搜索结果: 1-15 共查到“理学 Ferric”相关记录18条 . 查询时间(0.125 秒)
The H93G Myoglobin Cavity Mutant as a Versatile Template for Modeling Heme Proteins:Ferrous,Ferric,and Ferryl Mixed-Ligand Complexes with Imidazole in the Cavity
copper(II) azomethine imidate crystal structures
font style='font-size:12px;'>
2016/5/23
One of the difficulties in preparing accurate ambient-temperature model complexes for heme proteins, particularly in the ferric state, has been the generation of mixed-ligand adducts: complexes with d...
The Role of the Distal and Proximal Protein Environments in Controlling the Ferric Spin State and in Stabilizing Thiolate Ligation in Heme Systems:Thiolate Adducts of the Myoglobin H93G Cavity Mutant
salicylic alcohols hydrogen bonds quantum chemistry
font style='font-size:12px;'>
2016/5/23
Recently, heme protein cavity mutants have been engineered in which the proximal coordinating amino acid has been replaced by a smaller, noncoordinating residue leaving a cavity that can be filled by ...
Assignment of the Heme Axial Ligand(s) for the Ferric Myoglobin (H93G) and Heme Oxygenase (H25A) Cavity Mutants as Oxygen Donors Using Magnetic Circular Dichroism
Alanine Animals Circular Dichroism Electron Transport Glycine Heme Heme Oxygenase (Decyclizing) Heme Oxygenase (Decyclizing) Histidine Humans Hydrogen-Ion Concentration Iron Ligands Mutagenesis, Site-Directed Myoglobin Myoglobin Oxygen Spectrophotometry,Ultraviolet Spectrum Analysis, Raman Titrimetry Whales
font style='font-size:12px;'>
2016/5/23
UV-visible absorption and magnetic circular dichroism (MCD) data are reported for the cavity mutants of sperm whale H93G myoglobin and human H25A heme oxygenase in their ferric states at 4 degreesC. D...
Cofortification of ferric pyrophosphate and citric acid/trisodium citrate into extruded rice grains doubles iron bioavailability through in situ generation of soluble ferric pyrophosphate citrate complexes
iron bioavailability iron fortification extruded rice ferric pyrophosphate trisodium citrate iron deficiency
font style='font-size:12px;'>
2018/11/29
Background: Iron fortification of rice is a promising strategy for improving iron nutrition. However, it is technically challenging because rice is consumed as intact grains, and ferric pyrophosphate ...
Ferric Hydrogen Sulfate as an Efficient Heterogeneous Catalyst for Environmentally Friendly Greener Synthesis of 1,8-Dioxo-Octahydroxanthenes
Fe(HSO4)3 dimedone heterogeneous catalyst 1,8-dioxo-octahydroxanthene
font style='font-size:12px;'>
2010/4/9
Ferric hydrogen sulfate was used as an environmentally friendly heterogeneous acidic catalyst for the greener, 1-pot, 3-component synthesis of 1,8-dioxo-octahydroxanthene via condensation reactions be...
The FeL model of iron acquisition: Nondissociative reduction of ferric complexes in the marine environment
The FeL model of iron acquisition Nondissociative reduction ferric complexes marine environment
font style='font-size:12px;'>
2014/5/4
Recently there has been recognition of the importance of reductive processes in the acquisition of iron by microorganisms in marine environments with Fe(III) reduction induced by either membrane-bound...
Spectrophotometric Studies of the Behavior of P-Amino-N, N-Dimethyl Aniline with Ferric Nitrate in Methanol
UV-visible spectrophotometry charge transfer complex Benesi-Hildebrand
font style='font-size:12px;'>
2010/4/22
The UV-visible absorption bands of the new complex were obtained using p-amino-N, N-dimethyl aniline as an electron donor with ferric nitrate as an electron acceptor in methanol at 25°C. The values o...
Precise M鰏sbauer milliprobe determination of ferric iron in rock-forming minerals and limitations of electron microprobe analysis
ferric iron rock-forming minerals electron microprobe analysis
font style='font-size:12px;'>
2012/3/30
Forestimationsof P-T conditionsofigneousandmetamorphicrocks,Fe incoexisting
mineralsiseitherassumedtobezerooriscalculatedfromelectronmicroprobeanalyses
(EMPA)baseduponstoichiometryandchargebalance.G...
Calculated role of aluminum in the incorporation of ferric iron into magnesium silicate perovskite
Calculated role aluminum incorporation ferric iron magnesium silicate perovskite
font style='font-size:12px;'>
2012/4/1
An atomistic computer simulation study was undertaken to address the role of Al in the substitution of ferric iron into magnesium silicate perovskite, MgSiO
3. Calculated substi-tution and vacancy en...
Hisingerite: A Ferric Kaolin Mineral with Curved Morphology
Cation Exchange Capacity Halloysite Hisingerite Kaolinite Nontronite Transmission Electron Microscopy X-ray Powder Diffraction
font style='font-size:12px;'>
2011/12/8
Abstract: Hisingerite, first described in 1810, has been variously regarded as noncrystalline, as a septechlorite, as ferric allophane, as ferric halloysite and as poorly crystalline nontronite. Hisin...
A convenient method for measuring ferric iron in magnesiowustite (MgO-Fe1-xO)
method measuring ferric iron magnesiowustite (MgO-Fe1-xO)
font style='font-size:12px;'>
2012/4/1
We present a new oxybarometer for magnesiowu¨stite-bearing systems, which is easily applied using widely available techniques. A scale relating the proportion of Fe31[a5Fe31/(Fe311 Fe21)] to the posit...
Naturally occurring ferric iron sanidine from the Leucite Hills lamproite
ferric iron sanidine Leucite Hills lamproite
font style='font-size:12px;'>
2012/4/5
Sanidine crystals precipitating from lamproitic magmascharacteristically contain ap-preciableamounts ofFeH. Sanidinegrainsfrom the LeuciteHillslamproites (Wyoming) have compositions in whichupto 70mol...
Role of Ferric Iron in the Oxidation of Hydrocortisone by Sepiolite and Palygorskite
Catalysis Electron spin resonance Hydrocortisone Iron Oxidation Palygorskite Sepiolite
font style='font-size:12px;'>
2012/2/6
The role of adsorbed and structural Fe3+ in palygorskite and sepiolite with respect to the oxidation of hydrocortisone in aqueous suspension has been evaluated using electron spin resonance and UV-vis...
Surface Charge Variation in Aging Ferric Hydroxide
Surface Charge Variation Aging Ferric Hydroxide titration technique
font style='font-size:12px;'>
2012/2/13
The variation with time of exchangeable surface charge of amorphous ferric hydroxide in aqueous suspension was monitored by a titration technique. After 120 days, the surface charge of suspensions wit...
The Interaction of Water with Goethite (α-FeOOH) and Amorphous Hydrated Ferric Oxide Surfaces
Goethite (α-FeOOH) Amorphous Hydrated Ferric Oxide Surfaces
font style='font-size:12px;'>
2011/11/18
Abstract: The interaction of water with synthetically prepared goethite (α-FeOOH) and amorphous hydrated ferric oxide surfaces was studied using i.r. absorption and water vapor adsorption measurements...