Removal of manganese from groundwater in the ripened sand filtration: biological oxidation versus chemical auto-catalytic oxidation
Publication date: Available online 3 October 2019Source: Chemical Engineering JournalAuthor(s): Haiyang Yang, Zhongsen Yan, Xing Du, Langming Bai, Huarong Yu, An Ding, Guibai Li, Heng Liang, Tejraj M. AminabhaviAbstractThis work is a contribution to understand the interaction of biological and chemical auto-catalytic oxidation processes for the removal of manganese (Mn)(0∼1.8 mg/L) using the ripened sand filter. Here, penicillin, sodium chloride (NaCl), autoclave sterilization and sodium hypochlorite (NaClO) were chosen as the four inactivation methods to distinguish biological and chemical oxidation processes on the r...
Source: Chemical Engineering Journal - October 8, 2019 Category: Chemistry Source Type: research

[ASAP] Elucidation of Structure –Activity Correlations in a Nickel Manganese Oxide Oxygen Evolution Reaction Catalyst by Operando Ni L-Edge X-ray Absorption Spectroscopy and 2p3d Resonant Inelastic X-ray Scattering
ACS Applied Materials& InterfacesDOI: 10.1021/acsami.9b06752 (Source: ACS Applied Materials and Interfaces)
Source: ACS Applied Materials and Interfaces - October 8, 2019 Category: Materials Science Authors: Mustafa Al Samarai* †, Anselm W. Hahn†, Abbas Beheshti Askari†, Yi-Tao Cui‡§, Kosuke Yamazoe‡§, Jun Miyawaki‡§, Yoshihisa Harada‡§, Olaf Ru¨diger*†, and Serena DeBeer*† Source Type: research

[ASAP] Incorporation of Bulk Proton Carriers in Cubic Perovskite Manganite Driven by Interplays of Oxygen and Manganese Redox
Chemistry of MaterialsDOI: 10.1021/acs.chemmater.9b02131 (Source: Chemistry of Materials)
Source: Chemistry of Materials - October 8, 2019 Category: Materials Science Authors: Ning Wang †, Satoshi Hinokuma‡, Toshiaki Ina§, Hajime Toriumi†, Misaki Katayama?, Yasuhiro Inada?, Chunyu Zhu?, Hiroki Habazaki?, and Yoshitaka Aoki*? Source Type: research

Synthesis, crystal structure solution and characterization of two organic – inorganic hybrid layered materials based on metal sulfates and 1,4-phenylenediamine
Two organic – inorganic hybrid layered materials, namely poly[( μ -1,4-diaminobenzene- κ 2N:N ′ )[ μ 3-sulfato(VI)- κ 4O:O ′ :O ′ ′ ,O ′ ′ ′ ]manganese], [Mn(SO4)(C6H8N2)]n, 1, and poly[( μ -1,4-diaminobenzene- κ 2N:N ′ )[ μ 3-sulfato(VI)- κ 4O:O ′ :O ′ ′ ,O ′ ′ ′ ]copper], [Cu(SO4)(C6H8N2)]n, 2, have been synthesized using 1,4-phenylenediamine (PPD) as an organic template and component (linker). Both materials form three-dimensional frameworks. The crystal structures were determined using data from...
Source: Acta Crystallographica Section C - October 8, 2019 Category: Chemistry Authors: Gonzalez Guillen, A. Oszajca, M. Luberda-Durna ś , K. Lasocha, W. Tags: powder X-ray diffraction crystal structure non-ambient PXRD hybrid layered materials thermal decomposition studies research papers Source Type: research

Daily consumption of pistachios over 12 weeks improves dietary profile without increasing body weight in healthy women: A randomized controlled intervention.
In conclusion, daily intake of 44 g pistachios improved nutrient intake without affecting body weight or composition in healthy women. The additional calories provided by the pistachios induced satiety and sufficient adjustment of intake to prevent body weight changes. CLINICAL TRIAL REGISTRY NUMBER: NCT03526120 https://clinicaltrials.gov/ct2/show/NCT03526120. PMID: 31604062 [PubMed - as supplied by publisher] (Source: Appetite)
Source: Appetite - October 8, 2019 Category: Nutrition Authors: Fantino M, Bichard C, Mistretta F, Bellisle F Tags: Appetite Source Type: research

Aqueous synthesis of Mn-doped CuInSe2 quantum dots to enhance the performance of quantum dot sensitized solar cells
Dalton Trans., 2019, Accepted Manuscript DOI: 10.1039/C9DT03163D, PaperMulu Alemayehu Abate, Khalilalrahman Dehvari, Jia-Yaw Chang, Keiko Waki Herein, we present a direct aqueous synthesis of manganese (Mn) doped CuInSe2 (Mn-CISe) quantum dots (QDs) under microwave irradiation to improve the photochemical properties of the solar cells. As a... The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Dalton Trans. latest articles)
Source: RSC - Dalton Trans. latest articles - October 7, 2019 Category: Chemistry Authors: Mulu Alemayehu Abate Source Type: research

