametric test of Kruskal-Wallis and relative risk were used to evaluate surface water quality allowed to an identification of the most degraded water bodies in Piracicaba River and Paraopeba River basins, two important hydrographic basins in Brazil. Total manganese, dissolved iron, and fecal contamination indicator were considered the most relevant parameters for the characterization of water quality in the basins. The Peixe River, in Nova Era, and Pedras Creek, in Betim, were considered the most impacted water bodies in the Piracicaba River and Paraopeba River basins, respectively. The analysis ...
Source: Environmental Science and Pollution Research International - February 10, 2020 Category: Environmental Health Authors: Soares ALC, Pinto CC, Oliveira SC Tags: Environ Sci Pollut Res Int Source Type: research

Cation distribution and structural study of copper doped magnesium-manganese nanoferrites
Publication date: Available online 8 February 2020Source: Materials Today: ProceedingsAuthor(s): Mehak, Somnath, Indu Sharma, Khalid Mujasam Batoo, Gagan KumarAbstractIn the present work, the series of copper doped Mg-Mn ferrite nanoparticles, Mg0.9Mn0.1CuxFe2-xO4 (x = 0.0, 0.1, 0.2), have been first time prepared by using technique of solution combustion. A synthesized sample was characterized by scanning electron microscopy and x-ray diffraction. The copper content substitution has resulted an increase in size of particle (31.63–48.49 nm) as well as lattice parameter (8.38–8.42 Å). The method of...
Source: Materials Today: Proceedings - February 9, 2020 Category: Materials Science Source Type: research

Nano-sulfated zirconia catalyzed biodiesel production from tannery waste sheep fat.
This study makes use of tannery waste to produce biodiesel using a nano-sulfated zirconia catalyst (ferric-manganese-doped sulfated zirconia). It was through a modified wetness impregnation method that the catalyst was prepared which was then characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FTIR). The catalytic property of the synthesized catalyst was determined by using it to produce biodiesel from tannery waste sheep fat. A study was carried out to find the effect of the different parameters affecting the process. Optimized conditions of 15:1 metha...
Source: Environmental Science and Pollution Research International - February 9, 2020 Category: Environmental Health Authors: Booramurthy VK, Kasimani R, Pandian S, Ragunathan B Tags: Environ Sci Pollut Res Int Source Type: research

Synthesis of manganese ferrite from spent Zn–MnO2 batteries and its application as a catalyst in heterogeneous photo-Fenton processes
This study presents a green method to produce photocatalytic materials that may find application in wastewater treatment.Graphical abstract (Source: Journal of Environmental Chemical Engineering)
Source: Journal of Environmental Chemical Engineering - February 8, 2020 Category: Chemistry Source Type: research

Insight into the role of interfacial reconstruction of manganese oxides toward enhanced electrochemical capacitors
Publication date: 15 May 2020Source: Chemical Engineering Journal, Volume 388Author(s): Jie Zhang, Wenli Li, Dandan Hu, Tofik Ahmed Shifa, Shuaichao Chen, Guangwen Xu, Yanbin CuiAbstractThe pursuit of facile synthetic methods for systematic control over the morphology and crystal phase of nanostructures has attracted a tremendous amount of interest. By utilizing the acid-induced layer-to-tunnel transition method of MnO2, we here for the first time report multi-layered sawtooth-shape MnO2 with relatively high mass loading. The optimized electrode exhibits durable activity with enhanced surface area, electrical conductivity ...
Source: Chemical Engineering Journal - February 8, 2020 Category: Chemistry Source Type: research

The effects of the genetic polymorphisms of antioxidant enzymes on susceptibility to papillary thyroid carcinoma
AbstractSeveral lines of evidences have indicated that inflammation play an important role in the carcinogenesis. During the inflammatory processes, free radical species are produced from oxidative stress. In normal conditions, enzymatic and nonenzymatic antioxidants remove these products. Manganese superoxide dismutase (MnSOD), glutathione peroxidase ‐1 (GPx ‐1), and catalase (CAT) are three important enzymes. Therefore, this study aimed to evaluate the effects ofMnSOD (SOD2),GPX ‐1, andCAT genetic polymorphisms on papillary thyroid carcinoma (PTC) susceptibility. A total of 134 patients with PTC and 151 healthy con...
Source: IUBMB Life - February 8, 2020 Category: Research Authors: Saeedeh Salimi, Mahdiyeh Harati ‐Sadegh, Moein Eskandari, Zahra Heidari Tags: RESEARCH COMMUNICATION Source Type: research

