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Journal articles on the topic 'Biogenic element'

Author: Grafiati

Published: 28 May 2022

Last updated: 30 July 2025

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1

Darlan, Yudi, and Sahudin Sahudin. "GAS BIOGENIK DAN UNSUR MINERAL PADA SEDIMEN DELTA KAPUASKALIMANTAN BARAT." JURNAL GEOLOGI KELAUTAN 10, no. 3 (2016): 133. http://dx.doi.org/10.32693/jgk.10.3.2012.222.

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Gas metan biogenik merupakan gas metan yang terbentuk akibat aktivitas anaerobik. Gas biogenik yang terdapat di daerah penelitian merupakan gas biogenik yang terdapat pada sedimen Kuarter. Sedimen Kuarter yang mengalasi daerah telitian terdiri atas perselingan pasir dan lempung yang mengandung unsur pembentuk mineral dan material organik. Pada sumur bor BH-3 yang mengandung gas biogenik, kandungan bakteri metanogenik sebesar 1,5% dari total bakteri umum, kandungan karbon total sekitar 4%, unsur utama, unsur logam berat, dan unsur tanah jarang (REE) mengalami perubahan yang signifikan. Pada sum

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SOROKOVIKOVA, L. M., V. N. SINYUKOVICH, V. G. IVANOV, et al. "INFLOW OF BIOGENIC ELEMENTS WITH THE BARGUZIN RIVER WATER AND THEIR ROLE IN EUTROPHICATION OF THE BARGUZIN BAY (LAKE BAIKAL)." Meteorologiya i Gidrologiya, no. 2 (February 2022): 75–86. http://dx.doi.org/10.52002/0130-2906-2022-2-75-86.

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The results of multiyear studies of biogenic element concentrations in the Barguzin River mouth and the Barguzin Bay are presented. The key role of the water outflow dynamics in seasonal and interannual changes in concentrations of biogenic elements and organic carbon in the river and their inflow to the bay is confirmed. The spatial distribution of biogenic element concentrations in the bay depends on seasonal hydrological and geophysical conditions and on the activity of phytoplankton development. It is shown that under low-water conditions in the bay, the concentration of mineral compounds

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TOKAREVA, I. V., M. P. PROKUSHKINA, M. A. KORETS, A. V. PANOV, A. G. GEORGIADI, and A. S. PROKUSHKIN. "CHANGES IN CONCENTRATION AND OUTFLOW OF BIOGENIC ELEMENT COMPOUNDS IN THE YENISEI RIVER." Meteorologiya i Gidrologiya, no. 2 (February 2022): 87–96. http://dx.doi.org/10.52002/0130-2906-2022-2-87-96.

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The spatiotemporal variability of concentrations and export of inorganic dissolved biogenic elements (nitrogen and phosphorus) in the Yenisei River runoff is assessed. The analysis of changes in phosphate, nitrate, nitrite, and ammonium concentrations in the river water was carried out from the Krasnoyarsk hydroelectric power station tailwater (56° N) to the outlet near Igarka (68° N). The enrichment of the Yenisei water with biogenic substances exported from the Krasnoyarsk Reservoir was found. Among the largest tributaries, the Angara River has the greatest effect on the concentration of ino

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4

Emelyanov, Emelyan M., Saulius Gulbinskas, and Sergej Suzdalev. "Biogenic components and trace elements in the surface sediments of a semi-enclosed coastal system of the southeastern Baltic." Baltica 28, no. 2 (2015): 151–62. http://dx.doi.org/10.5200/baltica.2015.28.13.

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The main suppliers of sedimentary matter into the large coastal freshwater lagoon of the southeastern Baltic (Curonian Lagoon) are the Neman River including the sleeves Atmata, Skirvytė and Razliv, as well as Matrosovka and Deima rivers. Large catchment area of the rivers densely populated and characterized by intensive industrial and agricultural activities, which are regarded as potential suppliers of biogenic and chemical elements. Elevated amounts of biogenic components (nitrogen and phosphorus) as well as arsenic recorded in sediments from the river mouth areas suggest serious contributio

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Kumar, Vishal, Ashutosh Bahuguna, and Myunghee Kim. "Simultaneous detection and quantification of different biogenic amines." Bangladesh Journal of Pharmacology 17, no. 3 (2022): 67–71. http://dx.doi.org/10.3329/bjp.v17i3.60650.

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Biogenic amines are a group of low molecular weight nitrogenous organic compounds that have an important physiological role in cell proliferation, differentiation, and signal transduction. Also, certain biogenic amines act as an important biomarker for the detection of neuroendocrine and cardiovascular disorders in humans. Besides this, the abundance of biogenic amines in food is recognized as a toxin and anti-nutritional element that have several health implications. This visual experiment demonstrates all the critical steps required for the extraction of biogenic amines followed by derivatiz

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6

Burnett, R. D., and R. L. Austin. "Modification of Conodont element micro-ornamentation by clay-mineral indentation." Journal of Micropalaeontology 9, no. 1 (1990): 15–19. http://dx.doi.org/10.1144/jm.9.1.15.