[ASAP] Enhanced Electrochemical Performance of the Lithium-Manganese-Rich Cathode for Li-Ion Batteries with Na and F CoDoping
ACS Applied Materials& InterfacesDOI: 10.1021/acsami.9b13838 (Source: ACS Applied Materials and Interfaces)
Source: ACS Applied Materials and Interfaces - October 7, 2019 Category: Materials Science Authors: Panawan Vanaphuti †, Jiajun Chen†, Jiayu Cao†, Karly Bigham†, Bin Chen†, Lufeng Yang‡, Hailong Chen‡, and Yan Wang*† Source Type: research

[ASAP] Singly Unified Driving Force Dependence of Outer-Sphere Electron-Transfer Pathways of Nonheme Manganese(IV)-Oxo Complexes in the Absence and Presence of Lewis Acids
Inorganic ChemistryDOI: 10.1021/acs.inorgchem.9b02403 (Source: Inorganic Chemistry)
Source: Inorganic Chemistry - October 7, 2019 Category: Chemistry Authors: Namita Sharma †‡, Yong-Min Lee†‡, Xiao-Xi Li†, Wonwoo Nam*†§, and Shunichi Fukuzumi*†? Source Type: research

[ASAP] A Manganese-Based Coordination Polymer Containing No Solvent as a High Performance Anode in Li-Ion Batteries
Crystal Growth& DesignDOI: 10.1021/acs.cgd.9b00962 (Source: Crystal Growth and Design)
Source: Crystal Growth and Design - October 7, 2019 Category: Chemistry Authors: Guangchi Sun †, Lili Yu†, Yao Hu‡, Yanyong Sha†, Hongren Rong†, Baolong Li#, Hong-Jiang Liu*‡, and Qi Liu*†§ Source Type: research

[ASAP] Electrolyte Effect on the Electrochemical Performance of Mild Aqueous Zinc-Electrolytic Manganese Dioxide Batteries
ACS Applied Materials& InterfacesDOI: 10.1021/acsami.9b09252 (Source: ACS Applied Materials and Interfaces)
Source: ACS Applied Materials and Interfaces - October 7, 2019 Category: Materials Science Authors: Huilin Pan*, Jacob F. Ellis, Xiaolin Li, Zimin Nie, Hee Jung Chang, and David Reed Source Type: research

Fabrication of a flexible binder-free lithium manganese oxide cathode for secondary Li - Ion batteries
Publication date: Available online 5 October 2019Source: Journal of Physics and Chemistry of SolidsAuthor(s): C. Bubulinca, I. Sapurina, N.E. Kazantseva, J. Vilčáková, Q. Cheng, P. SáhaAbstractThe binder-free technology is used to produce flexible self-standing cathodes for secondary Li-ion batteries containing commercial materials: lithium manganese oxide (LMO) and multiwall carbon nanotubes (CNT). The fragmentation of commercial LMO by short time ball-milling with low energy intensities, allows one to reduce the particle size from tens of microns to the micron and submicron level, while maintaining ...
Source: Journal of Physics and Chemistry of Solids - October 7, 2019 Category: Physics Source Type: research

Targeted photoswitchable imaging of intracellular glutathione by a photochromic glycosheet sensor
Abstract The development of photochromic fluorescence sensors with dynamic and multiple-signaling is beneficial to the improvement of biosensing/imaging precision. However, elaborate designs with complicated molecular structures are always required to integrate these functions into one molecule. By taking advantages of both redox-active/high loading features of two-dimensional (2D) manganese dioxide (MnO2) and dynamic fluorescence photoswitching of photochromic sensors, we here design a hybrid photochromic MnO2 glycosheet (Glyco-DTE@MnO2) to achieve the photoswitchable imaging of intracellular glutathione (GSH). The photoc...
Source: Beilstein Journal of Organic Chemistry - October 7, 2019 Category: Chemistry Authors: Beilstein Journal of Organic Chemistry - Syndicated Feeds Tags: intracellular GSH molecular switches photochromic glycosheet photoswitchable imaging 2D MnO2 nanosheets Full Research Paper Source Type: research

Unravelling H+/Zn2+ Synergistic Intercalation in a Novel Phase of Manganese Oxide for High ‐Performance Aqueous Rechargeable Battery
A H+/Zn2+ synergistic intercalation mechanism for manganese oxide nanosheets is first reported and effectively enhances the electrochemical performance of an aqueous Zn battery. AbstractAqueous Zn ‐MnO2 batteries using mild electrolyte show great potential in large ‐scale energy storage (LSES) application, due to high safety and low cost. However, structure collapse of manganese oxides upon cycling caused by the conversion mechanism (e.g., from tunnel to layer structures for α‐, β‐, and γ‐phases) is one of the most urgent issues plaguing its practic al applications. Herein, to avoid the phase con...
Source: Small - October 7, 2019 Category: Nanotechnology Authors: Qinghe Zhao, Xin Chen, Ziqi Wang, Luyi Yang, Runzhi Qin, Jinlong Yang, Yongli Song, Shouxiang Ding, Mouyi Weng, Weiyuan Huang, Jiajie Liu, Wenguang Zhao, Guoyu Qian, Kai Yang, Yanhui Cui, Haibiao Chen, Feng Pan Tags: Communication Source Type: research

