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Showing 1 to 20 of 370 for “"metal ion"”.
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Cellular metal ion sensing using DNAzymes
"Metal ions are important elements in biology and are involved in numerous reactions essential for maintaining life on earth. Most commonly, metal ions confer their role as structural elements or catalytic cofactors within metalloproteins. Metalloproteins comprise more than half of all known …
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Studies of Polynuclear Transition-Metal Ion Complexes
Made available in DSpace on 2014-12-10T23:01:54Z (GMT). No. of bitstreams: 1 7500299.pdf: 3666607 bytes, checksum: 25375e268a45b108fbcbcd10df194fa0 (MD5) Previous issue date: 1974
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Selective metal ion-capturing by striped nanoparticles
Nanomaterials have attracted lots of attention due to their tremendous potential in extensive fields, ranging from biology, physics, and chemistry to electronics, and also already proven their superior functionality to conventional materials. The unique properties of nanomaterials comes from their …
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Metal ion removal by adsorptive bubble separation methods
… affect the removal of mercury(II) from solution, using a dissolved-air flotation technique. Initially, removal of mercury(II) was achieved from aqueous solution using a laboratory-scale apparatus and optimum removal using various coagulating agents was investigated. The mercury(II) …
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Transition metal ion coordination in hydrophilic polymer membranes
… this thesis is concerned with the investigation of transition metal ion complexation within hydrophilic copolymer membranes. The membranes are copolymers of 4-methyl-4'-vinyl-2,2'-bipyridine, the 2-hydroxyethyl ester of 4,4'- dicarboxy-2,2'-bipyridine & …
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Investigations and Applications of Metal Ion Enhanced Chemiluminescence
… detector for amino acids based on the suppression of the Co(II) enhanced luminol reaction is presented in this work. Compared to the classical ninhydrin reaction, this method is faster, can be run at room temperature without thermostatting, can determine secondary amino acids without varying …
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Metal Ion Substitution in the Sodium Niobate Lattice
Made available in DSpace on 2014-12-05T22:57:02Z (GMT). No. of bitstreams: 1 6000150.pdf: 2151119 bytes, checksum: b344e37b425607604321b3ae9d015e2e (MD5) Previous issue date: 1959
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Engineering gelation in metal ion cross-linked hydrogels
… properties of aquatic mussel threads, reversible metal ion cross-links have been utilized to engineer the toughness, stress relaxation, and healing ability of polymer hydrogel networks. Such transient network hydrogels are easily made by reversibly cross-linking a growing variety of polymers …
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In vitro selection of monovalent metal ion-dependent DNAzymes
… of as only the purveyor of genetic information, but also as a highly programmable and functional biopolymer. It was discovered in 1994 that some single-stranded DNA sequences can fold into complex tertiary structures to catalyze reactions, these DNA sequences are called DNAzymes, or DNA …
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Metal ion equilibria in biofluids - copper and rheumatoid arthritis
… weight copper pool in vivo. The justification for using this speciation approach is based on the assumption that the low molecular weight copper complexes are important in the reduction of the inflammation associated with rheumatoid arthritis. Based on the results of the simulation, two …
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Structural variations in metal ion complexes of the ligand EGTA⁴-
Structural studies of several metal ion complexes with the tetraanion of the octadentate ligand, H^4EGTA (3,12-bis(carboxymethyl)-6, 9-dioxa-3, 12-diazatetradecanedioic acid), as well as the structure of H^4EGTA, have been performed by single crystal X-ray diffraction. Of particular interest was …
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Slc39a8/zip8 Influences Complex Traits By Regulating Metal Ion Metabolism
… of traits in human, and SLC39A8 loss-of-function results in developmental defects in multiple organs of both human and mice. SLC39A8 encodes ZIP8, a metal ion transporter best known for transporting manganese (Mn) and zinc (Zn), two essential nutrients required for general metabolism. The goal …
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The Role of Hydrogen Bonding in Alkali Metal Ion Solvation
In addition to the experimental measurements, RRKM/Evaporative ensemble calculations were performed on $\rm Na\sp+(CH\sb3OH)\sb{1-9}$ ion clusters to determine the internal energy distributions of the ion clusters in the ion beam as a function of cluster size. It was found that the vibrational …
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Metal ion cages with stabilized conformations : synthesis, characterization and properties
… : 41.1 : 18.0 : 4.0. With the recent encapsulation of the resolved lel₃-[Co(pn)₃₋]Cl₃ complexes, and their subsequent interconversion to the ob₃-[Co(NH₃)₂-pnsar]Cl₅ diastereomers, the synthesis of the lel₂ob and ob₂lel cage complexes is a necessity to complete the investigation of the …
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The synthesis and metal ion catalysed hydrolysis of methyl 4,5-diaminopentanoate
… (determined by potentiometric titration at 25°C and I= 0.10molℓ⁻¹) are discussed in relation to those for other 1,2-diamines. Stability constants of Cu(II) complexes of 4,5-diaminopentanoic acid and its methyl ester were evaluated from potentiometric titration data by the program …
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Ratiometric fluorescent metal ion indicators based on functionalized poly(N -isopropylacrylamide)
… fluorescent indicator based on the phase transition of a well-known stimuli-responsive polymer poly(N-isopropylacrylamide) (PNIPAM) is presented. The sensing mechanism involves the polymer conformational change resulting from charge neutralization by the analyte metal ions. The ultimate goal is …
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