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Abstract. ‘Sclerites’, described from the surfaces of conodont elements in bedding-plane assemblages by Rhodes and Austin (1985), are shown to be indentations of bladed minerals on the conodont element apatite. Such minerals are seen coating moulds from which conodont elements have been removed, and are identified tentatively as Kaolinite. The recognition of inorganically-produced surface patterns on conodont elements, developed within low thermal régimes, is considered relevant in the light of recent studies of biogenic and metamorphic surface features.

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7

Golubkina, Nadezhda, Sergey Sheshnitsan, and Marina Kapitalchuk. "Ecological Importance of Insects in Selenium Biogenic Cycling." International Journal of Ecology 2014 (2014): 1–6. http://dx.doi.org/10.1155/2014/835636.

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Selenium is an essential trace element for animal and human beings. Despite the importance of insects in most ecosystems and their significant contribution to the biological cycling of trace elements due to high abundance, population productivity, and diverse ecosystem functions, surprisingly little information is available on selenium bioaccumulation by these arthropods. This review considers selenium essentiality and toxicity to insects as well as insects’ contribution to selenium trophic transfer through the food chains. Data on Se accumulation by insects of the Dniester River Valley with n

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Acar, Nazli, José M. Franco, Erik Kuhn, David E. P. Gonçalves, and Jorge H. O. Seabra. "Tribological Investigation on the Friction and Wear Behaviors of Biogenic Lubricating Greases in Steel–Steel Contact." Applied Sciences 10, no. 4 (2020): 1477. http://dx.doi.org/10.3390/app10041477.

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The applications of biogenic lubricating greases to machine elements play important roles in the reduction of friction energy and minimizing wear in a tribological contact, as well as the prevention of environmental pollution. The aim of this work was to investigate completely biogenic lubricating greases from a tribological point of view. Model greases were examined using a ball on a disc tribometer at a constant normal force to investigate the friction and wear process according to Fleischer’s energetic wear model. Using the energy-based wear model, the friction and wear process could be int

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Pandit, Dr Dinesh, R. Sajeev, and Mallickarjun Joshi. "Geochemical Evolution of Dolomites in Thanagazi Formation of Mesoproterozoic Alwar Basin, Northwest India." Journal of The Indian Association of Sedimentologists 39, no. II (2022): 30–46. http://dx.doi.org/10.51710/jias.v39iii.256.

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The geochemistry of dolomite in part of the Thanagazi Formation in the Mesoproterozoic Alwar Basin has been studied employing major and trace elements, including rare earth elements (REEs) to understand their provenance and paleoweathering conditions. In the current study, two distinct types of dolomites were identified viz. amorphous and crystalline. Various geochemical discriminants such as SiO2 vs Al2O3 and CaO vs MgO indicate that the dolomites were originated from sedimentary sources with substantial metasomatic and biogenic contributions. Geochemical constraints from plots of Fe2O3/Al2O3

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10

Rose, Arthur W., Tetsuya Kato, and Michael L. Machesky. "The significance of biogenic element cycling in ancient tropical soils." Chemical Geology 107, no. 3-4 (1993): 401–3. http://dx.doi.org/10.1016/0009-2541(93)90219-9.

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11

Lécuyer, Christophe, Bruno Reynard, and Patricia Grandjean. "Rare earth element evolution of Phanerozoic seawater recorded in biogenic apatites." Chemical Geology 204, no. 1-2 (2004): 63–102. http://dx.doi.org/10.1016/j.chemgeo.2003.11.003.

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12

Škundrić, Tamara, Dejan Zagorac, Aleksandra Zarubica, and Branko Matović. "Theoretical investigation of mollusk shells: Energy landscape exploration of CaCo3 polymorphs and element substitution: A short review." Advanced Technologies 10, no. 1 (2021): 73–80. http://dx.doi.org/10.5937/savteh2101073s.

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Due to the remarkable properties achieved under ambient conditions and with quite limited components, mollusk shells are very appealing natural bio-composites used as inspiration for new advanced materials. Calcium carbonate which is among the most widespread biominerals is used by mollusks as a building material that constitutes 95-99% of their shells. Within the investigation of calcium carbonate polymorphs present in the shells, diverse theoretical and experimental studies were performed, however, further research of these crystalline forms is required. There are very little researches on t

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13

Demina, L. L., Ye A. Novichkova, and N. V. Kozina. "Chemostratigraphy of the Snorry drift in the Northern Atlantic." Океанология 59, no. 3 (2019): 469–75. http://dx.doi.org/10.31857/s0030-1574593469-475.

