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Hu Y, Zhang S, Zhou Z, Cao Z. Heterogeneous Coprecipitation of Nanocrystals with Metals on Substrates. Acc Chem Res 2024; 57:1254-1263. [PMID: 38488208 DOI: 10.1021/acs.accounts.3c00807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/08/2024]
Abstract
ConspectusThe heterogeneous coprecipitation of nanocrystals with metals on substrates plays a significant role in both natural and engineered systems. Due to the small dimensions and thereby the large specific surface area, nanocrystal coprecipitation with metals, which is ubiquitous in natural settings, exerts drastic effects on the biogeochemical cycling of metals on the earth's crust. Meanwhile, the controlled synthesis of nanocrystals with metal doping to achieve tunable size/composition enables their broad applications as adsorbents and catalysts in many engineered settings. Despite their importance, complex interactions among aqueous ions/polymers, nanocrystals, substrates, and metals are far from being well-understood, leaving the controlling mechanisms for nanocrystal formation with metals on substrates uncovered.In this Account, we discuss our systematic investigation over the past 10 years of the heterogeneous formation of representative nanocrystals with metals on typical substrates. We chose Fe(OH)3 and BaSO4 as representative nanocrystals. Mechanisms for varied metal coprecipitation were also investigated for both types of nanocrystals (i.e., Fe, Al, Cr, Cu, and Pb)(OH)3 and (Ba, Sr)(SO4, SeO4, and SeO3)). Bare SiO2 and Al2O3, as well as those coated with varied organics, were selected as geologically or synthetically representative substrates. Through the integration of state-of-the-art nanoscale interfacial characterization techniques with theoretical calculations, the complex interactions during nanocrystal formation at interfaces were probed and the controlling mechanisms were identified.For BaSO4 and Fe(OH)3 formation on substrates, the local supersaturation levels near substrates were controlled by Ba2+ adsorption and the electrostatic attraction of Fe(OH)3 monomer/polymer to substrates, respectively. Meanwhile, substrate hydrophobicity controlled the interfacial energy for the nucleation of both nanocrystals on (in)organic substrates. Metal ions' (i.e., Cr/Al/Cu/Pb) hydrolysis constants and substrates' dielectric constants controlled metal ion adsorption onto substrates, which altered the surface charges of substrates, thus controlling heterogeneous Fe(OH)3 nanocrystal formation on substrates by electrostatic interactions. The sizes and compositions of heterogeneous (Fe, Cr)(OH)3 and (Ba, Sr)(SO4, SeO4, SeO3) formed on substrates were found to be distinct from those of homogeneous precipitates formed in solution. The substrate (de)protonation could alter the local solution's pH and the substrates' surface charge; substrates could also adsorb cations, affecting local Fe/Cr/Ba/Sr ion concentrations at solid-water interfaces, thus controlling the amount/size/composition of nanocrystals by tuning their nucleation/growth/deposition on substrates. From slightly supersaturated solution, homogeneous coprecipitates of microsized (Ba, Sr)(SO4, SeO4, SeO3) formed through growth, with little Sr/Se(VI) incorporation due to higher solubilities of SrSO4 and BaSeO4 over BaSO4. While cation enrichment near substrates made the local solution highly supersaturated, nanosized coprecipitates formed on substrates through nucleation, with more Sr/Se(VI) incorporation due to lower interfacial energies of SrSO4 and BaSeO4 over BaSO4. The new insights gained advanced our understanding of the biogeochemical cycling of varied elements at solid-water interfaces and of the controlled synthesis of functional nanocrystals.