Nutritional characterization of Butternut squash (Cucurbita moschata D.): Effect of variety (Ariel vs. Pluto) and farming type (conventional vs. organic)
Publication date: Available online 3 February 2020Source: Food Research InternationalAuthor(s): Jorge Armesto, Gabriele Rocchetti, Biancamaria Senizza, Mirian Pateiro, Francisco J. Barba, Rubén Domínguez, Luigi Lucini, José M. LorenzoAbstractFarming systems and cultivar types are two of the main factors able to affect the nutritional quality of plant foods for human nutrition. Therefore, the aim of this study was to compare the impact of two unexplored variety (namely Ariel and Pluto) and farming type (conventional and organic) on physicochemical parameters, chemical and mineral composition, water- and...
Source: Food Research International - February 7, 2020 Category: Food Science Source Type: research

Doping effect of manganese on the structural and electrochemical properties of Li2FeSiO4 cathode materials for rechargeable Li-ion batteries
Publication date: Available online 5 February 2020Source: Radiation Physics and ChemistryAuthor(s): Narinthorn Wiriya, Patcharapohn Chantrasuwan, Songyoot Kaewmala, Jeffrey Nash, Sutham Srilomsak, Nonglak Meethong, Wanwisa LimphiratAbstractLi2MSiO4, with two Li ions per molecule operates on both of the M2+/M3+ and M3+/M4+ redox couples resulting in a higher theoretical capacity that is > 300 mAh.g−1. In this work, synthesis of a Li2Fe1-xMnxSiO4/C (LFMS) composite was done using a sol-gel method. XRD patterns can be indexed in the monoclinic phase with P21/n space group. Li2Fe0.8Mn0.2SiO4/C provides higher disc...
Source: Radiation Physics and Chemistry - February 7, 2020 Category: Physics Source Type: research

Melamine sponge derived porous carbon monoliths with NiMn oxides for high performance supercapacitor
Publication date: Available online 5 February 2020Source: Chinese Chemical LettersAuthor(s): Qianyuan Shan, Wangchen Huo, Man Shen, Chuan Jing, Yan Peng, Huayan Pu, Yuxin ZhangAbstractSupercapacitors with good electrochemical performance and flexibility are in great demand. In this paper, the concept of preparing 3D porous carbon monoliths via direct calcination of melamine sponge is presented. This preparation method is simple and has good control of the structure. Porous carbon composite nickel-manganese oxides can be obtained by hydrothermal method followed with calcination. The electrochemical performances were tested ...
Source: Chinese Chemical Letters - February 7, 2020 Category: Chemistry Source Type: research

Molecules, Vol. 25, Pages 723: Iron-Catalyzed Cross-Coupling of Bis-(aryl)manganese Nucleophiles with Alkenyl Halides: Optimization and Mechanistic Investigations
efèvre Various substituted bis-(aryl)manganese species were prepared from aryl bromides by one-pot insertion of magnesium turnings in the presence of LiCl and in situ trans-metalation with MnCl2 in THF at −5 °C within 2 h. These bis-(aryl)manganese reagents undergo smooth iron-catalyzed cross-couplings using 10 mol% Fe(acac)3 with various functionalized alkenyl iodides and bromides in 1 h at 25 °C. The aryl-alkenyl cross-coupling reaction mechanism was thoroughly investigated through paramagnetic 1H-NMR, which identified the key role of tris-coordinated ate-iron(II) species ...
Source: Molecules - February 7, 2020 Category: Chemistry Authors: Rousseau Desaintjean Knochel Lef èvre Tags: Article Source Type: research