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On the basis of multi-element chemical analysis and oxygen isotopic data, for the first time the distribution of some geochemical indicators was investigated in the sediment core taken at the Western slope of the Snorry contourite drift (St. AI-3378, North Atlantic) in the 49th cruise of RV "Akademik Ioffe" in 2015. Down the core an asynchronous change in the terrigenous (IRD, Al, Si, Ti, Zr, Cr) and biogenic indicators (CaCO3, Corg) was recorded. Based on multi-element geochemical data, the rhythmic distribution along the core of terrigenous and biogenic sedimentary material has been revealed

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14

Sobolev, O. I., B. V. Gutyj, and S. V. Soboleva. "Selenium in natural environment and food chains. A Review." Ukrainian Journal of Ecology 10, no. 4 (2020): 148–58. http://dx.doi.org/10.15421/2020_182.

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The analytical review attempts to summarize the results of numerous scientific research conducted by scientists around the world on selenium scattering and accumulation in natural environment, with considerable attention paid to the concentration of this trace element in soils, natural waters and plants. It is shown that selenium content in agricultural products is caused by the processes of physico-chemical and biogenic migration of this element in the biogeochemical food chain. According to the modern classification of trace elements, which is based on their biological significance for livin

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15

Contreras Rozo, J. A., F. Severiano Carrillo, V. L. Gayou, H. Martínez Gutierrez, and R. Delgado Macuil. "Optical biosensor for biogenic amines detection used a porous silicon matrix." Suplemento de la Revista Mexicana de Física 1, no. 3 (2020): 49–54. http://dx.doi.org/10.31349/suplrevmexfis.1.3.49.

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The content of biogenic amines has been studied due to the toxicity of these compounds in humans when are consumed exogenously, and is used as an indicator of quality in the food industry. The manly method for its determination is high performance liquid chromatography. However, it requires a long time for analysis. An alternative method is the use of biosensors, porous silicon with gold nanoparticles were obtained by electrochemical attack assisted with metal salt. These substrates were used for the construction of a biosensor capable of detecting BA using diamine oxidase enzyme as an element

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16

Soleimani, Mohammad, Sten J. J. van den Broek, Rick R. M. Joosten, et al. "Investigating the Morphology and Mechanics of Biogenic Hierarchical Materials at and below Micrometer Scale." Nanomaterials 12, no. 9 (2022): 1549. http://dx.doi.org/10.3390/nano12091549.

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Investigating and understanding the intrinsic material properties of biogenic materials, which have evolved over millions of years into admirable structures with difficult to mimic hierarchical levels, holds the potential of replacing trial-and-error-based materials optimization in our efforts to make synthetic materials of similarly advanced complexity and properties. An excellent example is biogenic silica which is found in the exoskeleton of unicellular photosynthetic algae termed diatoms. Because of the complex micro- and nanostructures found in their exoskeleton, determining the intrinsic

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17

Ramakrishnan, Shankar, Kai-Chun Lin, B. L. Ramakrishna, Sandwip Dey, and Michael Goryll. "Finite-Element Simulation and Verification of Nanoparticle Translocation Through Biogenic Diatom Shells." IEEE Sensors Journal 15, no. 7 (2015): 3921–25. http://dx.doi.org/10.1109/jsen.2015.2403233.

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18

Timofeev, V. N., and O. A. Vyushina. "Testing of macro- and micronutrient nanoparticles on grain crops." Siberian Herald of Agricultural Science 52, no. 1 (2022): 37–47. http://dx.doi.org/10.26898/0370-8799-2022-1-4.

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The studies were conducted in the northern forest-steppe of the Tyumen region. Under laboratory and field conditions, different forms and dosages of macro- and micronutrient nanoparticles and associated substances were tested in the treatment of seeds and plants of spring triticale and wheat. The preparations had a positive effect on seed germination, while higher rates reduced energy and germination. The germination energy and germination of triticale seeds increased by 4-10% with the application of preparations containing nanoparticles of copper, manganese, molybdenum, biogenic iron, Titan M

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19

Kruglov, Dmitriy Semenovich, Viktoriya Vladimirovna Velichko, and Marina Yelvardovna Kartaschova. "VARIABILITY OF THE TRACE ELEMENT COMPOSITION OF UNDERGROUND AND ABOVEGROUND SHOOTS OF NONEA ROSSICA STEV." chemistry of plant raw material, no. 4 (December 15, 2023): 269–76. http://dx.doi.org/10.14258/jcprm.20230412575.

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To create phytomedicines for the treatment of dyselementoses with reproducible pharmacological effects, it is necessary to know within what limits the content of microelements can vary in commercial thickets of herbs. The aim this work was to determine variability of the content of microelements in the underground and aboveground organs of Nonea rossica Stev.The above-ground and underground shoots of the plant was collected on the territory of the Novosibirsk region. The content of plant biogenic elements B, K, P, V, Ca, Cu, Fe, Mg, Mn, Mo, Na, Si, Zn, Ni, Co and toxic elements was determined

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20

Krasavtseva, Eugenia, Victoria Maksimova, Marina Slukovskaya, Tatiana Ivanova, Irina Mosendz, and Irina Elizarova. "Accumulation and Translocation of Rare Trace Elements in Plants near the Rare Metal Enterprise in the Subarctic." Toxics 11, no. 11 (2023): 898. http://dx.doi.org/10.3390/toxics11110898.