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Affiliation(s)
- Yandi Hu
- School of Environmental Science and Engineering, Peking University, Beijing 100871, China
- State Environmental Protection Key Laboratory of All Material Fluxes in River Ecosystems, Beijing 100871, China
| | - Suona Zhang
- School of Environmental Science and Engineering, Peking University, Beijing 100871, China
- State Environmental Protection Key Laboratory of All Material Fluxes in River Ecosystems, Beijing 100871, China
| | - Zehao Zhou
- School of Environmental Science and Engineering, Peking University, Beijing 100871, China
- State Environmental Protection Key Laboratory of All Material Fluxes in River Ecosystems, Beijing 100871, China
| | - Zhiqian Cao
- School of Environmental Science and Engineering, Peking University, Beijing 100871, China
- State Environmental Protection Key Laboratory of All Material Fluxes in River Ecosystems, Beijing 100871, China
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2
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Wong ML, Prabhu A. Cells as the first data scientists. J R Soc Interface 2023; 20:20220810. [PMID: 36751931 PMCID: PMC9905997 DOI: 10.1098/rsif.2022.0810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023] Open
Abstract
The concepts that we generally associate with the field of data science are strikingly descriptive of the way that life, in general, processes information about its environment. The 'information life cycle', which enumerates the stages of information treatment in data science endeavours, also captures the steps of data collection and handling in biological systems. Similarly, the 'data-information-knowledge ecosystem', developed to illuminate the role of informatics in translating raw data into knowledge, can be a framework for understanding how information is constantly being transferred between life and the environment. By placing the principles of data science in a broader biological context, we see the activities of data scientists as the latest development in life's ongoing journey to better understand and predict its environment. Finally, we propose that informatics frameworks can be used to understand the similarities and differences between abiotic complex evolving systems and life.
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Affiliation(s)
- Michael L. Wong
- Earth and Planets Laboratory, Carnegie Institution for Science, Washington, DC 20015, USA,NHFP Sagan Fellow, NASA Hubble Fellowship Program, Space Telescope Science Institute, Baltimore, MD 21218, USA
| | - Anirudh Prabhu
- Earth and Planets Laboratory, Carnegie Institution for Science, Washington, DC 20015, USA
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3
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Müller G, Börker J, Sluijs A, Middelburg JJ. Detrital Carbonate Minerals in Earth's Element Cycles. GLOBAL BIOGEOCHEMICAL CYCLES 2022; 36:e2021GB007231. [PMID: 35859702 PMCID: PMC9285522 DOI: 10.1029/2021gb007231] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 02/18/2022] [Accepted: 05/04/2022] [Indexed: 05/27/2023]
Abstract
We investigate if the commonly neglected riverine detrital carbonate fluxes might reconciliate several chemical mass balances of the global ocean. Particulate inorganic carbon (PIC) concentrations in riverine suspended sediments, that is, carbon contained by these detrital carbonate minerals, were quantified at the basin and global scale. Our approach is based on globally representative data sets of riverine suspended sediment composition, catchment properties, and a two-step regression procedure. The present-day global riverine PIC flux is estimated at 3.1 ± 0.3 Tmol C/y (13% of total inorganic carbon export and 4% of total carbon export) with a flux-weighted mean concentration of 0.26 ± 0.03 wt%. The flux prior to damming was 4.1 ± 0.5 Tmol C/y. PIC fluxes are concentrated in limestone-rich, rather dry and mountainous catchments of large rivers near Arabia, South East Asia, and Europe with 2.2 Tmol C/y (67.6%) discharged between 15°N and 45°N. Greenlandic and Antarctic meltwater discharge and ice-rafting additionally contribute 0.8 ± 0.3 Tmol C/y. This amount of detrital carbonate minerals annually discharged into the ocean implies a significant contribution of calcium (∼4.75 Tmol Ca/y) and alkalinity fluxes (∼10 Tmol (eq)/y) to marine mass balances and moderate inputs of strontium (∼5 Gmol Sr/y) based on undisturbed riverine and cryospheric inputs and a dolomite/calcite ratio of 0.1. Magnesium fluxes (∼0.25 Tmol Mg/y), mostly hosted by less-soluble dolomite, are rather negligible. These unaccounted fluxes help in elucidating respective marine mass balances and potentially alter conclusions based on these budgets.
