thermochemistry electrochemistry and kinetics
Tài liệu Báo cáo khoa học: Affinity and kinetics of proprotein convertase subtilisin ⁄ kexin type 9 binding to low-density lipoprotein receptors on HepG2 cells docx
... Dissociation time courses and effects of unlabeled ligands and low pH on the dissociation rates of [125I]TC-PCSK9 (A) and [125I]TC-PCSK9-D374Y (B) from HepG2 cells Binding to equilibrium and removal of ... whether the kinetics of binding of PCSK9 to HepG2 cells can be described as a simple bimolecular reaction, the kinetics of [125I]TC-PCSK9 and [125I]TC-PCSK9-D374Y dissociation from and association ... both ligands, and the radioactivity associated with cells was at least 10 times of the counts associated with blank wells Fig Cell density dependence of the binding of [125I]TC-PCSK9 and [125I]TC-PCSK9-D374Y...
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Tài liệu ADSORPTION ANALYSIS: EQUILIBRIA AND KINETICS doc
... molecule and a lattice plane An atom or molecule and a slab A species and two parallel lattice planes A species and two parallel slabs Adsorption isotherm for slit shape pore An atom or molecule and ... flow Understanding of the adsorptive capacity is within the domain of equilibria, and understanding of the diffusional resistance is within the domain of kinetics To properly understand an adsorption ... as the ones by Ruthven (1984), Yang (1987, 1997), Jaroniec and Madey (1988), Suzuki (1990), Karger and Ruthven (1992) and Rudzinski and Everett (1992) Conferences on adsorption are organized...
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Báo cáo khoa học: Mechanisms and kinetics of human arylamine N-acetyltransferase 1 inhibition by disulfiram potx
... hydrazines and their N-hydroxylated metabolites [12] NATs plays a key role in the detoxification and ⁄ or activation of numerous drugs and carcinogens [13] In humans, two functional isoforms, NAT1 and ... Molecular genetics and function of NAT1 and NAT2: role in aromatic amine metabolism and carcinogenesis Mutat Res 65, 506–507 14 Grant DM, Blum M, Beer M & Meyer UA (1991) Monomorphic and polymorphic ... oxidants [19–21] and by certain therapeutic drugs, such as cisplatin [22] and acetaminophen [23] Several recent studies have indicated that NAT1 may contribute to increased cancer risk and carcinogenesis...
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Báo cáo Y học: Thermodynamics and kinetics of the cleavage of DNA catalyzed by bleomycin A5 A microcalorimetric study pdf
... and O2 are 17.3, 10.8, 340 and 650 lM, respectively solutions taken from both the reaction cell and the reference one were brownish yellow Tables and summarize the molar reaction enthalpies and ... Michaelis–Menten kinetics The cleavage of calf thymus DNA by a mixture of ADM, Fe3+, Vc and O2 and by a mixture of (1,10phenanthroline)-copper(II), ME and O2 not, however, follow the Michaelis–Menten kinetics ... 21.5 lM BLM-A5, 20 lM ferrous iron and 15.2 lM calf thymus DNA was saturated with purified oxygen and incubated in 50 mM Tris/HCl buffer at pH 7.4 and 20 °C for 30 and then scanned from 250 to 500...
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chemical equilibria and kinetics in soils
... CHEMICAL EQUlLmRIA AND KINETICS IN SOILS (1.17) where Zi is the valence of the metal or ligand whose total molality is m Ti and the sum is over all metals (including hydrogen) and ligands (including ... reactants and products in their Standard States: CHEMICAL EQUILmRIUM AND KINETICS ~ r GO = -RT In K 17 (s1.14) where ~,G0 is the standard Gibbs energy change, R is the molar gas constant, and T is ... group and a bound species is termed a ligand"l The aqueous ions, MnCI+, HCO;, and AI(H20)~+, are complexes, with Mn2+, CO~-, and AP+, respectively, usually chosen as central groups and CI-, H" and...
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introduction to chemical reaction engineering and kinetics
... book, kinetics and CRE, the latter is the main objective, and we consider kinetics primarily as it contributes to, and is a part of, CRE 1.1 NATURE AND SCOPE OF CHEMICAL KINETICS Chemical kinetics ... INTRODUCTION 1.1 Nature and Scope of Chemical Kinetics 1.2 Nature and Scope of Chemical Reaction Engineering 1.3 Kinetics and Chemical Reaction Engineering 1.4 Aspects of Kinetics 1.4.1 1.4.2 1.4.3 ... Law Measurement of Rate of Reaction-Preliminary Kinetics and Chemical Reaction Stoichiometry Kinetics and Thermodynamics/Equilibrium 14 Kinetics and Transport Processes 15 1.5 Aspects of Chemical...