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Mining activities create disturbed and polluted areas in which revegetation is complicated, especially in northern areas. For the first time, the state of the ecosystems in the impact zone of tailings formed during the processing of rare earth element deposits in the Subarctic have been studied. This work aimed to reveal aspects of accumulation and translocation of trace and biogenic elements in plants (Avenella flexuosa (L.) Drejer, Salix sp., and Betula pubescens Ehrh.) that are predominantly found in primary ecosystems on the tailings of loparite ores processing. The chemical composition of

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21

Chen, Xian, Xiaoming Sun, Zhongwei Wu, Yan Wang, Xiao Lin, and Hongjun Chen. "Mineralogy and Geochemistry of Deep-Sea Sediments from the Ultraslow-Spreading Southwest Indian Ridge: Implications for Hydrothermal Input and Igneous Host Rock." Minerals 11, no. 2 (2021): 138. http://dx.doi.org/10.3390/min11020138.

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Detailed mineralogical and geochemical characteristics of typical surface sediments and hydrothermal deposits collected from the ultraslow-spreading Southwest Indian Ridge (SWIR) were studied by high-resolution XRD, SEM-EDS, XRF, and ICP-MS. The SWIR marine samples can be generally classified into two main categories: surface sediment (biogenic, volcanic) and hydrothermal-derived deposit; moreover, the surface sediment can be further classified into metalliferous and non-metalliferous based on the metalliferous sediment index (MSI). The chemical composition of biogenic sediment (mainly biogeni

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22

Sapaev, B., F. E. Saitkulov, A. Khalikov, and A. S. Ganiev. "The biochemical effects of the coordination compound of cobalt-ii nitrate quinazolin-4-one with 3-indolyl acetic acid in the “amber” plants grades phaseolus aureus." E3S Web of Conferences 452 (2023): 01042. http://dx.doi.org/10.1051/e3sconf/202345201042.

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The biochemical effects of the coordination compound of cobalt-II nitrate quinazolin-4-one with 3-indolyl acetic acid in the “amber” plants grades Phaseolus aureus have been studied. Cobalt is an important trace element for plants and an important biogenic element in the soil, mainly in the form of the Co2+ cation, which participates in redox reactions in plant organisms for the implementation of various mineral and organic compounds. Cobalt compounds are mainly soluble in mineral acids, so we want to show that the coordination compound containing this trace element, formed by the nitrate salt

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23

Boncheva, Iliana, Polina Andreeva, and Valeri Sachanski. "Geochemistry and depositional settings of Paleozoic cherts from Western Bulgaria: preliminary results." Review of the Bulgarian Geological Society 83, no. 3 (2022): 141–44. http://dx.doi.org/10.52215/rev.bgs.2022.83.3.141.

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Paleozoic (Silurian and Devonian) cherts from Western Bulgaria occur in three tectonic units: Svoge, Lyubash-Golo Bardo and Morava. The SiO2 content in these rocks varies from 76.06% to 96.02%. The silica source and depositional settings of the cherts have been interpreted based on the received geochemical major element data. The calculated Si/(Si+Fe+Al+Ca) ratio and Al–Fe–Mn diagram plotting at non-hydrothermal field suggest that most of silica in the cherts is biogenic or both biogenic and terrigenous in origin. On the other hand, all studied siliceous samples plot into the field of the cont

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Lagarde, Marion, Nolwenn Lemaitre, Hélène Planquette, et al. "Particulate rare earth element behavior in the North Atlantic (GEOVIDE cruise)." Biogeosciences 17, no. 22 (2020): 5539–61. http://dx.doi.org/10.5194/bg-17-5539-2020.

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Abstract. Particulate concentrations of the 14 Rare Earth Elements (PREE), yttrium, and 232-thorium were measured in 200 samples collected in the epipelagic (ca. 0–200 m) and mesopelagic (ca. 200–1500 m) zones of the North Atlantic during the GEOVIDE cruise (May/June 2014, R/V Pourquoi Pas?, GEOTRACES GA01), providing the most detailed snapshot of the PREE distribution in the North Atlantic so far. Concentrations of particulate cerium (PCe) varied between 0.2 and 16 pmol L−1, while particulate neodymium (PNd) concentrations ranged between 0.1 and 6.1 pmol L−1. Particulate ytterbium (PYb) conce

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Rex, M., I. Wohltmann, T. Ridder, et al. "A Tropical West Pacific OH minimum and implications for stratospheric composition." Atmospheric Chemistry and Physics Discussions 13, no. 11 (2013): 28869–93. http://dx.doi.org/10.5194/acpd-13-28869-2013.