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Affiliation(s)
- Gerrit Müller
- Department of Earth SciencesUtrecht UniversityUtrechtThe Netherlands
| | - Janine Börker
- Institute for GeologyCEN (Center for Earth System Research and Sustainability)Universität HamburgHamburgGermany
| | - Appy Sluijs
- Department of Earth SciencesUtrecht UniversityUtrechtThe Netherlands
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4
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Ragazzola F, Kolzenburg R, Zekonyte J, Teichert S, Jiang C, Žuljević A, Caragnano A, Falace A. Structural and Elemental Analysis of the Freshwater, Low-Mg Calcite Coralline Alga Pneophyllum cetinaensis. PLANTS 2020; 9:plants9091089. [PMID: 32847147 PMCID: PMC7570384 DOI: 10.3390/plants9091089] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 08/17/2020] [Accepted: 08/18/2020] [Indexed: 11/16/2022]
Abstract
Coralline algae are one of the most diversified groups of red algae and represent a major component of marine benthic habitats from the poles to the tropics. This group was believed to be exclusively marine until 2016, when the first freshwater coralline algae Pneophyllum cetinaensis was discovered in the Cetina River, southern Croatia. While several studies investigated the element compositions of marine coralline algal thalli, no information is yet available for the freshwater species. Using XRD, LA-ICP-MS and nano indentation, this study presents the first living low-Mg calcite coralline algae with Mg concentrations ten times lower than is common for the average marine species. Despite the lower Mg concentrations, hardness and elastic modulus (1.71 ± 1.58 GPa and 29.7 ± 18.0 GPa, respectively) are in the same range as other marine coralline algae, possibly due to other biogenic impurities. When compared to marine species, Ba/Ca values were unusually low, even though Ba concentrations are generally higher in rivers than in seawater. These low values might be linked to different physical and chemical characteristics of the Cetina River.
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Affiliation(s)
- Federica Ragazzola
- Institute of Marine Science, University of Portsmouth, Portsmouth PO4 9LY, UK;
- Correspondence:
| | - Regina Kolzenburg
- Institute of Marine Science, University of Portsmouth, Portsmouth PO4 9LY, UK;
| | - Jurgita Zekonyte
- School of Engineering, University of Portsmouth, Portsmouth PO1 3DJ, UK; (J.Z.); (C.J.)
| | - Sebastian Teichert
- GeoZentrum Nordbayern, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany;
| | - Chulin Jiang
- School of Engineering, University of Portsmouth, Portsmouth PO1 3DJ, UK; (J.Z.); (C.J.)
| | - Ante Žuljević
- Institute of Oceanography and Fisheries, 21000 Split, Croatia;
| | - Annalisa Caragnano
- Department of Life Sciences, University of Trieste, 34127 Trieste, Italy; (A.C.); (A.F.)
| | - Annalisa Falace
- Department of Life Sciences, University of Trieste, 34127 Trieste, Italy; (A.C.); (A.F.)
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5
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van der Schyff V, Kwet Yive NSC, Bouwman H. Metal concentrations in corals from South Africa and the Mascarene Basin: A first assessment for the Western Indian Ocean. CHEMOSPHERE 2020; 239:124784. [PMID: 31520976 DOI: 10.1016/j.chemosphere.2019.124784] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Revised: 08/06/2019] [Accepted: 09/04/2019] [Indexed: 06/10/2023]
Abstract
Little knowledge exists on the state of metal contamination in corals from the Western Indian Ocean (WIO). Fragments of four soft and five hard coral genera were collected from five sites in the WIO- Sodwana Bay and Aliwal Shoal from South Africa, and Agalega, Rodrigues, and St. Brandon's Rock from the Mascarene Basin. Fragments were analysed for 31 metallic elements using inductively coupled plasma mass spectrometry. Corals from the WIO contained lower concentrations of most metals than corals from the Red Sea. South African corals contained higher concentrations of most of the metallic elements than the Mascarene corals. Sinularia was the coral with the most elements at the highest mean concentrations. A very high concentration of Ni was found in Sinularia (1300 mg/kg dm) from Sodwana Bay. Corals from the Mascarene Islands, especially Agalega, had comparatively low concentrations and could serve as a benchmark for corals from other regions.
