Influence of slope aspect on the macro- and micronutrients in Artemisia sacrorum on the Loess Plateau in China.
Abstract Slope aspect is an important topographic factor for a micro-ecosystem environment that may affect macro- and micronutrients in plants and soil. The south-, northwest-, and north-facing slopes were selected to investigate the influence of slope aspect on the concentrations, storage, and allocation of macro- and micronutrients in Artemisia sacrorum on the Loess Plateau in China. The concentrations of available manganese (Mn) in both rhizosphere and non-rhizosphere soils reached their maximum on the north-facing slope. The concentrations of available iron (Fe) in rhizosphere soil and available copper (Cu) in...
Source: Environmental Science and Pollution Research International - April 1, 2020 Category: Environmental Health Authors: Ai Z, Zhang J, Liu H, Liang C, Xue S, Liu G Tags: Environ Sci Pollut Res Int Source Type: research

[ASAP] Chemoselective Hydroboration of Propargylic Alcohols and Amines Using a Manganese(II) Catalyst
Organic LettersDOI: 10.1021/acs.orglett.0c00941 (Source: Organic Letters)
Source: Organic Letters - March 31, 2020 Category: Chemistry Authors: Aleksandra Brzozowska †, Viktoriia Zubar†, Ruth-Christine Ganardi†, and Magnus Rueping*†‡ Source Type: research

The Versatility of Opportunistic Infections Caused by Gemella Isolates Is Supported by the Carriage of Virulence Factors From Multiple Origins
The molecular basis of the pathogenesis of the opportunistic invasive infections caused by isolates of the Gemella genus remains largely unknown. Moreover, inconsistencies in the current species assignation were detected after genome-level comparison of 16 public Gemella isolates. A literature search detected that, between the two most pathogenic species, Gemella morbillorum causes about twice the number of cases compared to Gemella haemolysans. These two species shared their mean diseases – sepsis and endocarditis – but differed in causing other syndromes. A number of well-known virulence factors were harbored...
Source: Frontiers in Microbiology - March 31, 2020 Category: Microbiology Source Type: research

Accumulation pattern of inorganic elements in scaly tooth mushroom (Sarcodon imbricatus) from Northern Poland.
In this study, elements such as silver (Ag), aluminium (Pb),  barium (Ba), calcium (Ca), cadmium (Cd), cobalt (Co,) chromium (Cr), copper (Cu), iron (Fe),  mercury (Hg), potassium (K), magnesium (Mg), manganese (Mn), sodium (Na), nickel (Ni), phosphorous (P), lead (Pb), rubidium (Rb), strontium (Sr) and zinc (Zn) were measured in caps and stems of fruiting bodies of   S. imbricatus collected from the Wdzydze forests in Central and the Augustowska Primeval forest in Eastern Poland. Results revealed that a wide variation in concentrations of various metals in caps and stems samples collected from the two fores...
Source: Chemistry and Biodiversity - March 31, 2020 Category: Biochemistry Authors: Saba M, Falandysz J, Loganathan BG Tags: Chem Biodivers Source Type: research

Sustainable and Selective Alkylation of Deactivated Secondary Alcohols to Ketones by Non-bifunctional Pincer N-heterocyclic Carbene Manganese.
Abstract A sustainable and green route to access diverse functionalized ketones via dehydrogenative-dehydrative cross-coupling of primary and secondary alcohols is demonstrated. This borrowing hydrogen approach employing a pincer N -heterocyclic carbene manganese complex displays high activity and selectivity. A variety of primary and secondary alcohols are well tolerant and result in satisfactory isolated yields. Mechanistic studies suggest that this reaction proceeds via a direct outer-sphere mechanism and the dehydrogenation of the secondary alcohol substrates plays a vital role in the rate-limiting step. ...
Source: ChemSusChem - March 31, 2020 Category: Chemistry Authors: Lan XB, Ye Z, Liu J, Huang M, Shao Y, Cai X, Liu Y, Ke Z Tags: ChemSusChem Source Type: research

Essential trace elements in placental tissue and risk for fetal neural tube defects.
This study examined the associations between concentrations of cobalt (Co), iron (Fe), manganese (Mn), molybdenum (Mo), selenium (Se), and zinc (Zn) in placental tissue and risks for NTDs with a case-control design consisting of 408 fetuses or newborns with neural tube defects (NTDs) and 593 non-malformed fetuses or newborns. The concentrations of Zn and Fe were determined by inductively coupled plasma-emission spectrometer and the other four elements by inductively coupled plasma-mass spectrometer. Element concentrations were presented in ng/g or µg/g dry weight of placental tissue. The associations between the leve...
Source: Environment International - March 31, 2020 Category: Environmental Health Authors: Yin S, Wang C, Wei J, Wang D, Jin L, Liu J, Wang L, Li Z, Ren A, Yin C Tags: Environ Int Source Type: research

