Silicic acid
Biological and therapeutic effects of ortho-silicic acid and some ortho-silicic acid-releasing compounds: New perspectives for therapy
... ortho-silicic acid in animals has shown to reduce aluminium uptake from the digestive tract and slow down the accumulation of this metal in the brain tissue ...[36,72]. Silicic acid has also ...
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Temporal controls on silicic acid utilisation along the West Antarctic Peninsula
... The impact of climatic change along the Antarctica Peninsula has been widely debated in light of atmospheric/oceanic warming and increases in glacial melt over the past half century. Particular concern exists over the ...
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Effect of silicic acid and other silicon compounds on fungal growth in oligotrophic and nutrient-rich media
... of silicic acid ...containing silicic acid, but in none of the control plates containing only ...of silicic acid could clearly be seen attached to the surface of ...solubilized ...
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Arginine kinase in the demosponge Suberites domuncula: regulation of its expression and catalytic activity by silicic acid
... –1 silicic acid (ambient concentration, present in the natural seawater) or in seawater adjusted to a silicic acid concentration of 60· µ mol·l –1 (Krasko et ...
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YIELD AND WATER PRODUCTION FUNCTIONS OF WHEAT (Triticum aestivum L.) CULTIVARS AND RESPONSE TO EXOGENOUS APPLICATION OF THIOUREA AND ORTHO-SILICIC ACID
... Supplemental irrigation, drought tolerant cultivars and use of plant bioregulators are now being proposed as the key strategy to unlock the yield potential and stabilize the yield of wheat grown in rainfed areas. ...
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Study on morphology of silicic acid polymerization process in different systems
... Fig. 3-10 shows that the silica scale particle is fine crushing with a variety of shapes when the silica scale is enlarged 500 times, the surface active agent ORS-41 makes scaling molecular surface properties close to ...
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Double Acid Base Extraction of Silicic Acid from Quartz Sand
... Silica is becoming more attractive as plant nutrient for non-graminae crops particularly in relation with drought-stress tolerant. Many efforts have been conducted to obtain an efficient technique to produce silica ...
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Interactions of Monomeric Silicic Acid with Copper and Zinc and Chemical Changes of the Precipitates with Aging
... The objectives of this work were to more clearly define the extent to which Si(OH) 4 reacts with Cu and Zn in dilute solutions under conditions of temperature, pressure, and concentratio[r] ...
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Chitin in Diatoms and Its Association with the Cell Wall
... short-term silicic acid starvation and during short-term limitation by silicic acid or iron, two nutrient conditions connected in the environment and known to affect the cell ...long-term ...
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Arylsulfatase B of human lung Isolation, characterization, and interaction with slow reacting substance of anaphylaxis
... The effect of SRS-A upon arylsulfatase hydrolysis of pNCS was assessed by adding varying amounts of SRS-A of rat origin, purified through silicic acid, to 2.0-ml reaction mixtures contai[r] ...
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A COMPARISON OF VOLATILE COMPOUNDS IN DIFFERENT GENOTYPES OF SESAMUM INDICUM L BY GC MS
... thylethyl)phenoxy]-; silicic acid, diethyl bis (trimethylsilyl)ester; stearic acid; oleic acid; n- Hexadecanoic acid; myristic acid; indole-2-one 2,3-dihydro-N- ...
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Taste and mouthfeel assessment of porous and non porous silicon microparticles
... cant silicic acid release still occurs after 600°C oxidation, even in the absence of mastication forces, but over many days of storage in simulated body ...
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Role of biofertilizers in agriculture- a review
... Silicon is present in very large quantities in the soil as silicates and silicon dioxide, but the actual concentration of bio- available ortho-silicic acid is very less. Silicate Solubilizing Bacteria (SSB) ...
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A multi-scale model for the templated synthesis of mesoporous silica : the essential role of silica oligomers
... A first step in this direction has already been taken, where we proposed a new model for silicic acid monomers 34 within the MARTINI coarse-grained approach35,36 that was benchmarked agai[r] ...
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Silica cycling in the ultra-oligotrophic eastern Mediterranean Sea
... of silicic acid from the offshore sediments into the water column was estimated as 57 × 10 9 mol Si yr −1 ...this silicic acid is formed dominantly by the diagenetic alteration of alumi- ...
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An ethanol/ether soluble apoprotein from rat lung surfactant augments liposome uptake by isolated granular pneumocytes
... Ethanol/ether soluble apoproteins, comprising 17% of the total recovered surfactant- associated proteins, were isolated from rat lung surfactant and purified by silicic acid chromatography. The protein that ...
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Evidence for a Regulatory Role of Diatom Silicon Transporters in Cellular Silicon Responses
... in silicic acid uptake only at environmentally relevant extracellular Si concentrations, consistent with previous kinetic measurements (10), and this has now been substantiated in terms of the regulation of ...
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The silicon cycle impacted by past ice sheets
... There is additional uncertainty in interpretation of palaeo-records as downcore biogenic opal isotopic composition are likely to be a complex mixture of changes in silicic acid utilisati[r] ...
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EXTRACTION OF ACTIVE SILICON FROM THE IRON SLAG OF KAKCHING, MANIPUR TO UTILISE AS FERTILISER
... ortho-silicic acid 2 g and dissolved in distilled water 500 mL, stirred the ...ortho-silicic acid 500 µL and diluted to 10 ...ortho-silicic acid, and original iron slag and steel ...
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PISCES-v2: an ocean biogeochemical model for carbon and ecosystem studies
... Some of the main deficiencies of the model are the spatial distribution of the oxygen minimum zones, the silicic acid distribution in the Southern Ocean, too elevated nutrients concentra[r] ...
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