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Affiliation(s)
- Veronica van der Schyff
- Research Unit for Environmental Sciences and Management, North-West University, Potchefstroom, South Africa.
| | | | - Hindrik Bouwman
- Research Unit for Environmental Sciences and Management, North-West University, Potchefstroom, South Africa
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6
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Organic interfaces enhance strontium content of marine barite. Proc Natl Acad Sci U S A 2019; 116:13161-13162. [PMID: 31201221 DOI: 10.1073/pnas.1908013116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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7
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Medas D, Carlomagno I, Meneghini C, Aquilanti G, Araki T, Bedolla DE, Buosi C, Casu MA, Gianoncelli A, Kuncser AC, Adrian Maraloiu V, De Giudici G. Zinc incorporation in marine bivalve shells grown in mine-polluted seabed sediments: a case study in the Malfidano mining area (SW Sardinia, Italy). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:36645-36660. [PMID: 30377963 DOI: 10.1007/s11356-018-3504-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Accepted: 10/16/2018] [Indexed: 06/08/2023]
Abstract
Zinc incorporation into marine bivalve shells belonging to different genera (Donax, Glycymeris, Lentidium, and Chamelea) grown in mine-polluted seabed sediments (Zn up to 1% w/w) was investigated using x-ray diffraction (XRD), chemical analysis, soft x-ray microscopy combined with low-energy x-ray fluorescence (XRF) mapping, x-ray absorption spectroscopy (XAS), and transmission electron microscopy (TEM). These bivalves grew their shells, producing aragonite as the main biomineral and they were able to incorporate up to 2.0-80 mg/kg of Zn, 5.4-60 mg/kg of Fe and 0.5-4.5 mg/kg of Mn. X-ray absorption near edge structure (XANES) analysis revealed that for all the investigated genera, Zn occurred as independent Zn mineral phases, i.e., it was not incorporated or adsorbed into the aragonitic lattice. Overall, our results indicated that Zn coordination environment depends on the amount of incorporated Zn. Zn phosphate was the most abundant species in Donax and Lentidium genera, whereas, Chamelea shells, characterized by the highest Zn concentrations, showed the prevalence of Zn-cysteine species (up to 56% of total speciation). Other Zn coordination species found in the investigated samples were Zn hydrate carbonate (hydrozincite) and Zn phosphate. On the basis of the coordination environments, it was deduced that bivalves have developed different biogeochemical mechanisms to regulate Zn content and its chemical speciation and that cysteine plays an important role as an active part of detoxification mechanism. This work represents a step forward for understanding bivalve biomineralization and its significance for environmental monitoring and paleoreconstruction.
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Affiliation(s)
- Daniela Medas
- Department of Chemical and Geological Sciences, University of Cagliari, Cagliari, Italy.
| | - Ilaria Carlomagno
- Department of Sciences, University of Roma Tre, Rome, Italy
- Elettra-Sincrotrone Trieste, Basovizza, Trieste, Italy
| | | | | | - Tohru Araki
- Diamond Light Source, Diamond House, Harwell Science and Innovation Campus, Oxfordshire, Didcot, UK
| | | | - Carla Buosi
- Department of Chemical and Geological Sciences, University of Cagliari, Cagliari, Italy
| | - Maria Antonietta Casu
- UOS of Cagliari, National Research Council, Scientific and Technological Park of Sardinia POLARIS, Institute of Translational Pharmacology, Pula, Italy
| | | | - Andrei C Kuncser
- Laboratory of Atomic Structures and Defects in Advanced Materials, National Institute of Materials Physics, Atomistilor 405A, Magurele, Romania
| | - V Adrian Maraloiu
- Laboratory of Atomic Structures and Defects in Advanced Materials, National Institute of Materials Physics, Atomistilor 405A, Magurele, Romania
| | - Giovanni De Giudici
- Department of Chemical and Geological Sciences, University of Cagliari, Cagliari, Italy
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8
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Saovieng S, Wu J, Huang CY, Kao CL, Higgins MF, Chuanchaiyakul R, Kuo CH. Deep Ocean Minerals Minimize Eccentric Exercise-Induced Inflammatory Response of Rat Skeletal Muscle. Front Physiol 2018; 9:1351. [PMID: 30323766 PMCID: PMC6172318 DOI: 10.3389/fphys.2018.01351] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Accepted: 09/06/2018] [Indexed: 12/21/2022] Open