The potential of Paulownia fortunei seedlings for the phytoremediation of manganese slag amended with spent mushroom compost.
Abstract The use of phytoremediation was an efficient strategy for the restoration of mine slag and the addition of modifier was favorable for improving the phytoremediation efficiency. Herein, spent mushroom compost (SMC) was added in manganese (Mn) slag to reveal the phytoremediation potential of Paulownia fortunei seedlings. The transportation, subcellular distribution and chemical forms of Mn in P. fortunei, the diurnal variation of photosynthesis and antioxidant enzyme activities in P. fortunei leaves were measured to reveal the effect of SMC (mass ratios of 10%, M+) on the phytoremediation of Mn slag. Result...
Source: Ecotoxicology and Environmental Safety - March 31, 2020 Category: Environmental Health Authors: Zhang M, Chen Y, Du L, Wu Y, Liu Z, Han L Tags: Ecotoxicol Environ Saf Source Type: research

Manganese oxide functionalized silk fibers for enzyme mimic application
Publication date: June 2020Source: Reactive and Functional Polymers, Volume 151Author(s): Manish Singh, Estera S. Dey, Cedric Dicko (Source: Reactive and Functional Polymers)
Source: Reactive and Functional Polymers - March 30, 2020 Category: Chemistry Source Type: research

Apoptotic Markers Are Increased in Epilepsy Patients: A Relation with Manganese Superoxide Dismutase Ala16Val Polymorphism and Seizure Type through IL-1 β and IL-6 Pathways.
Apoptotic Markers Are Increased in Epilepsy Patients: A Relation with Manganese Superoxide Dismutase Ala16Val Polymorphism and Seizure Type through IL-1β and IL-6 Pathways. Biomed Res Int. 2020;2020:6250429 Authors: Kegler A, Caprara ALF, Pascotini ET, Arend J, Gabbi P, Duarte MMMF, Furian AF, Oliveira MS, Royes LFF, Fighera MR Abstract The MnSOD Ala16Val single nucleotide polymorphism (SNP) has been associated with different diseases. However, there are scarcely studies relating this SNP in epilepsy, a neurologic disease that involves some interacting pathways, such as apoptotic and inflammatory...
Source: Biomed Res - March 30, 2020 Category: Research Authors: Kegler A, Caprara ALF, Pascotini ET, Arend J, Gabbi P, Duarte MMMF, Furian AF, Oliveira MS, Royes LFF, Fighera MR Tags: Biomed Res Int Source Type: research

Investigation of plant species and their heavy metal accumulation in manganese mine tailings in Pingle Mn mine, China.
In this study, soil heavy metal concentrations, plant composition and biodiversity, heavy metal accumulation, and their relationships were studied in the tailings of the Pingle Mn mine (abandoned for over 15 years) in South China. The total heavy metal concentrations ranged from 440 to 15,590 mg kg-1 for Mn, 5.01 to 20.7 mg kg-1 for Cd, 101 to 319 mg kg-1 for Pb, 546 to 1693 mg kg-1 for Zn, and 116 to 180 mg kg-1 for Cu. According to soil contamination assessment by single contamination indexes and the Nemerow multifactor index, the tailing soil had a heavy pollution l...
Source: Environmental Science and Pollution Research International - March 30, 2020 Category: Environmental Health Authors: Liu K, Zhang H, Liu Y, Li Y, Yu F Tags: Environ Sci Pollut Res Int Source Type: research

Manganese Dioxide-Filled Hierarchical Porous Nanofiber Membrane for Indoor Air Cleaning at Room Temperature
Publication date: Available online 27 March 2020Source: Journal of Membrane ScienceAuthor(s): Min Hu, Linghui Yin, Huixian Zhou, Lvxiong Wu, Kai Yuan, Bing Pan, Zhaoxiang Zhong, Weihong Xing (Source: Journal of Membrane Science)
Source: Journal of Membrane Science - March 29, 2020 Category: Materials Science Source Type: research

Homogeneous activation of peroxymonosulfate using a low-dosage cross-bridged cyclam manganese(II) complex for organic pollutant degradation via a nonradical pathway
Publication date: 15 July 2020Source: Journal of Hazardous Materials, Volume 394Author(s): Yuqing Yu, Peng Tan, Xinjue Huang, Junjie Tao, Yingying Liu, Raymond Jianxiong Zeng, Man Chen, Shungui Zhou (Source: Journal of Hazardous Materials)
Source: Journal of Hazardous Materials - March 27, 2020 Category: Environmental Health Source Type: research

Electrocatalysts: Synergistic Control of Structural Disorder and Surface Bonding Nature to Optimize the Functionality of Manganese Oxide as an Electrocatalyst and a Cathode for Li –O2 Batteries (Small 12/2020)
In article numberhttps://doi.org/10.1002/smll.2019032651903265, Yong ‐Mook Kang, Seong‐Ju Hwang, and co‐workers develop an efficient way to improve the electrocatalyst and Li–O2 battery performances of metal oxide via synergistic control of structural disorder and surface bonding nature. The amorphization and iodate anchoring are quite effective in improving electrocatalyst/electrode functionalities of δ‐MnO2 via the alteration of surface bonding character, the stabilization of Mn3+ species, and the enhanced charge transfer of interfaces. (Source: Small)
Source: Small - March 27, 2020 Category: Nanotechnology Authors: Xiaoyan Jin, Mihui Park, Seung ‐Jae Shin, Yujin Jo, Min Gyu Kim, Hyungjun Kim, Yong‐Mook Kang, Seong‐Ju Hwang Tags: Inside Front Cover Source Type: research