Toenails as biomarker of exposure to essential trace metals: A review.
lán M, Pérez-Gómez B Abstract Health problems associated with essential trace metals can result from both inadequate (i.e., low intake) and excessive exposures (i.e., from environmental and/or occupational source). Thus, measuring the exposure level is a real challenge for epidemiologists. Among non-invasive biomarkers that intend to measure long-term exposure to essential trace metals, the toenail is probably the biological matrix with the greatest potential. This systematic review collects the current evidence regarding the validity of toenail clippings as exposure biomarker for trace metals...
Source: Environmental Research - October 7, 2019 Category: Environmental Health Authors: Gutiérrez-González E, García-Esquinas E, de Larrea-Baz NF, Salcedo-Bellido I, Navas-Acien A, Lope V, Gómez-Ariza JL, Pastor R, Pollán M, Pérez-Gómez B Tags: Environ Res Source Type: research

Unravelling H+/Zn2+ Synergistic Intercalation in a Novel Phase of Manganese Oxide for High ‐Performance Aqueous Rechargeable Battery
A H+/Zn2+ synergistic intercalation mechanism for manganese oxide nanosheets is first reported and effectively enhances the electrochemical performance of an aqueous Zn battery. AbstractAqueous Zn ‐MnO2 batteries using mild electrolyte show great potential in large ‐scale energy storage (LSES) application, due to high safety and low cost. However, structure collapse of manganese oxides upon cycling caused by the conversion mechanism (e.g., from tunnel to layer structures for α‐, β‐, and γ‐phases) is one of the most urgent issues plaguing its practic al applications. Herein, to avoid the phase con...
Source: Small - October 7, 2019 Category: Nanotechnology Authors: Qinghe Zhao, Xin Chen, Ziqi Wang, Luyi Yang, Runzhi Qin, Jinlong Yang, Yongli Song, Shouxiang Ding, Mouyi Weng, Weiyuan Huang, Jiajie Liu, Wenguang Zhao, Guoyu Qian, Kai Yang, Yanhui Cui, Haibiao Chen, Feng Pan Tags: Communication Source Type: research

High Specificity Of A Rare Terrestrial Orchid Toward A Rare Fungus Within The North American Tallgrass Prairie
Publication date: Available online 4 October 2019Source: Fungal BiologyAuthor(s): Jaspreet Kaur, Lela Andrews, Jyotsna SharmaAbstractThe Orchidaceae are globally distributed and represent a diverse lineage of obligate mycotrophic plants. Given their dependence upon specific fungi for seed germination or plant development, composition of soil fungal communities is expected to influence the distribution and persistence of orchid species though simultaneous characterization of orchid mycorrhizal fungal (OMF) communities in roots and in soil is rarely reported. To explain the OMF co-distributions in orchid roots, orchid occupi...
Source: Fungal Biology - October 5, 2019 Category: Biology Source Type: research

Novel organic-inorganic hybrid polyphosphazene modified manganese hypophosphite shuttles towards the fire retardance and anti-dripping of PET
Publication date: November 2019Source: European Polymer Journal, Volume 120Author(s): Teng Li, Shuai Li, Tongjun Ma, Yi Zhong, Linping Zhang, Hong Xu, Bijia Wang, Xueling Feng, Xiaofeng Sui, Zhize Chen, Zhiping MaoAbstractA novel organic-inorganic hybrid polyphosphazene modified manganese hypophosphite (PZS-MnHP) shuttles was facilely fabricated and applied in enhancing the flame retardance and anti-dripping behavior of PET. The PET containing 5 wt% PZS-MnHP shuttles (PET/FR5.0) possessed a LOI value of 25.3% and corresponding melt-dripping was greatly restricted with few droplets. Incorporating 5 wt% PZS-MnHP shuttles...
Source: European Polymer Journal - October 5, 2019 Category: Chemistry Source Type: research

Manganese doping mechanism in CsPbI2Br photovoltaic material: A first-principles study
Phys. Chem. Chem. Phys., 2019, Accepted Manuscript DOI: 10.1039/C9CP03870A, PaperJunpeng An, Haiyan Jiang, Ying Tian, Hongtao Xue, Fuling Tang As a light absorbing material of perovskite solar cells, Mn-doped CsPbI2Br has a better phase stability than the undoped one. In order to deeply understand the doping mechanism of Mn,... 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 - October 5, 2019 Category: Chemistry Authors: Junpeng An Source Type: research

Occupational metals exposure and cognitive performance among foundry workers using tau protein as a biomarker.
Abstract INTRODUCTION: Human exposure to heavy metals is a potential risk for developing cognitive impairment. Aluminum (Al) foundry is one of industries that involve occupational exposure to different metals. AIM OF THE WORK: to evaluate the cognitive performance of Aluminum foundry workers in relation to different metals exposure. MATERIALS AND METHODS: a cross sectional study conducted on 75 Al foundry workers and 75 non-occupationally exposed subjects as controls. Personal interview with specially designed questionnaire, Assessment of cognitive functions done using Montreal cognitive assessment (MocA...
Source: Neurotoxicology - October 5, 2019 Category: Neurology Authors: Mohammed RS, Ibrahim W, Sabry D, El-Jaafary SI Tags: Neurotoxicology Source Type: research