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Abstract. Hundreds of biogenic and anthropogenic chemical species are emitted into the atmosphere. Most break down efficiently by reaction with OH and do not reach the stratosphere. Here we show the existence of pronounced minima in the tropospheric columns of ozone and OH over the West Pacific, the main source region for stratospheric air. We show that this amplifies the impact of surface emissions on the stratospheric composition. Specifically, emissions of biogenic halogenated species from natural sources and from kelp and seaweed farming can have a larger effect on stratospheric ozone depl

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Saitkulov, Foziljon Ergashevich Begimqulov Inomjon Bahrom o'g'li Oʻralova Nodira Abdulaziz qizi Gulimmatova Ruhsora Axmadjon qizi Rahmonqulova Dilfuza Asrorjon qizi. "BIOCHEMICAL EFFECTS OF THE COORDINATION COMPOUND OF COBALT-II NITRATE QUINAZOLIN-4-ONE WITH 3-INDOLYL ACETIC ACID IN THE "AMBER" PLANTS GRADES PHASEOLUS AUREUS." ACADEMIC RESEARCH IN MODERN SCIENCE 1, no. 17 (2022): 263–67. https://doi.org/10.5281/zenodo.7332745.

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The biochemical effects of the coordination compound of cobalt-II nitrate quinazolin-4-one with 3-indolyl acetic acid in the “amber” plants grades Phaseolus aureus have been studied. Cobalt is an important trace element for plants and an important biogenic element in the soil, mainly in the form of the Co<sup>2+ </sup>cation, which participates in redox reactions in plant organisms for the implementation of various mineral and organic compounds. Cobalt compounds are mainly soluble in mineral acids, so we want to show that the coordination compound containing this trace element, for

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27

Li, Gang, Hong Zhi Song, Jun Wang, and Fu An Wu. "Repetitive-Element PCR Technology for Identification of Mulberry Pathogens." Advanced Materials Research 989-994 (July 2014): 1025–28. http://dx.doi.org/10.4028/www.scientific.net/amr.989-994.1025.

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The coronatine is a new-type and high-efficient biogenic chlorosis-inducing phytotoxin. It’s also a new potential chemical regulator. Plants can get higher stress and disease resistance with spraying coronatine at a low concentration, which has broad application prospects. It’s an effective way to ferment coronatine industrially using Pseudomonas syringae. The REP universal primers were used to establish the repetitive sequence PCR technology. Clustering analysis and classification were used to screen the wild strains producing coronatine from Jiangsu and Zhejiang area. The results showed that

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Lobus, Nikolay V., Maxim S. Kulikovskiy, and Yevhen I. Maltsev. "Multi-Element Composition of Diatom Chaetoceros spp. from Natural Phytoplankton Assemblages of the Russian Arctic Seas." Biology 10, no. 10 (2021): 1009. http://dx.doi.org/10.3390/biology10101009.

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Data on the elemental composition of the diatom Chaetoceros spp. from natural phytoplankton communities of Arctic marine ecosystems are presented for the first time. Samples were collected during the 69th cruise (22 August–26 September 2017) of the R/V Akademik Mstislav Keldysh in the Kara, Laptev, and East Siberian Seas. The multi-element composition of the diatom microalgae was studied by ICP-AES and ICP-MS methods. The contents of major (Na, Mg, Al, Si, P, S, K and Ca), trace (Li, Be, B, Ti, V, Cr, Mn, Co, Ni, Cu, Zn, Ga, As, Se, Rb, Sr, Mo, Ag, Cd, Sn, Sb, Cs, Ba, Hg, Tl, Pb, Bi, Th and U)

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Berdnikov, О. М., V. V. Volkohon, L. V. Potapenko, and S. F. Kozar. "AGROCHEMICAL EVALUATION OF THE EFFICACY OF BIOPREPARATIONS IN A HIGHLY CROP ROTATION." Agriciltural microbiology 31 (July 7, 2020): 44–50. http://dx.doi.org/10.35868/1997-3004.31.44-50.

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Objective. Determine the parameters of uptake of organic matter and biogenic elements withby-products of crops under the use of mineral and green-manure-mineral fertilization systems andmicrobial preparations. Methods. Field experiment, agrochemical, balance, statistical. Results.Under the conditions of short crop rotation “winter wheat – intermediate green manure – corn forgrain – soybean – winter wheat”, the influence of microbial preparations Biogran (on the basis ofnitrogen-fixing bacterium Azospirillum brasilense 410 and physiologically active substances) forcorn and Nitro-Legu (on the ba

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Saitkulov, Foziljon Ergashevich Elmuradov Burkhon Zhuraevich O'lmasova Komilakhon Mo'minjon qizi Alijonova Asalxon Odiljon qizi. "PREPARATION OF A MIXED COORDINATION COMPOUND COBALT-II NITRATE HEXAHYDRATE WITH QUINAZOLINE-4-ONE AND 3-INDOLYLACETIC ACID ON "AMBER" PLANTS OF THE PHASEOLUS AUREUS VARIETY." SCIENCE AND INNOVATION IN THE EDUCATION SYSTEM 2, no. 1 (2023): 81–87. https://doi.org/10.5281/zenodo.7536612.