Facile preparation of high-performance cobalt–manganese layered double hydroxide/polypyrrole composite for battery-type asymmetric supercapacitors
Publication date: Available online 26 March 2020Source: Journal of Alloys and CompoundsAuthor(s): Yujin Guo, Shuo Zhang, Jiachen Wang, Zhiwei Liu, Youzhi Liu (Source: Journal of Alloys and Compounds)
Source: Journal of Alloys and Compounds - March 27, 2020 Category: Chemistry Source Type: research

Antagonist biocompatibilities of Zn-based materials functionalized with physiological active metal oxides.
Abstract Zinc coated with nanostructured ZnO flowers has received increasing attention as a versatile biomaterial for medical applications. Whatsoever, the potential of these materials to meet specific medical requirements must be explored. Despite in its infancy, surface functionalization is the key strategy to achieve this goal. The functionalization, successfully achieved with cooper (Cu), iron (Fe) or manganese (Mn) oxides (Ox), was highly dependent on the presence of the flowered structures, with the deep physicochemical characterization of these new surfaces revealing specific metal oxide distributions. The ...
Source: Colloids and Surfaces - March 27, 2020 Category: Biotechnology Authors: Alves MM, Mil-Homens D, Pinto S, Santos CF, Montemor MF Tags: Colloids Surf B Biointerfaces Source Type: research

Effect of A-site element on the performance of 3DOM manganese-based perovskite catalyst
Publication date: Available online 26 March 2020Source: Journal of Saudi Chemical SocietyAuthor(s): Xin Liu, Yongqiang Wang, Meng Zang, Lin Shi, Huiying Zhang, Chaocheng Zhao (Source: Journal of Saudi Chemical Society)
Source: Journal of Saudi Chemical Society - March 26, 2020 Category: Chemistry Source Type: research

Formation, stability and catalase-like activity of mononuclear manganese(II) and oxomanganese(IV) complexes in protic and aprotic solvents
New J. Chem., 2020, Advance Article DOI: 10.1039/C9NJ06004A, PaperBal ázs Kripli, Zoltán Garda, Bernadett Sólyom, Gyula Tircsó, József Kaizer Catalytic and stoichiometric H2O2 oxidation by [MnII(N4Py*)]2+ and [MnIV(N4Py*)(O)]2+ complexes as catalase mimics have been carried out. 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 - New J. Chem. latest articles)
Source: RSC - New J. Chem. latest articles - March 26, 2020 Category: Chemistry Authors: Bal ázs Kripli Source Type: research

IJERPH, Vol. 17, Pages 2231: Health Risk Assessment and Source Apportionment of Mercury, Lead, Cadmium, Selenium, and Manganese in Japanese Women: An Adjunct Study to the Japan Environment and Children ’s Study
In this study, we elucidated the major routes of exposure to three toxic elements (mercury, cadmium, and lead) and two essential elements (manganese and selenium) through diet, soil, house dust, and indoor air and assessed the potential health risks from these elements on women from the coastal area of Miyagi prefecture, Japan. Twenty-four-hour duplicate diet, house dust, soil, and indoor air samples were collected from 37 participants. Cd, Pb, Mn, and Se concentrations were measured using inductively coupled plasma mass spectrometry, and Hg concentrations using cold vapor atomic absorption spectrometry. We found that soil...
Source: International Journal of Environmental Research and Public Health - March 26, 2020 Category: Environmental Health Authors: Ma Iwai-Shimada Tatsuta Nakai Isobe Takagi Nishihama Nakayama Tags: Article Source Type: research

Mn(III)-Mediated Facile Access to Polysubstituted α-Naphthols from β-Keto Ester Derivatives and Terminal Alkynes
Synthesis DOI: 10.1055/s-0039-1690870 A novel manganese-mediated reaction for the synthesis of polysubstituted α-naphthols has been developed from β-keto esters and terminal alkynes. This system holds the advantages of readily available starting materials and mild conditions. Mechanistic investigations revealed that this reaction proceeds via a tandem radical cyclization process. [...] © Georg Thieme Verlag Stuttgart · New YorkArticle in Thieme eJournals: Table of contents  |  Abstract  |  Full text (Source: Synthesis)
Source: Synthesis - March 26, 2020 Category: Chemistry Authors: He, Lisheng Yang, Yuzhu Li, Fei Liu, Xiaolan Pan, Weidong Tags: paper Source Type: research