DJ-1/PARK7 inhibits high glucose-induced oxidative stress to prevent retinal pericyte apoptosis via the PI3K/AKT/mTOR signaling pathway.
Abstract Reactive oxygen species (ROS) act through multiple pathways to induce apoptosis of retinal capillary pericytes, which is an early marker for diabetic retinopathy and the primary cause of diabetic retinopathy disease progression. However, the specific molecular mechanisms behind ROS-induced retinal capillary pericyte loss in diabetic retinopathy remains elusive. Here, we investigate the molecular regulation and effects of DJ-1/PARK7 on oxidative stress and injury of rat retinal pericytes (RRPs). In our study, RRPs were isolated from rat retinal tissue and cultured with different concentration of glucose in...
Source: Experimental Eye Research - October 5, 2019 Category: Opthalmology Authors: Zeng J, Zhao H, Chen B Tags: Exp Eye Res Source Type: research

Effect of gomisin A on osteoblast differentiation in high glucose-mediated oxidative stress
ConclusionsThe findings demonstrated the antioxidative effects of gomisin A, and its role in mitochondrial biogenesis and osteoblast differentiation. It potentially regulated osteoblast differentiation under high glucose-induced oxidative stress via upregulation of HO-1 and maintenance of mitochondrial homeostasis. Thus, gomisin A may represent a potential therapeutic agent for prevention of bone fragility fractures and implant failure triggered by diabetes.GRAPHICAL ABSTARCT (Source: Phytomedicine)
Source: Phytomedicine - October 4, 2019 Category: Drugs & Pharmacology Source Type: research

A cyanide-bridged FeIII – MnII heterobimetallic one-dimensional coordination polymer: synthesis, crystal structure, experimental and theoretical magnetism investigation
A new cyanide-bridged FeIII – MnII heterobimetallic coordination polymer (CP), namely catena-poly[[[N,N ′ -(1,2-phenylene)bis(pyridine-2-carboxamidato)- κ 4N,N ′ ,N ′ ′ ,N ′ ′ ′ ]iron(III)]- μ -cyanido- κ 2C:N-[bis(4,4 ′ -bipyridine- κ N)bis(methanol- κ O)manganese(II)]- μ -cyanido- κ 2N:C], {[FeMn(C18H12N4O2)(CN)2(C10H8N2)2(CH3OH)2]ClO4}n, (1), was prepared by the self-assembly of the trans-dicyanidoiron(III)-containing building block [Fe(bpb)(CN)2] − [bpb2 − = N,N ′ -(1,2-phenylene)bis(pyridine-2-carboxamidate)], [...
Source: Acta Crystallographica Section C - October 4, 2019 Category: Chemistry Authors: Lan, W. Zhou, Z. Li, J. Dou, Y. Hao, X. Yang, L. Liu, H. Li, D. Liu, Q. Zhang, D. Tags: one-dimensional coordination polymer cyanide bridge crystal structure magnetic properties iron(III) manganese(II) heterobimetallic research papers Source Type: research

Sensors, Vol. 19, Pages 4300: China ’s First Demonstration of Cobalt-rich Manganese Crust Thickness Measurement in the Western Pacific with a Parametric Acoustic Probe
Sensors, Vol. 19, Pages 4300: China’s First Demonstration of Cobalt-rich Manganese Crust Thickness Measurement in the Western Pacific with a Parametric Acoustic Probe Sensors doi: 10.3390/s19194300 Authors: Hong Feng Huang Wang Xia Cobalt-rich manganese crusts (CRCs) are important as a potential mineral source that could occur throughout the Pacific on seamounts, ridges, and plateaus. We built a prototype parametric acoustic probe to complete the task of in-situ thickness measurements to estimate the volumetric distribution of deep-sea mineral. The prototype is designed with dual-channels for rec...
Source: Sensors - October 4, 2019 Category: Biotechnology Authors: Hong Feng Huang Wang Xia Tags: Article Source Type: research

An MRI study of solute transport in the intervertebral disc
ConclusionThe MRI technique provides high-quality quantitative data which correspond well to theoretical predictions, allowing values for partition coefficient and time constant to be readily determined. These measurements provide information to underpin similar studies in vivo and may be used as a model for the transport of nutrients and pharmaceutical agents in the disc. (Source: Magnetic Resonance Materials in Physics, Biology and Medicine)
Source: Magnetic Resonance Materials in Physics, Biology and Medicine - October 4, 2019 Category: Materials Science Source Type: research

An MRI study of solute transport in the intervertebral disc.
CONCLUSION: The MRI technique provides high-quality quantitative data which correspond well to theoretical predictions, allowing values for partition coefficient and time constant to be readily determined. These measurements provide information to underpin similar studies in vivo and may be used as a model for the transport of nutrients and pharmaceutical agents in the disc. PMID: 31586265 [PubMed - as supplied by publisher] (Source: Magma)
Source: Magma - October 4, 2019 Category: Radiology Authors: Palfrey RM, Summers IR, Winlove CP Tags: MAGMA Source Type: research

