oxidation modernorganicsynthesis

ANALYSIS OF HYDROXYL RADICAL GENERATION IN ADVANCED OXIDATION PROCESS -EFFECT OF HUMIC SUBSTANCES DURING OZONATION

ANALYSIS OF HYDROXYL RADICAL GENERATION IN ADVANCED OXIDATION PROCESS -EFFECT OF HUMIC SUBSTANCES DURING OZONATION
... shown) In order to obtain the mathematical relation of enhancing parameters of 3-chlorophenol on OH radical generation during ozonation, the initial velocities in the mixture of various amounts of ... evaluate OH radical generation in water containing humic acid during ozonation 20-60 µM of aqueous ozone was rapidly mixed with DMPO solution containing humic acid at room temperature After mixing aqueous ... to optimize the condition in ozone treatment process of water containing phenolic substances Effect of humic acid on OH radical generation Because of high viscosity of humic acid suspension, batch...
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Tolerance Level of Dissolved Oxygen to Feed into Anaerobic Ammonium Oxidation (anammox) Reactor

Tolerance Level of Dissolved Oxygen to Feed into Anaerobic Ammonium Oxidation (anammox) Reactor
... conversion rates over time of two reactors In reactor 1, the nitrogen conversion rate had decreased from 2.9 to 1.3 kg-N/m3/d when influent DO of mg/L had been fed into reactor After that, the DO ... conversion rate was 2.3 kg-N/m3/d when DO of mg/L was fed into the reactor When DO of about mg/L, 2.5 mg/L and less than mg/L were fed into the reactors, DO concentrations in the effluent were ... concentrations of the two reactors The maximum nitrogen conversion rate of each reactor at the influent DO of about 0.2 mg/L was set to an anammox activity value of 1.0, and for the other concentrations of...
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Visible Light Driven Photoelectrochemical Water Oxidation onNitrogen-Modified TiO2Nanowires

Visible Light Driven Photoelectrochemical Water Oxidation onNitrogen-Modified TiO2Nanowires
... better visible light absorbance, although unfortunately this has not always lead to better water oxidation performance and photocatalytic activity.13,22 However, it is clear that by using a water oxidation ... N-modified TiO2 films Water Oxidation Catalyst for N-Modified TiO2 Nanowire Films In PEC water splitting, the water oxidation half reaction is normally more challenging than water reduction and ... substitutional N species found at 394 eV is likely the main contributor to visible light absorption and changes in the water photo -oxidation performance in the TiO2 nanowire films, as shown in the next...
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Luận văn Chuyển đổi ammonium trong nước thải chăn nuôi heo bằng việc ứng dụng quá trình Nitrification và Anammox (Anaerobic Ammonium Oxidation)

Luận văn Chuyển đổi ammonium trong nước thải chăn nuôi heo bằng việc ứng dụng quá trình Nitrification và Anammox (Anaerobic Ammonium Oxidation)
... trường Mục Tiêu Nghiên Cứu Nghiên cứu q trình chuyển đổi ammonium nước thải chăn ni heo việc ứng dụng q trình Nitrification Anammox (Anaerobic Ammonium Oxidation) Nội Dung Nghiên Cứu SVTH:Nguyễn ... cho việc thiết kế quy trình cơng nghệ xử lý ammonium nước thải chăn ni heo Việc ứng dụng q trình Nitrification Anammox có khả xử lý triệt để nguồn nhiễm dạng nitơ nước thải, sản phẩm cuối q trình ... xử lý nước thải chăn ni heo ứng dụng phản ứng ghép SHARON – ANAMMOX Tính Thực Tế Của Đề Tài Đề tài nghiên cứu có tính ứng dụng cao nước thải số ngành có nồng độ ammonium cao như: nước thải chăn...
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Tài liệu Báo cáo khoa học: Effect of ionic strength and oxidation on the P-loop conformation of the protein tyrosine phosphatase-like phytase, PhyAsr docx

Tài liệu Báo cáo khoa học: Effect of ionic strength and oxidation on the P-loop conformation of the protein tyrosine phosphatase-like phytase, PhyAsr docx
... al Effect of ionic strength and oxidation on PhyAsr A A R258 R258 C252 OCS 252 B B R258 R258 OCS252 C252 Fig (A) Conformation of the P-loop at low ionic strength in the absence of ligand The P-loop ... Structure of PhyAsr under low and high ionic strength conditions To examine the structural effect of ionic strength on the P-loop, X-ray crystal structures of PhyAsr were determined at several ionic strengths, ... [30] The ionic strength P was calculated using the equation I = ½ ciZi2, where I is the ionic strength of the solution, and ci and Zi are the concentration and charge of species i, respectively The...
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Tài liệu Báo cáo khoa học: Oxidation inhibits amyloid fibril formation of transthyretin ppt