‘Graphene-MnO2’ Composite Supercapacitor Material accomplished tactically by using Liquid-Liquid and Solid-Liquid Interface Reaction Techniques.
New J. Chem., 2020, Accepted Manuscript DOI: 10.1039/C9NJ05898B, PaperSagar H. Patil, Aarti P. Gaikwad, Babasaheb J Waghmode, shivaram Dattatray sathaye, Kashinath Patil A novel methodology is described to grow architecture of 3-dimensional graphene nanosheets (GNS)-manganese oxide (MnO2) composite material to be used in supercapacitors. In situ growth of the three dimensional MnO2... 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 - March 25, 2020 Category: Chemistry Authors: Sagar H. Patil Source Type: research

Unambiguous localization of titanium and iron cations in doped manganese hollandite nanowires
Chem. Commun., 2020, Accepted Manuscript DOI: 10.1039/D0CC01888K, CommunicationJos é M González-Calbet, Isabel Gómez-Recio, Alberto Azor-Lafarga, Luisa Ruiz-Gonzalez, María Hernando, Marina Parras, José Juan Calvino, Maria Teresa Fernandez-Diaz, David Portehault, Clément Sanchez New insights into the chemical and structural features of iron or titanium-doped KxMnO2 hollandites are reported. Neutron diffraction and atomically resolved transmission electron microscopy elucidate the localization of the dopant... The content of this RSS Feed (c) The Royal Society of Chemistry (Source: ...
Source: RSC - Chem. Commun. latest articles - March 25, 2020 Category: Chemistry Authors: Jos é M González-Calbet Source Type: research

Synthesis of manganese dioxide nanorods-anchored graphene oxide composite for highly sensitive electrochemical sensing of dopamine
Analyst, 2020, Accepted Manuscript DOI: 10.1039/D0AN00348D, PaperZhanjun Yang, Juan Li, Huifang Shen, Suhua Yu, Geshan Zhang, Chuanli Ren, Xiaoya Hu In this research, a novel manganese dioxide nanorods-anckored graphene oxide (MnO2 NRs/GO) composite was synthesized by a simple hydrothermal method for the electrochemical sening application. A highly sensitive electrochemical sensor... The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Analyst latest articles)
Source: RSC - Analyst latest articles - March 25, 2020 Category: Chemistry Authors: Zhanjun Yang Source Type: research

[ASAP] Zinc and Molybdenum Co-Doped BiVO < sub > 4 < /sub > Nanoarray for Photoelectrochemical Diethylstilbestrol Analysis Based on the Dual-Competitive System of Manganese Hexacyanoferrate Hydrate Nanocubes
ACS Applied Materials& InterfacesDOI: 10.1021/acsami.0c04010 (Source: ACS Applied Materials and Interfaces)
Source: ACS Applied Materials and Interfaces - March 25, 2020 Category: Materials Science Authors: Yanrong Qian, Jinhui Feng, Rui Xu, Dawei Fan, Yu Du*, Xiang Ren*, Qin Wei, and Huangxian Ju Source Type: research

IJERPH, Vol. 17, Pages 2204: Toxic Metal Implications on Agricultural Soils, Plants, Animals, Aquatic life and Human Health
avumengwana The problem of environmental pollution is a global concern as it affects the entire ecosystem. There is a cyclic revolution of pollutants from industrial waste or anthropogenic sources into the environment, farmlands, plants, livestock and subsequently humans through the food chain. Most of the toxic metal cases in Africa and other developing nations are a result of industrialization coupled with poor effluent disposal and management. Due to widespread mining activities in South Africa, pollution is a common site with devastating consequences on the health of animals and humans likewise. In recent years, ta...
Source: International Journal of Environmental Research and Public Health - March 25, 2020 Category: Environmental Health Authors: Uchenna Okereafor Mamookho Makhatha Lukhanyo Mekuto Nkemdinma Uche-Okereafor Tendani Sebola Vuyo Mavumengwana Tags: Review Source Type: research

Manganese porphyrin, MnTE-2-PyP, treatment protects the prostate from radiation-induced fibrosis (RIF) by activating the NRF2 signaling pathway and enhancing SOD2 and sirtuin activity.
Abstract Radiation therapy is a frequently used treatment for prostate cancer patients. Manganese (III) meso-tetrakis (N-ethylpyridinium-2-yl) porphyrin (MnTE-2-PyP or T2E or BMX-010) and other similar manganese porphyrin compounds that scavenge superoxide molecules have been demonstrated to be effective radioprotectors and prevent the development of radiation-induced fibrosis (RIF). However, understanding the molecular pathway changes associated with these compounds remains limited for radioprotection. Recent RNA-sequencing data from our laboratory revealed that MnTE-2-PyP treatment activated the nuclear factor e...
Source: Free Radical Biology and Medicine - March 25, 2020 Category: Biology Authors: Shrishrimal S, Chatterjee A, Kosmacek EA, Davis PJ, McDonald JT, Oberley-Deegan RE Tags: Free Radic Biol Med Source Type: research