The role of nanoscale strain-induced defects in the sharp increase of low-temperature toughness in low-carbon and low-alloy steels
Publication date: Available online 2 October 2019Source: Materials Science and Engineering: AAuthor(s): V.E. Panin, L.S. Derevyagina, S.V. Panin, A.R. Shugurov, A.I. GordienkoAbstractIn the paper it is studied how the modes of thermal treatment of low-carbon steels alloyed with manganese (09G2S) and with manganese, vanadium, and niobium (10G2FBYu) affect their hierarchical structure and toughness in the low-temperature region from +20 down to −70 °C. A fine-grained structure, quasi-homogeneous lattice curvature, and nanoscale mesoscopic structural states arising due to radial-shear rolling at 850 °C...
Source: Materials Science and Engineering: A - October 3, 2019 Category: Materials Science Source Type: research

Influence of CO oxidation conditions on the Mn-Zr oxide catalyst structure: in situ XRD and MS study
Publication date: Available online 3 October 2019Source: Materials LettersAuthor(s): O.A. Bulavchenko, Z.S. Vinokurov, T.N. Afonasenko, S.V. TsybulyaAbstractMn-Zr oxide catalyst was studied by X-ray powder diffraction and mass-spectrometry under CO oxidation reaction conditions with different CO/O2 ratio. Mn-Zr catalyst consists of manganese oxides and MnyZr1–yO2–x solid solution and was found to be stable in the environment with stoichiometric ratio of CO/O2=2:1 and with excess of oxygen. When the catalyst is treated in the reducing environment (pure CO and CO/O2=4:1) the transformation of manganese oxides to ...
Source: Materials Letters - October 3, 2019 Category: Materials Science Source Type: research

Ratiometric fluorescence and colorimetry dual-mode assay based on manganese dioxide nanosheets for visual detection of alkaline phosphatase activity
Publication date: 1 January 2020Source: Sensors and Actuators B: Chemical, Volume 302Author(s): Qian Yang, Xiaoyan Wang, Hailong Peng, Maryam Arabi, Jinhua Li, Hua Xiong, Jaebum Choo, Lingxin ChenAbstractAlkaline phosphatase (ALP) activity plays a crucial role in foods and varies greatly in livestock and dairy products; it is quite difficult to compatibly monitor the different activities in various complicated foods. Herein, we proposed a ratiometric fluorescence and colorimetry dual-mode assay based on manganese dioxide (MnO2) nanosheets for the visualization of ALP activity in livestock serum and pasteurized milk samples...
Source: Sensors and Actuators B: Chemical - October 3, 2019 Category: Chemistry Source Type: research

Hydrothermal synthesis of neodymium oxide nanoparticles and its nanocomposites with manganese oxide as electrode materials for supercapacitor application
Publication date: 30 January 2020Source: Journal of Alloys and Compounds, Volume 815Author(s): Khadija Tul Kubra, Rehana Sharif, Bebi Patil, Atif Javaid, Shamaila Shahzadi, Ayesha Salman, Sofia Siddique, Ghulam AliAbstractNeodymium and manganese oxide-based nanocomposites (Nd2O3/Mn3O4-0, Nd2O3/Mn3O4-1, and Nd2O3/Mn3O4-2) along with pure nanoparticles of Nd2O3 have been synthesized by the hydrothermal process. X-ray diffraction analysis presents that nanocomposites exhibit the mutual effect of hexagonal and tetragonal crystal structures of Nd2O3 and Mn3O4 respectively. Field emission scanning electron microscopic results di...
Source: Journal of Alloys and Compounds - October 3, 2019 Category: Chemistry Source Type: research

[ASAP] Magnetic Manganese Oxide Sweetgum-Ball Nanospheres with Large Mesopores Regulate Tumor Microenvironments for Enhanced Tumor Nanotheranostics
ACS Applied Materials& InterfacesDOI: 10.1021/acsami.9b11843 (Source: ACS Applied Materials and Interfaces)
Source: ACS Applied Materials and Interfaces - October 2, 2019 Category: Materials Science Authors: Yushuo Feng †, Dandan Ding†, Wenjing Sun†, Yuwei Qiu†, Li Luo†, Tianhang Shi†, Shanshan Meng†, Xiaoyuan Chen*‡, and Hongmin Chen*† Source Type: research

[ASAP] Mechanisms of Manganese Oxide Electrocatalysts Degradation during Oxygen Reduction and Oxygen Evolution Reactions
The Journal of Physical Chemistry CDOI: 10.1021/acs.jpcc.9b07751 (Source: The Journal of Physical Chemistry C)
Source: The Journal of Physical Chemistry C - October 2, 2019 Category: Chemistry Authors: Florian D. Speck* †‡, Pietro G. Santori§, Fre´de´ric Jaouen*§, and Serhiy Cherevko*† Source Type: research