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<em>The biochemical effects of the coordination compound of cobalt-II nitrate quinazolin-4-one with </em><em>3-indolyl acetic acid </em><em>in the “amber” </em><em>plants </em><em>grades Phaseolus aureus have been studied. Cobalt is an important trace element for plants and an important biogenic element in the soil, mainly in the form of the Co<sup>2+</sup> cation, which participates in redox reactions in plant organisms for the implementation of various mineral and organic compounds. Cobalt compounds are mainly soluble in mineral acids, so we want to show that the coordination com

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Satimov, Farrux. "BIOREGULATION OF SODIUM IN THE HUMAN BODY CHARACTERISTICS, ITS TOXIC-PHARMACOLOGICAL EFFECT. IMPORTANCE OF THE CONNECTIONS USED IN MEDICINE." MODERN SCIENCE AND RESEARCH 3, no. 3 (2024): 957–60. https://doi.org/10.5281/zenodo.10895088.

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<em>In this article, the biogenic element sodium, important for the human body, carries out bioregulation in the body, its participation in metabolism in cells and tissues, its effect on increasing the cellular buffer through redox processes, the synthesis of chlorine salt with HCl, hydrochloric acid of gastric juice and acid - information is given on the importance of maintaining the basic balance of physiological solutions used in medicine.</em>

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Jochum, Klaus Peter, Denis Scholz, Brigitte Stoll, et al. "Accurate trace element analysis of speleothems and biogenic calcium carbonates by LA-ICP-MS." Chemical Geology 318-319 (July 2012): 31–44. http://dx.doi.org/10.1016/j.chemgeo.2012.05.009.

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Haywick, Douglas W., and Michael G. Bersch. "Application of Electron Microprobe Scanning Techniques to Resolve Trace Element Variations in Biogenic Aragonite." Microscopy and Microanalysis 5, S2 (1999): 532–33. http://dx.doi.org/10.1017/s1431927600015981.

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Aragonite (CaCO3) is one of the principal carbonate minerals utilized by metazoans to form shells, tests and other skeletal elements. It may also be inorganically precipitated under certain geological conditions. Aragonite is unstable in meteoric diagenetic environments (relative to its polymorph calcite), and is prone to dissolution and/or replacement by other minerals (usually calcite). The mobilization of Ca2+ and CO32− during aragonite alteration is largely responsible for early diagenetic cementation and the formation of limestone from unconsolidated carbonate sediment. Our study has been

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Wallmann, K., G. Aloisi, M. Haeckel, et al. "Silicate weathering in anoxic marine sediments." Mineralogical Magazine 72, no. 1 (2008): 363–66. http://dx.doi.org/10.1180/minmag.2008.072.1.363.

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Two sediment cores retrieved at the northern slope of Sakhalin Island, Sea of Okhotsk, were analysed for biogenic opal, organic carbon, carbonate, sulphur, major element concentrations, mineral contents and dissolved substances including nutrients, sulphate, methane, major cations, humic substances and total alkalinity. Down-core trends in mineral abundance suggest that plagioclase feldspars and other reactive silicate phases (olivine, pyroxene, volcanic ash) are transformed into smectite in the methanogenic sediment sections. The element ratios Na/Al, Mg/Al and Ca/Al in the solid phase decrea

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Zambonino, Marjorie C., Ernesto Mateo Quizhpe, Lynda Mouheb, Ashiqur Rahman, Spiros N. Agathos, and Si Amar Dahoumane. "Biogenic Selenium Nanoparticles in Biomedical Sciences: Properties, Current Trends, Novel Opportunities and Emerging Challenges in Theranostic Nanomedicine." Nanomaterials 13, no. 3 (2023): 424. http://dx.doi.org/10.3390/nano13030424.

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Selenium is an important dietary supplement and an essential trace element incorporated into selenoproteins with growth-modulating properties and cytotoxic mechanisms of action. However, different compounds of selenium usually possess a narrow nutritional or therapeutic window with a low degree of absorption and delicate safety margins, depending on the dose and the chemical form in which they are provided to the organism. Hence, selenium nanoparticles (SeNPs) are emerging as a novel therapeutic and diagnostic platform with decreased toxicity and the capacity to enhance the biological properti

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Debora, F. Bubach. "Lichen as biomonitor of atmospheric elemental composition from Potter Peninsula, 25 de Mayo (King George) Island, Antarctica." Annals of Marine Science 2, no. 1 (2019): 009–15. https://doi.org/10.5281/zenodo.3234611.

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Lichens are powerful biomonitor of airborne pollution around point sources or long range transport because they are perennial allowing bioindication at long period. The element concentrations in foliose and fruticose lichen species from Potter Peninsula located in 25 de Mayo (King George) Island is reported. The coefficient of the variation for most of the elements was up to 50% except for as and Br, K and Se. The Principal Component Analysis showed differences among sampling sites according to human activities respect to the special protected areas. Aluminium, Cr, Hg, Pb and Se concentrations

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Liang, Yutao, Jinchuan Zhang, Yang Liu, et al. "Evidence for Biogenic Silica Occurrence in the Lower Silurian Longmaxi Shale in Southeastern Chongqing, China." Minerals 10, no. 11 (2020): 945. http://dx.doi.org/10.3390/min10110945.

