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Showing 1 to 20 of 46 for “"chelating agents"”.
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Prediction of Physicochemical Properties For Fe3+ Chelating Agents
Iron is vital for all living creatures but becomes toxic when it exceeds the levels catered for by their natural cellular buffering mechanisms, causing free radical formation via the Fenton reaction and ultimately, therefore, leading to oxidative stress. In such situations, for example in …
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Influence of Chelating Agents on Proteolysis of Micellar Casein Slurries
<p>ABSTRACT</p> <p>Influence of chelating agents on proteolysis</p> <p>of micellar casein slurries</p> <p>Azucena Becerril Díez</p> <p>The focus of this research was to analyze the effect of Ca chelators on the proteolytic activity of rennet during ripening of a micellar casein slurry. This …
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Effects of Chelating Agents on Texture of Lowfat Cheddar Cheese
<p>Effects of two types of chelating agents on proteolysis and texture properties of low fat Cheddar cheese (LFC) were analyzed and compared to full fat Cheddar (FFC) control during ripening for 120 days at 8°C. We hypothesized that chelating agents would bind calcium ions from cheese matrix to …
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Design, synthesis and characterization of new iron and aluminium chelating agents
… chelators for clinical applications, either as chelating therapeutics able to target specific metal ions in the body, or as metal-carriers for therapeutic or imaging purposes, is a topical research area which faces up to urgent medical problems. Metal-chelating drugs are used in many ways for …
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Investigation of the solution chemistry and dermal absorption of novel copper (II) chelating agents that can serve as potential anti-inflammatory drugs
This study describes the investigation of the solution chemistry of the copper (II) complexes of homopiperazine and an adamentane derivative of homopiperazine (PCU.homo) using glass electrode potentiometry, UV/VIS spectroscopy, speciation modeling, nuclear magnetic resonance spectroscopy, blood …
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Effect of Synthetic Chelating Agent Application to Soils on Phosphorus Availability
… (Fe) and aluminum (Al) amorphous oxides. Organic chelating agents form strong bonds with metals in soil and may reduce P binding with Fe and Al. Ethylenediamine tetraacetic acid (EDTA), hydroxyethyl ethylenediamine triacetic acid (HEEDTA), gluconic acid (GA), and citric acid (CA) were tested to …
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Removal of trace elements from coal using a multiple-property processing circuit
… cleaning are ideal candidates for removal by chelating agents. The purpose of this study was to determine whether trace elements can be effectively separated from coal using the circuit followed by chelating agents. Thirteen of the sixteen trace elements examined in this study were reduced …
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Non-fluorine precursor solutions for high critical current density REBa₂Cu₃O₇₋x̳ films
… cellulose / HEC), nitrates of Y, Ba, and Cu, and chelating agents (polyethylene glycol / PEG and sucrose). The total organic content was ~12 wt% of the entire solution, and the total cation concentration was ~0.7 M. The rheology modifying polymer determined the thickness of the deposited films. …
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Prevention of Iron-Polyphenol Complex Formation in Iron Fortified Tea
… predicted inhibitors, specifically reducing and chelating agents. Reducing agents were able to hinder iron complex formation at pH 5 (the pH of brewed tea) but not at pH 7 (an approximation of the small intestineâ s pH). Chelating agents were successful at preventing iron-polyphenol complex …
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THE SYNTHESIS AND CHELATION OF SOME AZOPYRIMIDINES
… The toxicity to enzymes and fungi of metal chelating agents has been postulated to be due to the removal of essential metals (2,3,4)0 and certain metal chelate them-selves have been shown to be active pharmacologicaily Re-moval of inorganic metallic carcinogens could" thus be possible …
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Systematic Studies on the Chelating Ligand Effects of Novel Borafluoronium Ions
… using bidentate amine and phosphine bases as chelating agents to cationic boronium ions.The borafluoronium complexes A–C were synthesized in high yields (80%–95%) and characterized using NMR spectroscopy and single crystal X-ray diffraction. Further investigations into the coordination of …
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The photophysics properties of lanthanide luminescent probes
… (TRFA). Bi-cs124 was conbined with different chelating agents, specifically diethylene triamine pentaacetic acid (DTPA), ethylene diamine tetraacetic acid (EDTA), ethylene glycol tetraacetic acid (EGTA), and 3,6,9,12-Tetrakis carboxymethyl)-3,6,9,12-tetraazatetradecane-1,14-dioic acid (TTHA). …
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A comparison of extraction techniques for the determination of metals in soil
… resolution to this problem may lie in the use of chelating agents, where the adsorbed metals can be removed from the sediments without disrupting the geological matrix. This would allow the surface bound metal contaminants to be differentiated from the geological metals which are a natural part of …
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Copper and rheumatoid arthritis - an in vitro study of metal-protein interactions
… and atomic absorption. Binding studies of chelating agents as well as several pharmaceuticals in human blood serum were carried out and compared with computer modelling studies.
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Organic fouling in membrane capacitive deionization systems
… the reversibility of fouling, pH adjustment, chelating agents, and hydraulic cleaning were applied to the membranes. Cleaning with pH adjustment reduced the system pressure, but still showed declines in system performance, even with cleaning cycles every 20 hours for 80 hours of operation. …
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Evaluation and Development of Metal-Binding Agents that Alter Copper Bioavailability
… of metal ions by using synthetic metal-binding agents targeted specifically for diseases where misappropriated metal ions are suspected of exacerbating cellular damage. In Chapter 1, we discuss chemical properties that influence the pharmacological outcome of a subset of metal-binding agents …
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Function and Regulation of the Cell Fate Determinant Numb in Polarized Epithelial Cells
… cell-cell contacts when treated with calcium chelating agents. Loss of Numb potentiates hepatocyte growth factor (HGF)-induced lamellipodia formation and cell dispersal – early steps in epithelial-mesenchymal transition (EMT). In Numb-depleted cells, Rac1-GTP loading is enhanced, which …
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