The Crystal Structure of the Manganese Superoxide Dismutase from Geobacillus stearothermophilus: Parker and Blake (1988) Revisited
Julian J. Adams, Craig J. Morton, Michael W. Parker Superoxide dismutase (SOD) is an almost ubiquitous metalloenzyme that catalyses the disproportionation of superoxide (O2•−) to molecular oxygen (O2) and hydrogen peroxide (H2O2). The crystal structure of the manganese SOD from Geobacillus stearothermophilus was determined many years ago but the final structure, completed with modern processing and analysis tools, has only just been made available. (Source: Australian Journal of Chemistry)
Source: Australian Journal of Chemistry - October 2, 2019 Category: Chemistry Authors: Julian J. Adams Craig J. Morton Michael W. Parker Source Type: research

Catalytic Epoxidation of Olefins in Liquid Phase over Manganese Based Magnetic Nanoparticles
Dalton Trans., 2019, Accepted Manuscript DOI: 10.1039/C9DT03456K, PerspectiveWenjuan Yan, Jinyao Wang, Jie Ding, Puhua Sun, Shuxia Zhang, Jian Shen, Xin Jin Epoxidation of olefins stands out a crucial class of reactions and is of great interest in academic research and industry due to production of various important fine chemicals and intermediates.... The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Dalton Trans. latest articles)
Source: RSC - Dalton Trans. latest articles - October 1, 2019 Category: Chemistry Authors: Wenjuan Yan Source Type: research

[ASAP] Enhanced Electrochemical Performance of Sodium Manganese Ferrocyanide by Na < sub > 3 < /sub > (VOPO < sub > 4 < /sub > ) < sub > 2 < /sub > F Coating for Sodium-Ion Batteries
ACS Applied Materials& InterfacesDOI: 10.1021/acsami.9b12041 (Source: ACS Applied Materials and Interfaces)
Source: ACS Applied Materials and Interfaces - October 1, 2019 Category: Materials Science Authors: Fangwei Peng †, Lei Yu‡§, Siqi Yuan†, Xiao-Zhen Liao*†, Jianguo Wen‡, Guoqiang Tan?, Fan Feng†, and Zi-Feng Ma† Source Type: research

Albumin Coating Prevents Cardiac Effect of the Magnetic Nanoparticles
We have showed that surface layer can determine cardiac effects of the magnetic nanoparticles (MNPs). Considering the high binding capacity of albumin and low side-effects, the aim of this study was to evaluate the influence of albumin coating on the cardiovascular effects of two manganese ferrite-based MNPs: citrate-coated and bare MNPs. Isolated rat hearts were perfused with citrate-coated magnetic nanoparticles (CiMNPs), citrate albumin-coated magnetic nanoparticles (CiAlbMNPs), bare magnetic nanoparticles (BaMNPs), and albumin-coated magnetic nanoparticles (AlbMNPs). CiMNPs induce a transient decrease in the left ventr...
Source: IEE Transactions on NanoBioscience - October 1, 2019 Category: Nanotechnology Source Type: research

Experimental and theoretical insights into the synthesis of α-aminoalkyl naphthol derivatives catalyzed by manganese complex immobilized on multi-wall carbon nanotubes
Dalton Trans., 2019, Accepted Manuscript DOI: 10.1039/C9DT03604K, PaperJamshid Rakhtshah, Fereshteh Yaghoobi The full details of the synthesis of α-aminoalkyl naphthol derivatives promoted by manganese complexes immobilized on multi-wall carbon nanotubes (CNTs@Mn-bpy) are described, with the particular focus on the theoretical mechanistic... The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Dalton Trans. latest articles)
Source: RSC - Dalton Trans. latest articles - September 30, 2019 Category: Chemistry Authors: Jamshid Rakhtshah Source Type: research

Role of Astrocytes in Manganese Neurotoxicity Revisited.
Abstract Manganese (Mn) overexposure is a public health concern due to its widespread industrial usage and the risk for environmental contamination. The clinical symptoms of Mn neurotoxicity, or manganism, share several pathological features of Parkinson's disease (PD). Biologically, Mn is an essential trace element, and Mn in the brain is preferentially localized in astrocytes. This review summarizes the role of astrocytes in Mn-induced neurotoxicity, specifically on the role of neurotransmitter recycling, neuroinflammation, and genetics. Mn overexposure can dysregulate astrocytic cycling of glutamine (Gln) and g...
Source: Neurochemical Research - September 30, 2019 Category: Neuroscience Authors: Ke T, Sidoryk-Wegrzynowicz M, Pajarillo E, Rizor A, Soares FAA, Lee E, Aschner M Tags: Neurochem Res Source Type: research

Socio-demographic contributors to health and safety of mine workers in South Africa.
CONCLUSION: Socio-demographic factors should be taken into consideration when developing workplace health and safety programmes. PMID: 31561403 [PubMed - in process] (Source: Work)
Source: Work - September 29, 2019 Category: Occupational Health Authors: Pelders J, Nelson G Tags: Work Source Type: research