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electrochemistry and corrosion science 2004 - perez
... the solution and a metal surface Chapter and deal with the kinetics of activation and concentration polarization of electrochemical systems, respectively The electrochemical reaction kinetics is ... protection and cathodic protection become uncomplicated or unproblematic to understand and comprehend suitable applications of electrochemistry for preventing localized corrosion and general ... electrode) and the direction of current flow Figure 2.3a shows metals and as the anode and cathode, respectively Both are immersed in their own sulfate-base electrolyte Each and 34 CHAPTER ELECTROCHEMISTRY...
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CHEMISTRY, ELECTROCHEMISTRY, AND ELECTROCHEMICAL APPLICATIONS docx
... 696 Chemistry, Electrochemistry, and Electrochemical Applications | Aluminum media, more relevant to the subject of energy storage The electrochemistry of aluminum is then defined and introduced ... and aluminum iodide (AlI3), are prepared from reactions of aluminum with halogens; they are dimeric in both liquid and vapor states, and have a bridge-like structure with fairly low melting and ... Deltombe and M Pourbaix (1958) constructed a potential–pH diagram for the aluminum–water system Later, D D MacDonald and P Butler (1973) considered Al3þ, Al(OH)2þ, and AlO2À ionic species and their...
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Thermochemical conversion of biomass acid catalysed pathways and kinetics of cellulose pyrolysis
... special thank you for her patience and understanding and my parents for making me the person I am To my children Syahmi, Rasyiqah, Raushana and Rakinah, their curiosity and energy have inspired me But ... furans and other light organic volatiles Here, with the use of experiments and modelling, we have studied the qualitative, quantitative and kinetic effects of acids (H2SO4, H3PO4 and H3BO3) and ... influence of acids and alkalis on cellulose pyrolysis pathways (Chapter 3) This chapter describes and discusses the effects of acids (H2SO4, H3PO4 and H3BO3) and alkalis (Ca(OH)2 and NH4OH) on the...
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Topological and kinetics considerations in the glass formation of AL rich AL ni based alloys
... where ETM represents (a) Zr, (b) Hf, and (c) Ti 128 6.1 Schematic diagram showing heats of mixing between Al, Ni and (a) Y; and (b) La atoms and their standard atomic sizes in comparison with ... properties, crystallography and critical sizes of representative alloys in the Al-Ni-Zr, Al-Ni-Hf and Al-Ni-Ti systems 129 6.1 Table listing Heats of Mixing between RE metal and Al, and the atomic sizes ... system with a symmetrical eutectic and glass forming zone, and (b) an irregular eutectic system with an asymmetrical (skewed) eutectic coupled and glass forming zone; and the growth temperature of...
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Infrared spectroscopy and kinetics of short lived organometallic intermediates
... to prepare and handle due to their air- and moisture-sensitivity and low stability In addition, the presence of an organometallic catalyst may add to the complexity of a reaction and renders ... determining the IR bands and life-times of the detected radical species, (3) investigating the effect of the stereo-electronic of various phosphine ligands on the spectroscopy and kinetic of the ... Cp2Mo2(CO)6 and recombination of the resulting CpMo(CO)3 radicals to form trans- and gauche-rotamers of the starting material, as shown in Scheme [35, 36] Moreover, the modest cost and the standard...
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Fourier transformed infrared absorption spectroscopy and kinetics studies of gas phase small molecules
... the vibrational bands of both reactants and products 1.2 Reactions of O(3P) atoms with CS2 Reactions of oxygen atoms are very important in basic chemical kinetics and dynamics and are of relevance ... Objectives The kinetics and dynamics of the reaction between O(3P) and CS2 are very important not only in basic research but also in atmospheric and combustion chemistry However, no kinetic data and reaction ... with the product OCSe and CSe with O2 will be studied as well Computational studies of the vibrational frequencies and band strengths of the species involved and the energies and geometries of reactive...
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Production of two dimensional layeredmaterials graphite oxide and grapheneby plasma electrochemistry and mos2 nanosheets by quenching method
... exfoliation process; and (e) a dispersion of PEEG in an NMP solution 41 Figure 4-2 (a) XRD patterns and (b) Raman spectra of HG and PEEG and (c, d) XPS spectra (C 1s signal) of (c) HG and (d) PEEG ... spectra of the GE, PEGO, and EPEGO samples, revealing their D (defect), G (graphite), and 2D (doubly generated G) bands at 1325, 1570, and 2658 cm–1, respectively 83,84 The D band of the GE has relatively ... approaches (a) oxidation, intercalation and exfoliation (negative ions are shown in red colour) and (b) reduction, intercalation and exfoliation to produce single and multilayer GN flakes 10...