Recent trends of MnO2 derived adsorbents for water treatment: a review
New J. Chem., 2020, Accepted Manuscript DOI: 10.1039/C9NJ06392G, PerspectiveHusnain M. Syed Muhammad, Umar Asim, Azra Yaqub, Faisal Shahzad, Naseem Abbas Over the years, manganese dioxide (MnO2) and its different allotropes have gained significant research attention in the field of wastewater treatment because of their exciting physicochemical properties. This review covers... 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 - March 24, 2020 Category: Chemistry Authors: Husnain M. Syed Muhammad Source Type: research

A plasma-image-assisted method for matrix effect correction in laser-induced breakdown spectroscopy.
Abstract The matrix effect is one of the main bottlenecks for the laser-induced breakdown spectroscopy (LIBS) technique. In this work, image-assisted, laser-induced breakdown spectroscopy (IA-LIBS) based on the Lomakin-Scherbe formula was put forward as a correction to the matrix effect. The brightness and area information in the plasma image was extracted to correct the spectral line intensities among which the brightness information characterizes the plasma temperature, and the area information characterizes the ablative mass. To verify the feasibility of this method, the experiment was conducted on metal sample...
Source: Analytica Chimica Acta - March 24, 2020 Category: Chemistry Authors: Zhang D, Chu Y, Ma S, Zhang S, Cui H, Hu Z, Chen F, Sheng Z, Guo L, Lu Y Tags: Anal Chim Acta Source Type: research

In vivo Activity of Copper(II), Manganese(II), and Silver(I) 1,10-Phenanthroline Chelates Against Candida haemulonii Using the Galleria mellonella Model
This study utilized larvae of Galleria mellonella, a widely used model of in vivo infection, to examine C. haemulonii infection characteristics in response to different copper(II), manganese(II), and silver(I) chelates containing phen, which had demonstrated potent anti-C. haemulonii activity in a previous study. The results showed that C. haemulonii virulence was influenced by inoculum size and incubation temperature, and the host G. mellonella immune response was triggered in an inoculum-dependent manner reflected by the number of circulating immune cells (hemocytes) and observance of larval melanization process. All tes...
Source: Frontiers in Microbiology - March 24, 2020 Category: Microbiology Source Type: research

IJERPH, Vol. 17, Pages 2146: Cancer and Non-Cancer Risk Concerns from Metals in Electronic Cigarette Liquids and Aerosols
sa Wu We evaluated metal concentrations in e-liquids and e-aerosols from eight studies and estimated the range of corresponding cancer and non-cancer risks. Chromium and nickel were the leading contributors to cancer risk, with minor contributions from cadmium, lead, and arsenic. The increased cancer risks, assuming exposure to 2 mL/day, ranged from 5.7 to 30,000 additional cancers in a million e-cigarette users. The average cancer risk was 3 in 1000. Cancer risks in the mid to upper end of these ranges exceed acceptable levels. The hazard quotient (HQ) approach was used to evaluate non-cancer risks. Hazard quotients e...
Source: International Journal of Environmental Research and Public Health - March 24, 2020 Category: Environmental Health Authors: Jefferson Fowles Tracy Barreau Nerissa Wu Tags: Article Source Type: research

Copper catalysed oxidative α-sulfonylation of branched aldehydes using the acid enhanced reactivity of manganese(iv) oxide.
Copper catalysed oxidative α-sulfonylation of branched aldehydes using the acid enhanced reactivity of manganese(iv) oxide. Chem Commun (Camb). 2020 Mar 24;: Authors: Higham JI, Bull JA Abstract The oxidative coupling of secondary aldehydes and sulfinate salts is achieved using copper catalysis to form α-sulfonyl aldehydes. The use of an acidic co-solvent is important to adjust the oxidation potential of MnO2 as an oxidant. A broad range of sulfonylated aldehydes is prepared, and their further functionalisation is demonstrated. A dual ionic/radical pathway mechanism is proposed. PMID:...
Source: Chemical Communications - March 24, 2020 Category: Chemistry Authors: Higham JI, Bull JA Tags: Chem Commun (Camb) Source Type: research

Distribution, accumulation, and potential risks of heavy metals in soil and tea leaves from geologically different plantations.
This study aimed to estimate the impacts of geological difference on distribution of cadmium (Cd), lead (Pb), thallium (Tl), mercury (Hg), arsenic (As), antimony (Sb), chromium (Cr), nickel (Ni), and manganese (Mn) in soils and their accumulation in tea leaves, and further evaluate their health risks. 22 soils and corresponding young tea leaves (YTL) and old tea leaves (OTL), from geologically different plantations, were sampled and analyzed. Results showed that heavy metals concentrations in soils, derived from Permian limestone and Cambrian weakly mineralized dolomite, were obviously greater than those from Silurian clas...
Source: Ecotoxicology and Environmental Safety - March 21, 2020 Category: Environmental Health Authors: Zhang J, Yang R, Li YC, Peng Y, Wen X, Ni X Tags: Ecotoxicol Environ Saf Source Type: research