Systematic study on separation of Mn and Fe from ferruginous manganese ores by carbothermic reduction roasting process: Phase transformation and morphologies
In this study, the effects of operating variables on the recovery and grade of Fe and Mn are initially investigated during the carbothermic roasting reduction process followed by magnetic separation. Then, the phase transformation and morphologies of spinel (FeyMn1−y)Al2O4, fayalite FeyMn2−ySiO4 and (FeO)x(MnO)1−x are investigated by SEM-EDS, XRD, TG/DTG and thermodynamic analyses. Finally, the stepwise reduction and interfacial reaction of three types of phases are investigated at 700–1100 °C for 10–120 min to clarify the reason for the poor separation of Mn and Fe from Fe–Mn or...
Source: Journal of Materials Research and Technology - September 29, 2019 Category: Materials Science Source Type: research

A silver-manganese dual cocatalyst for selective reduction of carbon dioxide into carbon monoxide over a potassium hexatitanate photocatalyst with water
Chem. Commun., 2019, Accepted Manuscript DOI: 10.1039/C9CC06038C, CommunicationXING · ZHU, Akira Yamamoto, Shota Imai, Atsuhiro Tanaka, Hiroshi Kominami, Hisao Yoshida A Ag-Mn dual cocatalyst deposited on a K2Ti6O13 photocatalyst significantly enhances photocatalytic CO2 reduction into CO by water with extremely high selectivity such as 98% by using H2O as an... The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Chem. Commun. latest articles)
Source: RSC - Chem. Commun. latest articles - September 28, 2019 Category: Chemistry Authors: XING · ZHU Source Type: research

Effect of prior austenite grain size on the evolution of microstructure and mechanical properties of an intercritically annealed medium manganese steel
Publication date: Available online 27 September 2019Source: Materials Science and Engineering: AAuthor(s): A.K. Chandan, G.K. Bansal, J. Kundu, J. Chakraborty, S. Ghosh ChowdhuryAbstractThis paper presents the influence of prior austenite grain (PAG) size on the evolution of microstructure and mechanical properties in an intercritically annealed medium manganese steel (Fe- 8.1 Mn - 0.3 C- 1.1 Si- 1.5 Al). The hot forged alloy was austenitized at two different temperature-time combination to achieve the PAG size of ∼20 μm (sample 1) and ∼40 μm (sample 2). Both the samples retained a small amount of a...
Source: Materials Science and Engineering: A - September 28, 2019 Category: Materials Science Source Type: research

High-voltage LiNi0.5Mn1.5O4 thin film cathodes stabilized by LiPON solid electrolyte coating to enhance cyclic stability and rate capability
Publication date: 30 January 2020Source: Journal of Alloys and Compounds, Volume 815Author(s): Shasha Lv, Mingyang Li, Xinyi Luo, Jianping Cheng, Zhengcao LiAbstractConstruction of a stable artificial interlayer is a promising strategy to enhance cycling performance of high-voltage cathodes. Here, amorphous lithium phosphorus oxynitride (LiPON) thin film with a thickness of ∼15 nm was coated onto LiNi0.5Mn1.5O4 (LNMO) thin film by magnetron sputtering. Detailed microstructure, electrochemical property, and electrochemical impedance spectroscopy (EIS) were undertaken to characterize and understand the role of LiPON at...
Source: Journal of Alloys and Compounds - September 27, 2019 Category: Chemistry Source Type: research

Enhancement of local piezoresponse in samarium and manganese co-doped bismuth ferrite ceramics
Publication date: 30 January 2020Source: Journal of Alloys and Compounds, Volume 815Author(s): Chi-Shun Tu, Pin-Yi Chen, Cheng-Sao Chen, Wei Sea Chang, R.R. Chien, Kuei-Chih Feng, Yi-Shin Jou, V. Hugo SchmidtAbstractField-induced polarization switching and electromechanical mechanisms in lead-free multiferroic BiFeO3 materials are essential for applications in nanoscale logic and magnetoelectric-controlled devices. This work highlights enhanced ferroelectric polarization switching and electromechanical strain behaviors in (Sm, Mn) co-doped (Bi0.95Sm0.05)(Fe1-xMnx)O3 ceramics with increasing Mn substitution. The Mn L-edge a...
Source: Journal of Alloys and Compounds - September 27, 2019 Category: Chemistry Source Type: research

Hyperfine Tensors for a model system for the oxygen evolving complex of photosystem II: calculation of the anisotropy shift that occurs beyond the strong exchange limit
Phys. Chem. Chem. Phys., 2019, Accepted Manuscript DOI: 10.1039/C9CP03629F, PaperChristine Mehlich, Christoph van Wullen Broken-symmetry density functional calculations have been used to calculate effective55Mn hyperfine (A) tensors for a mixed-valence tetranuclear manganese complex, a model system for the S2 state of the oxygen-evolving... 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 - September 27, 2019 Category: Chemistry Authors: Christine Mehlich Source Type: research

[ASAP] Circularly Polarized Luminescence from Achiral Single Crystals of Hybrid Manganese Halides
Journal of the American Chemical SocietyDOI: 10.1021/jacs.9b08780 (Source: Journal of the American Chemical Society)
Source: Journal of the American Chemical Society - September 27, 2019 Category: Chemistry Authors: Jian Zhao †?, Tongjin Zhang‡?, Xi-Yan Dong†§, Meng-En Sun†, Chong Zhang†, Xinlei Li†, Yong Sheng Zhao*‡, and Shuang-Quan Zang*† Source Type: research

