reactions and properties of pi bonds
DESIGN, SYNTHESIS AND PROPERTIES OF METAL COMPLEXES AND COORDINATION POLYMERS FOR 2+2 PHOTO CYCLOADDITION REACTIONS
... geometry of IV-1 with labels, H- 4-6 bonded chains, and packing of showing the alignment of 4spy ligands XVIII Figure 4-2 TGA and DTG of IV-1 4-7 Figure 4-3 4-10 H-NMR spectra of IV-2 before and after ... describe the background and review the current literature to understand the rest of chapters The importance and inspiration of the work also has been provided and the scope of the dissertation will ... Comparison of PXRD patterns of III-2 and III-2 3-12 Figure 3-10 Time versus percentage conversion plots of ground 3-13 powder of III-1, III-4, single crystals of III-1, III-4 Figure 3-11 Comparison of...
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Tài liệu Nature and Properties of Micro-organisms doc
... cell components 2: Flagella Flagellum can be removed but is rapidly replaced Involved in motility and impart spinning movement and usually requires proton motive force Chemotaxis: flagella ... (VZV) VZV: Chickenpox VZV: Shingles Re-activation of latent infection Suppression of cell mediated immunity Bacteria Unicellular, DNA and RNA Binary No prokaryotes fission mitochondria ... Flagellae Important bacterial cell components 3: Pili (Fimbrae) Found on Gram negative bacteria, shorter and finer than flagella Two classes: ordinary pili ‘colonisation antigens’ Protein, attachment...
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Tài liệu Báo cáo khoa học: Identi®cation and properties of type I-signal peptidases of Bacillus amyloliquefaciens doc
... Cloning of sipU Cloning of sipU Cloning of sipU Cloning of sipU Cloning of sipU Cloning of sipU Cloning of sipU Cloning of sipU Cloning of sipV Cloning of sipV Cloning of sipV Cloning of sipV ... Cloning of sipV Cloning of sipV Cloning of sipV Construction of pOpacVh Construction of pOpacVh Cloning of sipW Cloning of sipW Cloning of sipW Cloning of sipW Cloning of sipW Cloning of sipW ... Construction of pOpacWh Construction of pOpacWh Construction of pOpacSh Construction of pOpacSh Construction of pOpacTh Construction of pOpacTh Construction of pOpacBh Construction of pOpacBh Construction...
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Báo cáo khoa học: Structure analysis of the flavoredoxin from Desulfovibrio vulgaris Miyazaki F reveals key residues that discriminate the functions and properties of the flavin reductase family pdf
... Structure of the FMN-binding region The hydrogen bonds and salt bridge that encompass the ribitol moiety and the phosphate group of FeR and M acetivorans avoredoxin are moderately and completely ... additional hydrogen bonds between the NH2 moiety of Arg51 and three atoms of FMN (N1, O2 and O3) In both FeR and M acetivorans avoredoxin, the corresponding residue is asparagine (Asn47 and Asn52, respectively) ... the Km and kcat values of E coli Fre for riboavin are reported as 2.5 lm and 52.4 s)1 with NADPH as the electron donor and 1.3 lm and 30.6 s)1 with NADH [13] For FMN, Km and kcat values of E coli...
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Báo cáo khóa học: Localization, purification and properties of a tetrathionate hydrolase from Acidithiobacillus caldus pot
... method of Lowry et al [27] using the BCA Protein Assay Kit (Pierce, Rockford, IL, USA) The molecular mass and subunit structure of the tetrathionate hydrolase were determined using MALDI-TOF MS and ... single spot and the pI of the tetrathionate hydrolase was 9.8 The molecular mass of the purified tetrathionate hydrolase was determined by SDS electrophoresis and specified by MALDI-TOF MS The enzyme ... purification yield of the enzyme may be due to several reasons Copper and several other divalent ions stimulated the activity of the tetrathionate hydrolase and they and other cofactors may be present...
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Báo cáo khoa học: Origin and properties of cytoplasmic and mitochondrial isoforms of taurocyamine kinase pptx
... mitochondrial isoform (referred to henceforth as MiTK) as described below The cDNA for the cytoplasmic TK consists of 1811 bp with an ORF of 1098 bp and 5¢ and 3¢ untranslated regions of 21 and 692 bp, ... mass of 46 201.38 Da and estimated pI of 8.55 The cDNA sequence of the MiTK has been deposited in DDBJ (AB186412) The deduced amino acid sequence of MiTK appears to have an N-terminal extension of ... other hand, mitochondrial TK showed activity for taurocyamine, lombricine (30% of that of taurocyamine) and glycocyamine (7% of that of taurocyamine) Recombinant Arenicola MiTK was incapable of phosphorylating...
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Báo cáo khoa học: Purification and properties of a new S-adenosyl-Lmethionine:flavonoid 4¢-O-methyltransferase from carnation (Dianthus caryophyllus L.) pot
... pepsinogen (pI 2.80), amyloglucosidase (pI 3.50), methyl red (pI 3.75), glucose oxidase (pI 4.15), trypsin inhibitor (pI 4.55), b-lactoglobulin A (pI 5.20), carbonic anhydrase B (pI 5.85) Gels ... 0.05 M NaPi buffer, pH 3, and acetonitrile (6 : 1, v/v); separation was performed isocratically, at a flow rate of mLÆmin)1, and the volume of injected samples was 10 lL The amounts of the residual ... Purification and properties of 4-coumarate: CoA ligase from cambial sap of spruce (Picea abies L.) Eur J Biochem 123, 583–586 12 Murashige, T & Skoog, F (1962) A revised medium for rapid growth and bioassays...