Abstract
Background: We have previously shown an accelerated recovery from muscle fatigue in men challenged by prolonged exercise after oral deep ocean minerals (DOM) supplementation. Here, we hypothesized a decrease in eccentric exercise-induced muscle inflammation in rats regularly consuming DOM-containing drinks (hardness 600 mg/L and fructose 11%). Methods: Forty-seven male Sprague Dawley rats were randomized into 4 groups: Control (C, N = 12), Fructose (F, N = 12), Fructose+Exercise (FE, N = 12), and Fructose+Exercise+DOM (FED, N = 11). Since fructose is a commonly used ingredient in beverages, 11% of fructose was added as a vehicle of the study. Soleus muscles of rats were analyzed 24 h after an acute bout of downhill running following 9 weeks of DOM supplementation. Results: Leukocyte infiltration and TNF-α mRNA of muscle in the FE group were 5 times and 4 times greater the F group, respectively, (P < 0.05). Both markers in the FED group were significantly lower than those in the FE group (P < 0.05). IL-10 mRNA of muscle in the F group was >eight fold greater than the C group (P < 0.05). The reduced glutathione (GSH) of muscle in the F group was 34% lower than that in the C group (P < 0.05). However, GSH levels were similar for the C and FED groups. Conclusion: Prolonged fructose supplementation modulates inflammatory balance of rat skeletal muscle. The results of the study suggest that DOM can minimize eccentric exercise-induced inflammatory cytokine responses in rat skeletal muscle.
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Affiliation(s)
- Suchada Saovieng
- Laboratory of Exercise Biochemistry, University of Taipei, Taipei, Taiwan
| | - Jinfu Wu
- Laboratory of Exercise Biochemistry, University of Taipei, Taipei, Taiwan
| | - Chih-Yang Huang
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan
| | - Chung-Lan Kao
- Department of Healthcare Administration, Asia University, Taichung, Taiwan
| | - Matthew F Higgins
- Department of Life Sciences, University of Derby, Derby, United Kingdom
| | | | - Chia-Hua Kuo
- Laboratory of Exercise Biochemistry, University of Taipei, Taipei, Taiwan.,Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan
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Spatial and Seasonal Variation of Biomineral Suspended Particulate Matter Properties in High-Turbid Nearshore and Low-Turbid Offshore Zones. WATER 2017. [DOI: 10.3390/w9090694] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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10
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Polgári M, Bérczi S, Horiuchi K, Matsuzaki H, Kovács T, Józsa S, Bendő Z, Fintor K, Fekete J, Homonnay Z, Kuzmann E, Gucsik A, Gyollai I, Kovács J, Dódony I. Characterization and 10Be content of iron carbonate concretions for genetic aspects - Weathering, desert varnish or burning: Rim effects in iron carbonate concretions. JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 2017; 173:58-69. [PMID: 28011110 DOI: 10.1016/j.jenvrad.2016.11.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Revised: 11/06/2016] [Accepted: 11/07/2016] [Indexed: 06/06/2023]
Abstract
The research investigated three iron carbonate (siderite) sedimentary concretions from Nagykovácsi, Úri and Délegyháza, Hungary. To identify possible source rocks and effects of the glaze-like exposed surface of the concretions, we carried on comparative petrological, mineralogical, geochemical and isotopic studies. The samples were microbially mediated siderite concretions with embedded metamorphous and igneous mineral clasts, and had specific rim belts characterized by semi-concentric outer Fe-oxide layers, fluffy pyrite-rich outer belts and siderite inner parts. We investigated the cross section of the Fe-carbonate concretions by independent methodologies in order to identify their rim effects. Their surficial oxide layers showed evidence of degassing of the exposed surface caused most probably by elevated temperatures. The inner rim pyrite belt in the concretions excluded the possibility of a prolonged wet surface environment. Microtextural and mineralogical features did not support desert varnish formation. 10Be nuclide values of the Nagykovácsi and Uri concretions were far above the level of terrestrial in-situ cosmogenic nuclides, but they were consistent with the lowest levels for meteorites. Though the data were not conclusive to confirm any kind of known origin, they are contradictary, and open possibilities for a scenario of terrestrial meteorite origin.