Elemental composition of total dry particulate matter deposited in the selected industrial areas within Lagos state
AbstractThe total particulate matter (PM) deposited within 17 selected industrial areas in Lagos state during the dry season (December 2015 to January 2016) was studied. Deposition gauges measuring 0.2 meters (m) in diameter by 0.15  m in depth were placed at the sampling locations for a period of one month to collect the total deposited PM. The PM was then characterized using energy‐dispersive X‐ray florescence (EDXRF). The sources of the heavy metals were evaluated using enrichment factor (EF) analysis. Factor analysis ( FA) was then used to determine the correlations between the identified heavy metals. Twenty...
Source: Environmental Quality Management - September 27, 2019 Category: Environmental Health Authors: Sunday Adekunle Adebanjo, Lukuman Adekilekun Jimoda, Abass O. Alade, Adejoke Oluseyi Alamu Tags: RESEARCH ARTICLE Source Type: research

Hybrid nanomanufacturing of mixed-dimensional manganese oxide/graphene aerogel macroporous hierarchy for ultralight efficient supercapacitor electrodes in self-powered ubiquitous nanosystems
Publication date: December 2019Source: Nano Energy, Volume 66Author(s): Chenxiang Ma, Ruoxing Wang, Halil Tetik, Shengjie Gao, Min Wu, Zhiyuan Tang, Dong Lin, Dong Ding, Wenzhuo WuAbstractThe economic production of wearable energy storage devices exhibiting mechanically-compliable form factors and reliable performance enable exciting opportunities in emerging technologies of consumer electronics, human-machine interface, and the Internet of Things. Here we report a hybrid scheme for designing and nanomanufacturing ultralight, high-performance supercapacitor electrodes through the hydrothermal growth of two-dimensional MnO2...
Source: Nano Energy - September 26, 2019 Category: Nanotechnology Source Type: research

Comparison of microwave and conventionally sintered manganese and niobium doped lanthanum germanate based apatites by micro Raman Spectroscopy
Publication date: 15 January 2020Source: Materials Chemistry and Physics, Volume 240Author(s): Chetan Sharma, Kanchan L. Singh, Anirudh P. Singh, Payal Sharma, Sonia Mago, Vandana Naithani, Ravinder Kumar ChadhaAbstractIn this paper, the effect of microwave and conventional sintering on doping behaviour of Mn2+ and Nb5+ in lanthanum germanate based apatite have been compared. The precursor of apatite has been prepared by mixed oxide method and conventionally calcined at 1100 °C for 6 h. The resulting powders have been sintered by microwave energy at 1400 °C for 30 min and by conventional heating 1400 °...
Source: Materials Chemistry and Physics - September 26, 2019 Category: Materials Science Source Type: research

Neuroprotective effects of docosahexaenoic acid against sub-acute manganese intoxication induced dopaminergic and motor disorders in mice
Publication date: Available online 25 September 2019Source: Journal of Chemical NeuroanatomyAuthor(s): Radouane El Fari, Abdellatif Abbaoui, Anas Bourziq, Mohamed Zroudi, Ahmed Draoui, Abdelaati El Khiat, Mounir Belkouch, Abdeljalil Elgot, Halima GamraniAbstractManganese (Mn) is an essential metallic trace element involved in several vital biological functions. Conversely, exposure to excessive levels of Mn induces manganism, causing neurodegeneration and symptoms similar to those seen in Parkinson's disease (PD). Docosahexaenoic acid (DHA) is a long-chain polyunsaturated fatty acid exhibiting neuroprotective properties ag...
Source: Journal of Chemical Neuroanatomy - September 26, 2019 Category: Neuroscience Source Type: research

Spectral, thermal, DFT calculations, anticancer and antimicrobial studies for bivalent manganese complexes of pyrano [2,3-d]pyrimidine derivatives
Publication date: 5 January 2020Source: Journal of Molecular Structure, Volume 1199Author(s): Walaa H. El-Shwiniy, Wesam S. Shehab, Wael A. ZordokAbstractThree novel metal complexes of 4-Amino-6-oxo-5-thiophen-2-yl-8-thioxo-3,5,6,7,8,9-hexahydro-4Hpyrano[2,3-d; 6,5d']dipyrimidin-2-yl)-acetonitrile(L1),5-Thiophen-2-yl-2-thioxo-2,3,5,7-tetrahydro-1H-pyrano[2,3-d; 6,5-d']dipyrimidine-4,6-dione (L2) and 6-Amino-5-thiophen-2-yl-2-thioxo-1,2,3,5-tetrahydro-pyrano[2,3-d; 6,5-d']dipyrimidin-4-one (L3) with Mn(II) were synthesized and characterized with physicochemical and spectroscopic techniques. The electron density of HOMOs is ...
Source: Journal of Molecular Structure - September 26, 2019 Category: Molecular Biology Source Type: research