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The gas shale in the Lower Silurian Longmaxi Formation contains a considerable amount of biogenic silica. Various originated silicas in shale, derived from different depositional environment, are commonly associated with different degrees of organic matter enrichment, resulting in different mechanical and physical properties of shale reservoirs. Thin section identification, scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), total organic carbon (TOC) analysis, X-ray diffraction (XRD) analysis, and X-ray fluorescence (XRF) spectroscopy were used to investigate the Lower S

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Qamar, N., and P. John. "Biogenic selenium nanoparticles: their dual impact on spleen and growth in arthritic mice." Journal of Optoelectronic and Biomedical Materials 16, no. 1 (2024): 47–54. http://dx.doi.org/10.15251/jobm.2024.161.47.

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Selenium is known to be an important element for growth and splenic microenvironment regulation. About 5–10% of RA patients presented enlarged spleen along with low levels of selenium than the normal individuals. The current study aims to determine the effects of biogenic selenium nanoparticles (SeNPs) on the growth and spleen of healthy and arthritic mice. Biogenic SeNPs were evaluated for their adverse as well as therapeutic effects on the growth rate and splenic integrity of healthy and arthritic Balb/c mice. The tested doses of SeNPs significantly reduced the growth of mice along with sple

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Waligórski, Błażej, and Ewelina Janicka. "The Influence of the Przebędowo Reservoir on the Water Quality of the Trojanka River in the First Years of its Functioning." Rocznik Ochrona Środowiska 23 (2021): 151–67. http://dx.doi.org/10.54740/ros.2021.010.

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Agriculture, mainly biogenic compounds (nitrogen and phosphorus) and plant protection products are one of the sources of environmental pollution. The sources of pollution are both farm buildings and intensively used agricultural land. Therefore, a crucial element of the environment contributing to the improvement of surface water quality are the aforementioned shallow reservoirs covered by vegetation that act as biofiltres or reservoirs such as dammed reservoirs. The analysed reservoir is located in the Greater Poland Province, about 25 km to the north from Poznań, in Murowana Goślina commune.

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Maldonado, Maria T., Szymon Surma, and Evgeny A. Pakhomov. "Southern Ocean biological iron cycling in the pre-whaling and present ecosystems." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 374, no. 2081 (2016): 20150292. http://dx.doi.org/10.1098/rsta.2015.0292.

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This study aimed to create the first model of biological iron (Fe) cycling in the Southern Ocean food web. Two biomass mass-balanced Ecopath models were built to represent pre- and post-whaling ecosystem states (1900 and 2008). Functional group biomasses (tonnes wet weight km −2 ) were converted to biogenic Fe pools (kg Fe km −2 ) using published Fe content ranges. In both models, biogenic Fe pools and consumption in the pelagic Southern Ocean were highest for plankton and small nektonic groups. The production of plankton biomass, particularly unicellular groups, accounted for the highest annu

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Reimann, Clemens, Arnold Arnoldussen, Peter Englmaier, et al. "Element concentrations and variations along a 120-km transect in southern Norway – Anthropogenic vs. geogenic vs. biogenic element sources and cycles." Applied Geochemistry 22, no. 4 (2007): 851–71. http://dx.doi.org/10.1016/j.apgeochem.2006.12.019.

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Dotsenko, Irina V., and Anna V. Mikhailenko. "Phytoplankton and Its Role in Accumulation of Microelements in Bottom Deposits of Azov Sea." Scientific World Journal 2019 (March 12, 2019): 1–7. http://dx.doi.org/10.1155/2019/8456371.

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The importance of phytoplankton is high in transformation of substances in aquatic ecosystems and in formation of suspension’s material structure. Its main functions are consumption of the dissolved biogenic components and chemical elements and their conversion to a firm phase. The article is devoted to the bioaccumulation of microelements by phytoplankton in the ecosystem of the Azov Sea. The fact that the algal biomass during the periods of blooming in the sea reaches 1,400 g/l makes this study especially urgent. The authors define the rates of biogeochemical cycle and the intensity of chemi

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Castro, Laura, Lesly Antonieta Ayala, Arevik Vardanyan, Ruiyong Zhang, and Jesús Ángel Muñoz. "Arsenate and Arsenite Sorption Using Biogenic Iron Compounds: Treatment of Real Polluted Waters in Batch and Continuous Systems." Metals 11, no. 10 (2021): 1608. http://dx.doi.org/10.3390/met11101608.