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Tài liệu Báo cáo khoa học: Quantitative analysis of the experimental O–J–I–P chlorophyll fluorescence induction kinetics Apparent activation energy and origin of each kinetic step Steve Boisvert, David Joly and Robert Carpentier doc
... by the JI (32 5%) and IP (22 2%) phases Figure also shows that clear separation and distinction between the kinetics of each rise is achieved The half-times of the OJ, JI and IP rises were 0.20 ... uorescence at time t, F0 is the initial uorescence, AOJ, AJI and AIP are the amplitudes, and kOJ, kJI and kIP are the rate constants of the OJ, JI and IP steps of the uorescence transient EA values were ... (4), or lM decylplastoquinone (dPQ) at 15 C (5) and 25 C (6) ture used in this work, 15 C and 25 C FI traces for thylakoids treated with lm DCMU and lm dPQ, at both temperatures, are also presented...
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Tài liệu Báo cáo khoa học: Application of a fluorescent cobalamin analogue for analysis of the binding kinetics A study employing recombinant human transcobalamin and intrinsic factor pdf
... ligand was essentially enwrapped, and its solvent accessible surface decreased to % 7% with only the ribose moiety exposed In total, 34 hydrogen and hydrophobic contacts between TC and the ligand ... CBC and the full length IF (Fig 3A and Table 1) The time course of the binding between CBC and peptides is presented in Fig 3B,C The corresponding rate constants k+CBC and kCBC for IF20 and IF30 ... of IF, TC and HC for Cbl The probable scheme of interaction between IF, the ligand and the receptor is presented in 4750 Fig Schematic presentation of IF interaction with the ligands and the receptor...
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Tài liệu Báo cáo khoa học: Influence of modulated structural dynamics on the kinetics of a-chymotrypsin catalysis Insights through chemical glycosylation, molecular dynamics and domain motion analysis pptx
... and K Griebenow Structural dynamics and serine protease catalysis Table Kinetic and thermodynamic parameters derived from amide H D exchange rates for a-CT and for the various lactose-a-CT and ... J Sola and K Griebenow Structural dynamics and serine protease catalysis Table Global energetic parameters and DebyeWaller temperature factors calculated for the protein portion of a-CT and the ... dynamics and enzyme kinetics Next we performed a statistical correlation analysis (Fig 6) between the structural dynamic (DGHX,1) and catalytic (DG k2, DG k3) thermodynamic parameters (Tables and...
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Tài liệu Báo cáo khoa học: Kinetics and thermodynamics of nick sealing by T4 DNA ligase pptx
... Biphasic kinetics of joining of 3Â-oligonucleotides (M5C19, C24, M1C6, and M4C7) to 72/24-mer BC [dsDNA] was lM; [ATP] was 5.6 lM for M5C19, C24, and mM for M1C6 and M4C7 Ligation of M5C19 and C24 ... Enzymes and oligonucleotides Three commercial batches of T4 DNA ligase were used, and were purchased from Amersham Biosciences (Uppsala, Sweden), Roche Molecular Biochemicals (Basel, Switzerland), and ... in the case of M5C19, and 2.5 turnovers for M1C6 and M4C7 4318 A V Cherepanov and S de Vries (Eur J Biochem 270) ể FEBS 2003 Fig Formation of the ligation product (d) and the AMPDNA intermediate...
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Tài liệu Báo cáo Y học: Steady-state kinetics of the glutaminase reaction of CTP synthase from Lactococcus lactis The role of the allosteric activator GTP in coupling between glutamine hydrolysis and CTP synthesis potx
... yeast [11] and mammalian [12,13] enzymes that all require the presence of UTP and/ or ATP to form tetramers Therefore, the L lactis CTP synthase is an attractive candidate for mechanistic and structurefunction ... data obtained from ITC In panel (A) and (B) closed (squares) and closed (circles), respectively, represent the same datapoints Steady state kinetics of uncoupledand CTP synthesis-coupled glutamine ... liver, and demonstration of monomer, dimer and tetramer Biochim Biophys Acta 953, 334344 13 van Kuilenburg, A.B., Elzinga, L., van den Berg, A.A., Slingerland, R.J & Van Gennip, A.H (1994) A fast and...
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Báo cáo khoa học: ATP-dependent ligases in trypanothione biosynthesis – kinetics of catalysis and inhibition by phosphinic acid pseudopeptides doc
... was varied, ATP and Spd were kept constant at and 10 mm respectively; when Spd was varied, ATP and GSH were kept constant at and 10 mm respectively; and when ATP was varied, GSH and Spd were kept ... free enzyme, and a, b and c are the interaction factors between Spd and ATP, GSH and ATP, and GSH and Spd, respectively Inhibitors and enzyme inhibition assays Inhibitor studies employed the coupled ... Inhibition of TryS with phosphinate An understanding of the kinetic and chemical mechanism of GspS and TryS involved in the biosynthesis of glutathionylspermidine and trypanothione is crucial for the...
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