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Affiliation(s)
- Márta Polgári
- Research Center for Astronomy and Geosciences, Geobiomineralization and Astrobiological Research Group, Institute for Geology and Geochemistry, Hungarian Academy of Sciences, 1112, Budapest, Budaörsi út. 45, Hungary; Eszterházy Károly University, Dept. of Physical Geography and Geoinformatics, Leányka str. 6, 3300, Eger, Hungary.
| | - Szaniszló Bérczi
- Eötvös University, Faculty of Science, Dept. of Materials Physics, Cosmic Materials Space Res. Group, 1117, Budapest, Pázmány P. s. 1/a, Hungary.
| | - Kazuho Horiuchi
- Graduate School of Science and Technology, Hirosaki University, 3, Bunkyo-chou, Hirosaki, Aomori, 036-8561, Japan.
| | - Hiroyuki Matsuzaki
- Micro Analysis Laboratory, Tandem Accelerator (MALT), The University Museum, The University of Tokyo, 2-11-16, Yayoi, Bunkyo-ku, Tokyo, 113-0032, Japan.
| | - Tibor Kovács
- Institute of Radiochemistry and Radioecology, University of Pannonia, Egyetem Str. 10, Veszprém, H-8200, Hungary.
| | - Sándor Józsa
- Eötvös University, Dept. Petrology and Geochemistry, 1117, Budapest, Pázmány P. s. 1/c, Hungary
| | - Zsolt Bendő
- Eötvös University, Dept. Petrology and Geochemistry, 1117, Budapest, Pázmány P. s. 1/c, Hungary
| | - Krisztián Fintor
- Szeged University, Department of Mineralogy, Geochemistry and Petrology, Egyetem str. 2-6, 6702, Szeged, Hungary.
| | - József Fekete
- Research Center for Astronomy and Geosciences, Geobiomineralization and Astrobiological Research Group, Institute for Geology and Geochemistry, Hungarian Academy of Sciences, 1112, Budapest, Budaörsi út. 45, Hungary
| | - Zoltán Homonnay
- Eötvös University, Inst. of Chemistry, 1117, Budapest, Pázmány P. s. 1/a, Hungary
| | - Ernő Kuzmann
- Eötvös University, Inst. of Chemistry, 1117, Budapest, Pázmány P. s. 1/a, Hungary
| | - Arnold Gucsik
- University of Johannesburg, Department of Geology, 2600, Auckland Park, Johannesburg, South Africa
| | - Ildikó Gyollai
- Research Center for Astronomy and Geosciences, Geobiomineralization and Astrobiological Research Group, Institute for Geology and Geochemistry, Hungarian Academy of Sciences, 1112, Budapest, Budaörsi út. 45, Hungary
| | - János Kovács
- Department of Geology & Meteorology, Environmental Analytical & Geoanalytical Research Group, Szentágothai Research Centre, University of Pécs, 7624, Pécs, Ifjúság útja 6 and 20, Hungary
| | - István Dódony
- Eötvös University, Dept. Mineralogy, H-1117, Budapest, Pázmány P. s. 1/c, Hungary
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11
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Adel M, Elbehery AHA, Aziz SK, Aziz RK, Grossart HP, Siam R. Viruses-to-mobile genetic elements skew in the deep Atlantis II brine pool sediments. Sci Rep 2016; 6:32704. [PMID: 27596223 PMCID: PMC5011723 DOI: 10.1038/srep32704] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Accepted: 07/25/2016] [Indexed: 11/24/2022] Open
Abstract
The central rift of the Red Sea has 25 brine pools with different physical and geochemical characteristics. Atlantis II (ATIID), Discovery Deeps (DD) and Chain Deep (CD) are characterized by high salinity, temperature and metal content. Several studies reported microbial communities in these brine pools, but few studies addressed the brine pool sediments. Therefore, sediment cores were collected from ATIID, DD, CD brine pools and an adjacent brine-influenced site. Sixteen different lithologic sediment sections were subjected to shotgun DNA pyrosequencing to generate 1.47 billion base pairs (1.47 × 109 bp). We generated sediment-specific reads and attempted to annotate all reads. We report the phylogenetic and biochemical uniqueness of the deepest ATIID sulfur-rich brine pool sediments. In contrary to all other sediment sections, bacteria dominate the deepest ATIID sulfur-rich brine pool sediments. This decrease in virus-to-bacteria ratio in selected sections and depth coincided with an overrepresentation of mobile genetic elements. Skewing in the composition of viruses-to-mobile genetic elements may uniquely contribute to the distinct microbial consortium in sediments in proximity to hydrothermally active vents of the Red Sea and possibly in their surroundings, through differential horizontal gene transfer.