IJERPH, Vol. 17, Pages 1070: Contamination Level, Ecological Risk, and Source Identification of Heavy Metals in the Hyporheic Zone of the Weihe River, China
This study focuses on heavy metals in the hyporheic sediment of the Weihe River, China. Contamination levels of metals were examined by using “geo-accumulation index, enrichment factor, and contamination factor” while ecological risk of metals were determined by “potential ecological risk and risk index.” The pollutant accumulation of metals ranked as follows: “manganese (Mn) > chromium (Cr) > zinc (Zn) >copper (Cu) > nickel (Ni) > arsenic (As) > lead (Pb)”. The geo-accumulat...
Source: International Journal of Environmental Research and Public Health - February 7, 2020 Category: Environmental Health Authors: Ahamad Song Sun Wang Mehmood Sajid Su Khan Tags: Article Source Type: research

Low temperature dissociation of CO on manganese promoted cobalt(poly).
Abstract We observe that metallic manganese alloyed with polycrystalline cobalt promotes the dissociation of CO. Increasing coverages of Mn on Co facillitate stronger molecular CO binding energies and stronger C(ad) + O(ad) binding energies. These findings show the role of metallic manganese in promoting model Co Fischer-Tropsch catalysis. PMID: 32031560 [PubMed - as supplied by publisher] (Source: Chemical Communications)
Source: Chemical Communications - February 7, 2020 Category: Chemistry Authors: Ciufo RA, Han S, Floto ME, Henkelman G, Mullins CB Tags: Chem Commun (Camb) Source Type: research

Synthesis, crystal structure and antibacterial activity of manganese(III) and cobalt(III) complexes containing pentadentate Schiff bases of a common amine and thiocyanate
(Source: Journal of Coordination Chemistry)
Source: Journal of Coordination Chemistry - February 6, 2020 Category: Chemistry Authors: Mandal, Santanu Sen, Tinku Mandal, Uttam Bhunia, Dipankar Rizzoli, Corrado Bandyopadhyay, Debasis Source Type: research

Decolourisation of dyes in greywater by mycoremediation and mycosorption process of fungi from peatland; primary study
Publication date: Available online 4 February 2020Source: Materials Today: ProceedingsAuthor(s): Efaq Noman, Balkis A. Talip, Adel Al-Gheethi, Radin Mohamed, H. NagaoAbstractThe current study investigated the potential of fungi from peatland for decolorizing dyes in the artificial greywater as a function of oxidative enzymes which included laccase (Lac), manganese peroxidase (MnP), lignin peroxidase (LiP). The fungal isolates were obtained from the peatland on potato dextrose agar (PDA) and purified using single spore technique. Remazol Brilliant Blue R (RBBR), Methylene blue (MB) and Congo red (CR) were used as model...
Source: Materials Today: Proceedings - February 6, 2020 Category: Materials Science Source Type: research

3d Transition Metal Catalyzed Hydrogenation of Nitriles and Alkynes.
Abstract Selective hydrogenation of nitriles and alkynes is crucial considering the vast applications of reduced products in industries and in the synthesis bioactive compounds. Particularly, the late 3d transition metal catalysts (manganese, iron, cobalt, nickel and copper) have shown promising activity for the hydrogenation of nitriles to primary amines, secondary amines and imines. Similarly, semihydrogenation of alkynes to E - and Z -alkenes by 3d metals is adequately successful both via the transfer hydrogenation and by using molecular hydrogen. The emergence of 3d transition metals in the selective synthesis...
Source: Chemistry, an Asian Journal - February 6, 2020 Category: Chemistry Authors: Sharma DM, Punji B Tags: Chem Asian J Source Type: research

Do Heavy Metals Accumulated in Saliva Involve in the Etiopathogenesis of Recurrent Aphthous Stomatitis?
er F, Akdeniz N Abstract Recurrent aphthous stomatitis (RAS) is one of the most common diseases of oral mucosa characterized by recurrent painful ulcers. Although many factors have been implicated in its etiology, they are not fully identified. To investigate the involvement of heavy metals accumulated in saliva in the etiopathogenesis of RAS. This is a prospective, comparative, and controlled clinical study investigating the relationship between heavy metal exposure and RAS. The study consisted of 75 patients with idiopathic RAS who presented to our clinic with recurrent oral wound complaints and 74 healthy volun...
Source: Biological Trace Element Research - February 6, 2020 Category: Biology Authors: Öner Ü, Özdemir Ş, Öner F, Akdeniz N Tags: Biol Trace Elem Res Source Type: research