Chemical and Colloidal Dynamics of MnO2 Nanosheets in Biological Media Relevant for Nanosafety Assessment
Manganese dioxide (MnO2) nanosheets undergo complex reductive dissolution in the presence of diverse biomolecular reducing agents. When dissolution in cell culture media is slow, intact nanosheets can enter cells, where they can deplete intracellular glutathione and induce cytotoxicity through intracellular Mn2+ release. The results are used to classify MnO2 nanosheets within a new biopersistence ‐based hazard screening framework for 2D materials. AbstractMany layered crystal phases can be exfoliated or assembled into ultrathin 2D nanosheets with novel properties not achievable by particulate or fibrous nanoforms. Among ...
Source: Small - March 20, 2020 Category: Nanotechnology Authors: Evan P. Gray, Cynthia L. Browning, Charles A. Vaslet, Kyle D. Gion, Allen Green, Muchun Liu, Agnes B. Kane, Robert H. Hurt Tags: Full Paper Source Type: research

Design of a high strength, high ductility 12 wt% Mn medium manganese steel with hierarchical deformation behaviour
Publication date: Available online 19 March 2020Source: Materials Science and Engineering: AAuthor(s): T.W.J. Kwok, K.M. Rahman, X. Xu, I. Bantounas, J.F. Kelleher, S. Dasari, T. Alam, R. Banerjee, D. Dye (Source: Materials Science and Engineering: A)
Source: Materials Science and Engineering: A - March 20, 2020 Category: Materials Science Source Type: research

Unraveling the effects on lithium-ion cathode performance by cation doping M –Li2CuO2 solid solution samples (M = Mn, Fe and Ni)
Dalton Trans., 2020, Advance Article DOI: 10.1039/D0DT00273A, PaperM. A. Mart ínez-Cruz, A. Yañez-Aulestia, G. Ramos-Sánchez, M. Oliver-Tolentino, M. Vera, H. Pfeiffer, D. Ramírez-Rosales, I. González Manganese partial substitution reveals a drastic improvement in the electrochemical stability of Li2CuO2 during the charge/discharge processes, this is attributed to the increase in the superexchange interaction between copper sites and manganese. 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 C...
Source: RSC - Dalton Trans. latest articles - March 20, 2020 Category: Chemistry Authors: M. A. Mart ínez-Cruz Source Type: research

Effects of location, climate, soil conditions and plant species on levels of potentially toxic elements in Chinese Prickly Ash pericarps from the main cultivation regions in China.
This study reports levels of aluminium (Al), arsenic (As), cadmium (Cd), lead (Pb), manganese (Mn) and nickel (Ni) in the soils where Chinese Prickly Ash - Zanthoxylum bungeanum (ZB) and Z. armatum (ZA) are grown. Soil and pericarp samples were taken from 72 ZB and ZA plantations in 12 provinces. The soil pollution index (PI) was generally low for As (0.04-0.35), Pb (0.01-0.74) and Ni (0.15-1.06). The PI was higher for Cd (0.06-6.99) and was assessed at three categorical levels: 'low' (in 26% of soils), 'moderate' (in 67% of soils) and high (in 7% of soils). The majority (94%) of soils were slightly polluted with...
Source: Chemosphere - March 20, 2020 Category: Chemistry Authors: Ma Y, Fei X, Li J, Liu Y, Wei A Tags: Chemosphere Source Type: research

Manganese Catalyzed Selective Hydrogenation of Cyclic Imides to Diols and Amines
Green Chem., 2020, Accepted Manuscript DOI: 10.1039/D0GC00570C, CommunicationUttam Kumar Das, Trevor Janes, Amit Kumar, David Milstein Herein we report the selective hydrogenation of cyclic imides to diols and amines, homogeneously catalyzed for the first time by a complex of an earth-abundant metal, a manganese pincer complex.... The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Green Chem. latest articles)
Source: RSC - Green Chem. latest articles - March 20, 2020 Category: Chemistry Authors: Uttam Kumar Das Source Type: research

The human Golgi protein TMEM165 transports calcium and manganese in yeast and bacterial cells [Molecular Bases of Disease]
Cases of congenital disorders of glycosylation (CDG) have been associated with specific mutations within the gene encoding the human Golgi TMEM165 (transmembrane protein 165), belonging to UPF0016 (uncharacterized protein family 0016), a family of secondary ion transporters. To date, members of this family have been reported to be involved in calcium, manganese, and pH homeostases. Although it has been suggested that TMEM165 has cation transport activity, direct evidence for its Ca2+- and Mn2+-transporting activities is still lacking. Here, we functionally characterized human TMEM165 by heterologously expressing it in budd...
Source: Journal of Biological Chemistry - March 20, 2020 Category: Chemistry Authors: Jiri Stribny, Louise Thines, Antoine Deschamps, Philippe Goffin, Pierre Morsomme Tags: Membrane Biology Source Type: research