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Affiliation(s)
- Mustafa Adel
- Biology Department, Biotechnology Graduate Program and YJ-Science and Technology Research Center, American University in Cairo, Egypt
| | - Ali H A Elbehery
- Biology Department, Biotechnology Graduate Program and YJ-Science and Technology Research Center, American University in Cairo, Egypt
| | - Sherry K Aziz
- Biology Department, Biotechnology Graduate Program and YJ-Science and Technology Research Center, American University in Cairo, Egypt
| | - Ramy K Aziz
- Department of Microbiology and Immunology, Faculty of Pharmacy, Cairo University, Egypt
| | - Hans-Peter Grossart
- Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Alte Fischerhütte 2, 16775 Stechlin, Germany.,Institute of Biochemistry and Biology, University of Potsdam, Am Neuen Palais 10, 14469 Potsdam, Germany
| | - Rania Siam
- Biology Department, Biotechnology Graduate Program and YJ-Science and Technology Research Center, American University in Cairo, Egypt
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12
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Kaloo MA, Sunder Raman R, Sankar J. Novel structurally tuned DAMN receptor for “in situ” diagnosis of bicarbonate in environmental waters. Analyst 2016; 141:2367-70. [DOI: 10.1039/c6an00218h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel receptor for specific and prompt bicarbonate anion (HCO3−) recognition is presented. HCO3− triggers facile ICT, which provides “in situ” recognition of water soluble carbonates. For the first time, “on-site” estimation of HCO3− in environmental waters is demonstrated.
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Affiliation(s)
- Masood Ayoub Kaloo
- Department of Centre for Research on Environmental and Sustainable Technologies
- Indian Institute of Science Education and Research Bhopal
- Bhopal
- India-462066
- Department of Earth and Environmental Sciences
| | - Ramya Sunder Raman
- Department of Centre for Research on Environmental and Sustainable Technologies
- Indian Institute of Science Education and Research Bhopal
- Bhopal
- India-462066
- Department of Earth and Environmental Sciences
| | - Jeyaraman Sankar
- Department of Centre for Research on Environmental and Sustainable Technologies
- Indian Institute of Science Education and Research Bhopal
- Bhopal
- India-462066
- Department of Chemistry
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13
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Kyung D, Lim HK, Kim H, Lee W. CO2 hydrate nucleation kinetics enhanced by an organo-mineral complex formed at the montmorillonite-water interface. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2015; 49:1197-1205. [PMID: 25532462 DOI: 10.1021/es504450x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
In this study, we investigated experimentally and computationally the effect of organo-mineral complexes on the nucleation kinetics of CO2 hydrate. These complexes formed via adsorption of zwitter-ionic glycine (Gly-zw) onto the surface of sodium montmorillonite (Na-MMT). The electrostatic attraction between the −NH3(+) group of Gly-zw, and the negatively charged Na-MMT surface, provides the thermodynamic driving force for the organo-mineral complexation. We suggest that the complexation of Gly-zw on the Na-MMT surface accelerates CO2 hydrate nucleation kinetics by increasing the mineral–water interfacial area (thus increasing the number of effective hydrate-nucleation sites), and also by suppressing the thermal fluctuation of solvated Na(+) (a well-known hydrate formation inhibitor) in the vicinity of the mineral surface by coordinating with the −COO(–) groups of Gly-zw. We further confirmed that the local density of hydrate-forming molecules (i.e., reactants of CO2 and water) at the mineral surface (regardless of the presence of Gly-zw) becomes greater than that of bulk phase. This is expected to promote the hydrate nucleation kinetics at the surface. Our study sheds new light on CO2 hydrate nucleation kinetics in heterogeneous marine environments, and could provide knowledge fundamental to successful CO2 sequestration under seabed sediments.