Tài liệu Báo cáo khoa học: Oxidation inhibits amyloid fibril formation of transthyretin ppt
... and the kinetics of fibril formation of these oxidized proteins reveal the amino acid interactions that are critical in the onset of amyloidogenesis The rates of amyloid fibril formation for WT ... confirm that Oxidation inhibits amyloid fibril formation of TTR the methionine residues of WT TTR and V30M TTR are highly reactive toward oxidative modification The inhibition effects of fibril formation ... in the onset of amyloid fibril formation Alternatively, the inhibition of fibril formation may purely be the result of an increase in solubility of oxidized proteins [6,41] Limited oxidation increases...
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Tài liệu Báo cáo khoa học: Critical roles of Asp40 at the haem proximal side of haem-regulated phosphodiesterase from Escherichia coli in redox potential, auto-oxidation and catalytic control doc

Tài liệu Báo cáo khoa học: Critical roles of Asp40 at the haem proximal side of haem-regulated phosphodiesterase from Escherichia coli in redox potential, auto-oxidation and catalytic control doc
... containing mM EDTA The auto-oxidation rates of Asp40Ala and Asp40Asn mutants were measured at 25 °C Oxidation of the sample was observed by Ó FEBS 2004 Haem proximal side of a haem- regulated phosphodiesterase ... binding, redox potential and auto-oxidation rates of Ec DOS PAS, and catalytic activities of full-length enzymes We found that the mutations at Asp40 markedly altered the redox potential and auto-oxidation ... higher than that (0.045 mM)1Æs)1) of the wild-type protein (Table 2) The data indicate that mutation of Asp40 at the haem proximal side alters the cyanide binding property only slightly, and may not...
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Tài liệu Báo cáo Y học: Oxidation of phenols by laccase and laccase-mediator systems doc

Tài liệu Báo cáo Y học: Oxidation of phenols by laccase and laccase-mediator systems doc
... the results of our laccase oxidations of substrates 1–5, and the effect of the cosolvent and of the mediators on the amount of substrate metabolized by the enzyme (a) Laccase and laccase/ HPI ... the other hand, the laccase/ TEMPO system performs the selective oxidation of the hydroxymethyl groups of the substrate to aldehydes Both with laccase alone and with the laccase/ HPI system, a limited ... 5955–5956 Oxidation of phenols (Eur J Biochem 269) 5335 19 Johannes, C & Majcherczyk, A (2000) Natural mediators in the oxidation of polycyclic aromatic hydrocarbons by laccase mediator systems...
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Báo cáo " Study on the characteristics and catalytic properties of Pt/SBA-15 in the selective oxidation of D-Glucose " potx

Báo cáo
... was dispersed inside the pore of support material (a) 3.3 Catalytic activities of Pt/SBA-15 in the oxidation of D-glucose The results of the oxidation of D-glucose carried out on Pt/SBA-15 catalyst ... Conclusions Figure HPLC-RID image of the products of D-glucose oxidation on PS-1 catalyst On the other hand, the reaction on Pt/SBA15 catalysts with pH control not only showed a high conversion, ... catalyst, the conversion decreased significantly The pH at the end of the reaction was about 2.7 This condition facilitated the formation of gluconolactone and disaccharide and inhibited the catalyst...
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Báo cáo khoa học: Active site residue involvement in monoamine or diamine oxidation catalysed by pea seedling amine oxidase doc

Báo cáo khoa học: Active site residue involvement in monoamine or diamine oxidation catalysed by pea seedling amine oxidase doc
... reaction intermediate [28] In this work, we examined the structural factors underlying substrate specificity and catalytic rates in copper amine oxidase from pea seedlings We compared the kinetic ... substrate binding and subsequent catalysis for two HPAOs [23] Electrostatic or hydrophobic forces have been suggested to drive polyamines (spermine and spermidine) and long-chain diamines, respectively, ... were obtained by fitting kinetic parameters to equations for kc and Km of CAD and HEX, as reported in the Discussion The dashed line in panel C is a curve obtained fitting (kc ⁄ Km)CAD according to...
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Báo cáo khoa học: Thioredoxin Ch1 of Chlamydomonas reinhardtii displays an unusual resistance toward one-electron oxidation potx