Identification of a selective manganese ionophore that enables nonlethal quantification of cellular manganese [Cell Biology]
We describe this activity and the development and implementation of an assay centered on this small molecule, named manganese-extracting small molecule (MESM). Using inductively-coupled plasma–MS, we validated that this assay, termed here “manganese-extracting small molecule estimation route” (MESMER), can accurately assess Mn in mammalian cells. Furthermore, we found evidence that MESM acts as a Mn-selective ionophore, and we observed that it has increased rates of Mn membrane transport, reduced cytotoxicity, and increased selectivity for Mn over calcium compared with two established Mn ionophores, calci...
Source: Journal of Biological Chemistry - March 20, 2020 Category: Chemistry Authors: Kyle J. Horning, Piyush Joshi, Rachana Nitin, Rekha C. Balachandran, Frank M. Yanko, Kwangho Kim, Plamen Christov, Michael Aschner, Gary A. Sulikowski, C. David Weaver, Aaron B. Bowman Tags: Methods and Resources Source Type: research

Vibrio parahaemolyticus Infection Influenced Trace Element Homeostasis, Impaired Antioxidant Function, and Induced Inflammation Response in Litopenaeus vannamei.
Abstract Vibrio parahaemolyticus (V. parahaemolyticus) caused huge diseases and economic losses in shrimp aquaculture. Understanding the infection mechanism might help develop new strategies for controlling pathogen outbreak. Redistribution of trace element homeostasis, accompanied by impairment of antioxidant status and immune response, was observed during various infections. Accordingly, we hypothesized that V. parahaemolyticus infection might influence trace element homeostasis, impair antioxidant function, and induce inflammation response in shrimp. In the present study, the aim of this study was to investigat...
Source: Biological Trace Element Research - March 20, 2020 Category: Biology Authors: Jiao L, Dai T, Zhong S, Jin M, Sun P, Zhou Q Tags: Biol Trace Elem Res Source Type: research

Introduction of manganese based lithium-ion Sieve-A review
Publication date: Available online 19 March 2020Source: Progress in Natural Science: Materials InternationalAuthor(s): Ding Weng, Haoyue Duan, Yacong Hou, Jing Huo, Lei Chen, Fang Zhang, Jiadao Wang (Source: Progress in Natural Science: Materials International)
Source: Progress in Natural Science: Materials International - March 19, 2020 Category: Materials Science Source Type: research

Formation, stability and catalase-like activity of a mononuclear manganese(II) and oxomanganese(IV) complexes in protic and aprotic solvents
New J. Chem., 2020, Accepted Manuscript DOI: 10.1039/C9NJ06004A, PaperBal ázs Kripli, Zoltán Garda, Bernadett Sólyom, Gyula Tircsó, József Kaizer for the detoxification of H2O2, and may give further information about the role of the metal cofactors during the dismutation process. In this work we present the synthesis and characterization... 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 - March 19, 2020 Category: Chemistry Authors: Bal ázs Kripli Source Type: research

Synthetic manganese-calcium cluster similar to the catalyst of Photosystem II: Challenges for biomimetic water oxidation
Dalton Trans., 2020, Accepted Manuscript DOI: 10.1039/D0DT00536C, PaperYounes Mousazadeh, Mohammad Reza Mohammadi, Robabeh Bagheri, Rahman Bikas, Petko Chernev, Zhenlun Song, Tadeusz Lis, Milosz Siczek, Nader Noshiranzadeh, stephan mebs, Holger Dau, Ivelina Zaharieva, Mohammad Mahdi Najafpour Herein, we report the synthesis, characterization, crystal structure, density functional theory calculations, and water-oxidizing activity of a pivalate Mn-Ca cluster. All of the manganese atoms in the cluster are Mn... The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Dalton Trans. latest articles)
Source: RSC - Dalton Trans. latest articles - March 19, 2020 Category: Chemistry Authors: Younes Mousazadeh Source Type: research

Safety ‐by‐Design of Metal Oxide Nanoparticles Based on the Regulation of their Energy Edges
Various transition metals are doped into Mn3O4 NPs, aiming at tuning theirEf far away fromEv and significantly reducing their toxicity. Zn ‐doped Mn3O4 NPs display the largest energy difference betweenEf andEv, and simultaneously exhibit the low ROS generation ability and weak in vitro and in vivo oxidative injury. AbstractThe safety of metal oxide (MOx) nanoparticles (NPs) has been highly concerned because of their wide application and potential toxicological injury. The safe ‐by‐design strategy is usually developed to make safer MOx NPs based on regulation of their physicochemical properties. In the present study, ...
Source: Small - March 19, 2020 Category: Nanotechnology Authors: Yanlin Feng, Yun Chang, Keqiang Xu, Runxiao Zheng, Xiaqing Wu, Yan Cheng, Haiyuan Zhang Tags: Full Paper Source Type: research

Mycoremediation of vinasse by surface response methodology and preliminary studies in air-lift bioreactors.
va DP Abstract This work evaluated the degradation of sugarcane vinasse with the production of biomass by Pleurotus sajor-caju CCB020, considering the combination of temperature and pH effects, using surface response methodology (RSM). A 22 complete central factorial composite experiment was used to analyze the results. The optimum temperature and pH values were respectively 27 °C and 5.6 for maximum decolorization yield and 20 °C and 6.8 for maximum biomass production. In parallel, scale-up experiments under conditions of 30 °C and initial pH 5.0 were evaluated in two different air-lift...
Source: Chemosphere - March 19, 2020 Category: Chemistry Authors: Aragão MS, Menezes DB, Ramos LC, Oliveira HS, Bharagava RN, Romanholo Ferreira LF, Teixeira JA, Ruzene DS, Silva DP Tags: Chemosphere Source Type: research