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Park T, Kyung D, Lee W. Effect of organic matter on CO(2) hydrate phase equilibrium in phyllosilicate suspensions. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2014; 48:6597-6603. [PMID: 24844562 DOI: 10.1021/es405099z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In this study, we examined various CO2 hydrate phase equilibria under diverse, heterogeneous conditions, to provide basic knowledge for successful ocean CO2 sequestration in offshore marine sediments. We investigated the effect of geochemical factors on CO2 hydrate phase equilibrium. The three-phase (liquid-hydrate-vapor) equilibrium of CO2 hydrate in the presence of (i) organic matter (glycine, glucose, and urea), (ii) phyllosilicates [illite, kaolinite, and Na-montmorillonite (Na-MMT)], and (iii) mixtures of them was measured in the ranges of 274.5-277.0 K and 14-22 bar. Organic matter inhibited the phase equilibrium of CO2 hydrate by association with water molecules. The inhibition effect decreased in the order: urea < glycine < glucose. Illite and kaolinite (unexpandable clays) barely affected the CO2 hydrate phase equilibrium, while Na-MMT (expandable clay) affected the phase equilibrium because of its interlayer cations. The CO2 hydrate equilibrium conditions, in the illite and kaolinite suspensions with organic matter, were very similar to those in the aqueous organic matter solutions. However, the equilibrium condition in the Na-MMT suspension with organic matter changed because of reduction of its inhibition effect by intercalated organic matter associated with cations in the Na-MMT interlayer.
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Affiliation(s)
- Taehyung Park
- Department of Civil and Environmental Engineering, Korea Advanced Institute of Science and Technology , 291 Daehak-ro, Yuseong-gu, Daejeon, 305-701, Republic of Korea
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De Graaf RM, Schwartz AW. Thermal synthesis of nucleoside H-phosphonates under mild conditions. ORIGINS LIFE EVOL B 2005; 35:1-10. [PMID: 15889646 DOI: 10.1007/s11084-005-0093-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2003] [Accepted: 08/27/2003] [Indexed: 10/25/2022]
Abstract
Nucleosides react rapidly with ammonium phosphite ((NH4)2HPO3) at 60 degrees C to produce good yields of nucleoside-5'-phosphite monoesters within 24 h. Under the same conditions, ammonium phosphate is unreactive, producing low yields of nucleotide only after extended reactions. These results confirm earlier suggestions that nucleoside H-phosphonates and their possible condensation products may have been produced on the primitive earth more easily than nucleotides.
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Affiliation(s)
- R M De Graaf
- Evolutionary Biology Research Group, Faculty of Science, University of Nijmegen, 6500 GL Nijmegen, The Netherlands
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Park SH, Sposito G. Do Montmorillonite Surfaces Promote Methane Hydrate Formation? Monte Carlo and Molecular Dynamics Simulations. J Phys Chem B 2003. [DOI: 10.1021/jp021427q] [Citation(s) in RCA: 78] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Sung-Ho Park
- Geochemistry Department, Earth Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720
| | - Garrison Sposito
- Geochemistry Department, Earth Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720
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Geology, Mineralogy, and Human Welfare. Proceedings of a colloquium. Irvine, California, USA. November 8-9, 1998. Proc Natl Acad Sci U S A 1999; 96:3348-485. [PMID: 10097042 PMCID: PMC34273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023] Open
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