Báo cáo khoa học: Thioredoxin Ch1 of Chlamydomonas reinhardtii displays an unusual resistance toward one-electron oxidation potx
... reactivity of WT and two mutant forms, D30A and W35A, of Trx toward • References Holmgren, A (1985) Thioredoxin Annu Rev Biochem 54, 237– 271 Watson, W.H & Jones, D.P (2003) Oxidation of nuclear thioredoxin ... radiolysis oxidation of tryptophan was performed in phosphate buffer solution in the presence of tert-butanol (500 mM NaN3, 500 mM tert-butanol) The presence of tert-butanol induced a broadening and ... point out two new bands increasing with the dose Ó FEBS 2004 One-electron oxidation resistance of thioredoxin Ch1 (Eur J Biochem 271) 3485 Fig Fluorescence spectrum of W35A and D30A (inset) (77...
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Báo cáo khoa học: Radical-induced oxidation of metformin pptx

Báo cáo khoa học: Radical-induced oxidation of metformin pptx
... Structures of the protonated form of metformin (1,1-dimethylbiguanide) and of the oxidation products generated from ÆOH attacks on metformin, according to [19] and nonaerated irradiated solutions of metformin ... the radical-induced oxidation of metformin MTFÆ symbolizes the ÆOH-induced radical of metformin Once metformin radicals are produced, they might undergo various reactions leading to different oxidation ... LÆmol)1Æs)1 at pH [23]) Action of ÆOH radicals In order to study the action of ÆOH radicals on the initiation of metformin oxidation in nonaerated medium, different solutions of metformin (4–500 lmolÆL)1)...
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Báo cáo khoa học: Alpha-oxidation of 3-methyl-substituted fatty acids and its thiamine dependence pptx

Báo cáo khoa học: Alpha-oxidation of 3-methyl-substituted fatty acids and its thiamine dependence pptx
... and 8.0 [26] TPP -dependence of 2-HPCL Originally, 2-HPCL had been purified in the absence of TPP and the enzyme lost virtually all of its activity during purification The amino-acid sequences of ... Stereochemistry of the a-oxidation of 3-methyl-branched fatty acids in rat liver J Lipid Res 40, 601–609 Foulon, V (2001) a-Oxidation of 3-Methyl-Branched Fatty Acids: Study of the Enzymes Involved ... of phytanic acid accumulation and the severity of the clinical symptoms Interestingly, 30–40% of the patients are born with an absence of one of the metacarpals or metatarsals (bone in the hand...
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Báo cáo khoa học: Protective effect of dietary curcumin and capsaicin on induced oxidation of low-density lipoprotein, iron-induced hepatotoxicity and carrageenan-induced inflammation in experimental rats ppt

Báo cáo khoa học: Protective effect of dietary curcumin and capsaicin on induced oxidation of low-density lipoprotein, iron-induced hepatotoxicity and carrageenan-induced inflammation in experimental rats ppt
... controls Protective effect of dietary curcumin, capsaicin and their combination on iron -induced LDL oxidation in vivo and copper -induced LDL oxidation in vitro Oxidation of LDL observed in iron(II) ... Manjunatha and K Srinivasan Protective effect of dietary curcumin, capsaicin and their combination on iron -induced LDL oxidation in vivo and copper -induced LDL oxidation in vitro Male Wistar rats (eight ... compilation ª 2006 FEBS 4529 Health protective effects of curcumin and capsaicin H Manjunatha and K Srinivasan Table Effect of dietary curcumin and capsaicin on iron(II) -induced (in vivo) and copper-induced...
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Báo cáo khoa học: Enzymatic oxidation of NADP+ to its 4-oxo derivative is a side-reaction displayed only by the adrenodoxin reductase type of ferredoxin-NADP+ reductases potx

Báo cáo khoa học: Enzymatic oxidation of NADP+ to its 4-oxo derivative is a side-reaction displayed only by the adrenodoxin reductase type of ferredoxin-NADP+ reductases potx
... withdrawn, AMP was added as internal standard, and samples were analyzed by ion exchange chromatography as described above The amount of NADPO was determined on the basis of peak integration data ... that the NADP+ oxidation reaction is highly regiospecific Kinetics of NADPO formation as catalyzed by FprA and AdR Figure 4A shows the time courses of NADP+ oxidation to NADPO catalyzed by FprA ... basis of the phosphate released by alkaline phosphatase treatment The absorbance spectrum of the nucleotide is shown in Fig 3A in comparison to those of NADP+ and NADPH A peculiar feature of the...
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