Manganese (II) removal from aqueous solutions by Cladosporium halotolerans and Hypocrea jecorina
This article reported the Mn removal of two fungi strains isolated from mine wastewater. ITS rRNA region sequencing identified the fungi strains as Cladosporium halotolerans and Hypocrea jecorina. Mn2+ removal assays were performed in Sabouraud broth with 50 mg L-1 Mn2+ supplemented and bioleaching assays using MnO2 instead of MnSO4 at the same conditions. C. halotolerans removed 96% of 50 mg L-1 Mn2+ at two weeks without MnO2 bioleaching with 649.9 mg of biomass and H. jecorina removed about 50% of Mn2+ in 21 days from initial 50 mg of Mn2+ L-1 with 316.8&thin...
Source: Biotechnology Reports - February 5, 2020 Category: Biotechnology Source Type: research

Manganese(II) Complex of an oxygen –Nitrogen Donor Schiff base ligand showing efficient Catechol Oxidase Activity: Synthesis, Spectroscopic and Kinetic Study
New J. Chem., 2020, Accepted Manuscript DOI: 10.1039/C9NJ04591K, PaperPiyali Adak, Antu Mondal, Shyamal Kumar Chattopadhyay Tridentate O,N,O donor Schiff base ligand (E)-1-(2-hydroxybenzylidene)semicarbazide (H2L1) and its Mn(II) complex have been synthesized. Both the ligand and the complex have been characterized by analytical and spectroscopic techniques. X-ray... The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - New J. Chem. latest articles)
Source: RSC - New J. Chem. latest articles - February 5, 2020 Category: Chemistry Authors: Piyali Adak Source Type: research

[ASAP] Titania –Samarium–Manganese Composite Oxide for the Low-Temperature Selective Catalytic Reduction of NO with NH < sub > 3 < /sub >
Environmental Science& TechnologyDOI: 10.1021/acs.est.9b06701 (Source: Environmental Science and Technology)
Source: Environmental Science and Technology - February 5, 2020 Category: Environmental Health Authors: managing.editor at est.acs.org (American Chemical Society) Source Type: research

Enhanced mechanical energy harvesting capability in sodium bismuth titanate based lead-free piezoelectric
Publication date: 5 June 2020Source: Journal of Alloys and Compounds, Volume 825Author(s): Yong Zhang, Xiaofang Liu, Ge Wang, Yang Li, Shujun Zhang, Dawei Wang, Huajun SunAbstractThe demand for high-performance lead-free piezoelectric materials towards mechanical energy harvesting has been driven by the continuous requirements of self-powered applications such as wireless sensor network systems and biomedical devices, etc. Herein, manganese-doped sodium bismuth titanate based lead-free ternary piezoelectric system 0.92(Na0.5Bi0.5)TiO3-0.04(K0.5Bi0.5)TiO3-0.04BaTiO3 (NBT-KBT-BT) was developed and the critical role of mangan...
Source: Journal of Alloys and Compounds - February 5, 2020 Category: Chemistry Source Type: research

Applying machine learning algorithms in estimating the performance of heterogeneous, multi-component materials as oxygen carriers for chemical-looping processes
Publication date: 1 May 2020Source: Chemical Engineering Journal, Volume 387Author(s): Yongliang Yan, Tobias Mattisson, Patrick Moldenhauer, Edward J. Anthony, Peter T. CloughAbstractHeterogeneous, multi-component materials such as industrial tailings or by-products, along with naturally occurring materials, such as ores, have been intensively investigated as candidate oxygen carriers for chemical-looping processes. However, these materials have highly variable compositions, and this strongly influences their chemical-looping performance. Here, using machine learning techniques, we estimate the performance of heterogeneous...
Source: Chemical Engineering Journal - February 5, 2020 Category: Chemistry Source Type: research