Chemical and Colloidal Dynamics of MnO2 Nanosheets in Biological Media Relevant for Nanosafety Assessment
Manganese dioxide (MnO2) nanosheets undergo complex reductive dissolution in the presence of diverse biomolecular reducing agents. When dissolution in cell culture media is slow, intact nanosheets can enter cells, where they can deplete intracellular glutathione and induce cytotoxicity through intracellular Mn2+ release. The results are used to classify MnO2 nanosheets within a new biopersistence ‐based hazard screening framework for 2D materials. AbstractMany layered crystal phases can be exfoliated or assembled into ultrathin 2D nanosheets with novel properties not achievable by particulate or fibrous nanoforms. Among ...
Source: Small - March 19, 2020 Category: Nanotechnology Authors: Evan P. Gray, Cynthia L. Browning, Charles A. Vaslet, Kyle D. Gion, Allen Green, Muchun Liu, Agnes B. Kane, Robert H. Hurt Tags: Full Paper Source Type: research

Manganese-doped tremella-like nickel oxide as biomimetic sensors toward highly sensitive detection of glucose in human serum
Publication date: Available online 17 March 2020Source: Journal of Electroanalytical ChemistryAuthor(s): Jiechang Gao, Ting Meng, Shiyu Lu, Xiaoqing Ma, Yuhuan Zhang, Daoling Fu, Zhisong Lu, Chang Ming Li (Source: Journal of Electroanalytical Chemistry)
Source: Journal of Electroanalytical Chemistry - March 18, 2020 Category: Chemistry Source Type: research

Assessment of Rice Marketed in Iran with Emphasis on Toxic and Essential Elements; Effect of Different Cooking Methods.
Abstract Rice is one of the most valuable nutrients in the diet of most people in the world. The aim of this study was to evaluate the effect of various pre-cooking (washing, soaking) and cooking processes (traditional and rinse) of rice on the amount of toxic and essential elements in the various brands of rice in Iran and assessing human health risks from their carcinogenic and non-carcinogenic effects. For this purpose, totally, 144 sample sizes were examined from three brand (Iranian (n = 48), Pakistani (n = 48), and Indian (n = 48)) in order to the amount of toxic and e...
Source: Biological Trace Element Research - March 18, 2020 Category: Biology Authors: Shariatifar N, Rezaei M, Alizadeh Sani M, Alimohammadi M, Arabameri M Tags: Biol Trace Elem Res Source Type: research

Safety ‐by‐Design of Metal Oxide Nanoparticles Based on the Regulation of their Energy Edges
Various transition metals are doped into Mn3O4 NPs, aiming at tuning theirEf far away fromEv and significantly reducing their toxicity. Zn ‐doped Mn3O4 NPs display the largest energy difference betweenEf andEv, and simultaneously exhibit the low ROS generation ability and weak in vitro and in vivo oxidative injury. AbstractThe safety of metal oxide (MOx) nanoparticles (NPs) has been highly concerned because of their wide application and potential toxicological injury. The safe ‐by‐design strategy is usually developed to make safer MOx NPs based on regulation of their physicochemical properties. In the present study, ...
Source: Small - March 18, 2020 Category: Nanotechnology Authors: Yanlin Feng, Yun Chang, Keqiang Xu, Runxiao Zheng, Xiaqing Wu, Yan Cheng, Haiyuan Zhang Tags: Full Paper Source Type: research

Copper Catalysed Oxidative α-Sulfonylation of Branched Aldehydes Using the Acid Enhanced Reactivity of Manganese(IV) Oxide
Chem. Commun., 2020, Accepted Manuscript DOI: 10.1039/D0CC01576H, CommunicationJoe Higham, James A Bull The oxidative coupling of secondary aldehydes and sulfinate salts is achieved using copper catalysis to form a-sulfonyl aldehydes. The use of an acidic co-solvent is important to adjust the oxidation... The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Chem. Commun. latest articles)
Source: RSC - Chem. Commun. latest articles - March 17, 2020 Category: Chemistry Authors: Joe Higham Source Type: research

Promoting hole transfer for photoelectrochemical water oxidation through a manganese cluster catalyst bioinspired by natural photosystem II
Chem. Commun., 2020, Advance Article DOI: 10.1039/D0CC00955E, CommunicationBin Gao, Tao Wang, Yang Li, Xiaoli Fan, Hao Gong, Cheng Jiang, Peng Li, Xianli Huang, Jianping He A Mn4O4–cubane molecule bioinspired by the natural photosystem II was used as a co-catalyst in photoelectrochemical water oxidation. 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 - March 17, 2020 Category: Chemistry Authors: Bin Gao Source Type: research