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Arsenic pollution in waters is due to natural and anthropogenic sources. Human exposure to arsenic is associated with acute health problems in areas with high concentrations of this element. Nanometric iron compounds with large specific surface areas and higher binding energy produced by some anaerobic microorganisms are thus expected to be more efficient adsorbents for the removal of harmful metals and metalloids than chemically produced iron oxides. In this study, a natural consortium from an abandoned mine site containing mainly Clostridium species was used to biosynthesize solid Fe(II) com

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Enengel, Maximilian Julius, Tatjana Lasch, Lisa Kandlbauer, Sandra Antonia Viczek, Roland Pomberger, and Renato Sarc. "Particle Size Distribution of Materials and Chemical Element Composition in Mixed Commercial Waste." Waste 3, no. 1 (2025): 9. https://doi.org/10.3390/waste3010009.

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In processing mixed commercial waste (MCW), particle size distribution is as critical as material composition. Detailed knowledge of particle size distribution unlocks the recycling potential of specific material groups and facilitates the efficient conversion of these materials into secondary fuels. Additionally, understanding particle size-dependent element distribution in waste is crucial, particularly given potential legal limits on several heavy metals. While two studies carried out in 2019 have addressed these issues, the inherent variability in MCW composition necessitates further inves

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Gandia, David, Lucía Gandarias, Lourdes Marcano, et al. "Elucidating the role of shape anisotropy in faceted magnetic nanoparticles using biogenic magnetosomes as a model." Nanoscale 12, no. 30 (2020): 16081–90. http://dx.doi.org/10.1039/d0nr02189j.

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Ovchinnikov, A. A., L. Yu Ovchinnikova, Yu V. Matrosova, D. S. Bryukhanov, and E. A. Babich. "Biochemical status of the sow body with the use of vitamin and mineral supplement in the diet." E3S Web of Conferences 222 (2020): 02057. http://dx.doi.org/10.1051/e3sconf/202022202057.

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The diet of monogastric animals should be adjusted for vitamin and mineral nutrition during the period of growing and economic use. They affect all types of metabolism, especially in the last third of gestation of sows and the development of young pigs in the postnatal period. For sows throughout the period of gestation and suckling, it is important to include in the diet such biogenic element as folic acid, as well as a set of essential trace elements (copper, zinc, cobalt, manganese) and group B vitamins, the use of which during the entire production cycle helped to improve prolificacy of so

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Swanston, Treena, Tamara Varney, Ian Coulthard, et al. "Element localization in archaeological bone using synchrotron radiation X-ray fluorescence: identification of biogenic uptake." Journal of Archaeological Science 39, no. 7 (2012): 2409–13. http://dx.doi.org/10.1016/j.jas.2012.01.041.

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Uhlig, David, Jan A. Schuessler, Julien Bouchez, Jean L. Dixon, and Friedhelm von Blanckenburg. "Quantifying nutrient uptake as driver of rock weathering in forest ecosystems by magnesium stable isotopes." Biogeosciences 14, no. 12 (2017): 3111–28. http://dx.doi.org/10.5194/bg-14-3111-2017.

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Abstract. Plants and soil microbiota play an active role in rock weathering and potentially couple weathering at depth with erosion at the soil surface. The nature of this coupling is still unresolved because we lacked means to quantify the passage of chemical elements from rock through higher plants. In a temperate forested landscape characterised by relatively fast (∼ 220 t km−2 yr−1) denudation and a kinetically limited weathering regime of the Southern Sierra Critical Zone Observatory (SSCZO), California, we measured magnesium (Mg) stable isotopes that are sensitive indicators of Mg utilis

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Ogura, Miki, Mamoru Kato, Naru Arai, Takeshi Sasada, and Yo Sakaki. "Magnetic particles in chum salmon (Oncorhynchus keta): extraction and transmission electron microscopy." Canadian Journal of Zoology 70, no. 5 (1992): 874–77. http://dx.doi.org/10.1139/z92-124.

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Magnetic material was extracted from the head and an area covering the lateral line of chum salmon. Although magnetic material was distributed widely in the head, it was more often extracted from the posterior part of the skull. The material was black in coloration. Crystalline particles were observed with a transmission electron microscope. These particles were covered by a thin film and ranged in diameter from 15 to 196 nm. The major element of these particles was iron, and we conclude that they are biogenic magnetite.

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Tréguer, Paul J., Jill N. Sutton, Mark Brzezinski, et al. "Reviews and syntheses: The biogeochemical cycle of silicon in the modern ocean." Biogeosciences 18, no. 4 (2021): 1269–89. http://dx.doi.org/10.5194/bg-18-1269-2021.

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Abstract. The element silicon (Si) is required for the growth of silicified organisms in marine environments, such as diatoms. These organisms consume vast amounts of Si together with N, P, and C, connecting the biogeochemical cycles of these elements. Thus, understanding the Si cycle in the ocean is critical for understanding wider issues such as carbon sequestration by the ocean's biological pump. In this review, we show that recent advances in process studies indicate that total Si inputs and outputs, to and from the world ocean, are 57 % and 37 % higher, respectively, than previous estimat

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