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Báo cáo Y học: Molecular cloning, bacterial expression and properties of Rab31 and Rab32 docx
... lg of platelet protein and 0.5 lg of GST and GST±Rab proteins; (B) an [a-32P]GTP overlay [17] of a nitrocellulose blot of a gel containing 40 lg of platelet protein, 0.5 lg of GST and 0.5 lg of ... form of Rab32 (see Discussion) Fig Puri®cation and properties of wild-type and mutant Rab31 and Rab32 expressed as GST±fusion proteins Samples of platelet particulate fraction protein and of puri®ed ... immunoblot of a gel containing 20 lg of platelet protein and 0.1 lg of GST and GST±Rab proteins, using a : 1000 dilution of anti-Rab31 antiserum; (D) a similar immunoblot using a : 1000 dilution of anti-Rab32...
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Mechanics and Properties of Composed Materials and Structures doc
... mechanism of opening and closing of cracks under cyclic load, transfer of shear stresses, anisotropic properties of strength and stiffness of masonry in horizontal and vertical direction, tensile and ... The effect of geometrical parameters and material properties of face sheets and core are studied on the face wrinkling of sandwich plates Comparison of the present results with those of plate theories ... increment and n is the time step; unþ1 _ _ and unþ1 are assumed, unþ1 and unþ1 are corrected values of displacement and velocity; b and c are parameters that determine the stability and accuracy of...
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Báo cáo Y học: Trehalose-phosphate synthase of Mycobacterium tuberculosis Cloning, expression and properties of the recombinant enzyme pdf
... the cloning and expression of the M tuberculosis tps gene in E coli, and the production of active TPS in these cells The properties of the recombinant enzyme have been determined, and are compared ... M) of NH4HCO3 An aliquot of each fraction was removed and assayed for its radioactive content The radioactive peak was pooled and concentrated to dryness a number of times in the presence of ... identity and 6% similarity Fig shows the predicted amino acid sequence of the M tuberculosis TPS and its sequence alignment with those of homologous ORFs from several other mycobacteria and OtsA of...
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preparation and properties of magnetic iron oxide nanotubes
... the coordination bonds between adsorbed phosphate ions and iron ions would form spin pinning and block spin flip conversion, directly resulting in the increase of coercivity of the samples Second, ... respectively) and t = 160–200 nm (t is the thickness of the rings or length of the tubes) nanorings due to the absence of the vortex states and the presence of out-plane and in-plane spin configurations ... spectra of samples S2 (a) and S3 (b) can be exclusively indexed to ␣-Fe2 O3 , according to standard data (JCPDS 33-0664) In Fig 1(b) and (c), the reflection peaks of XRD patterns of S2 and S3,...
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Báo cáo khoa học: Effect of mutations in the b5–b7 loop on the structure and properties of human small heat shock protein HSP22 (HspB8, H11) pptx
... rates of trypsinolysis of the wild-type HSP22 and its mutants, we plotted ln(At ⁄ Ao) (where Ao and At are the intensities of the band of intact protein at the beginning of trypsinolysis and at ... structure of the a-crystallin domain of human sHsp is very conservative and the loop connecting the b5 and b7 strands is shorter than the corresponding loop connecting the b5 and b7 strands of nonmetazoan ... of a mutation in this part of the molecule on the structure and properties of human sHsp Oligomeric structure of HSP22 and its mutants All samples of recombinant HSP22 and its mutants purified by...
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Báo cáo khoa học: Trehalose synthase of Mycobacterium smegmatis Purification, cloning, expression, and properties of the enzyme ppt
... solution and all run at the same time in the same solvent Standards of trehalose and maltose are applied to the sides of the paper to determine the locations of these sugars, and those areas of the ... 271) 4261 addition of solid (NH4)2SO4, and the precipitated protein was isolated by centrifugation and suspended in a minimal volume of Buffer A Gel filtration on Sephracryl S-300 and Sephracryl S-200 ... 0.5, and 10 mM initial concentrations of maltose (left side) or trehalose (right side) Samples were removed at times up to 22 h Properties of the TreS purified from M smegmatis Effect of time and...
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Báo cáo khoa học: Purification and properties of the glutathione S-transferases from the anoxia-tolerant turtle, Trachemys scripta elegans pdf
... p-nitrobenzylchloride, and p-nitrophenylacetate Temperature and pH dependence of turtle liver GSTs The temperature and pH dependence of Peak and Peak GSTs were assessed in KPi buffer under optimal ... studies characterized the properties of GST in hydroxylapatite Peaks and from control liver Isoelectric focusing Isoelectric focusing of GSTs from liver of aerobic and anoxic turtles is shown ... hydroperoxide as a substrate was not detected in Peak off hydroxylapatite Substrate and inhibitor profiles of Peaks and GST isozymes off of hydroxylapatite from aerobic control liver are summarized...
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Báo cáo Y học: Purification and properties of the extracellular lipase, LipA, of Acinetobacter sp. RAG-1 docx
... (Bio-Rad) The anode and cathode buffers were mM phosphoric acid and 20 mM lysine/20 mM arginine, respectively IEF standards were purchased from Sigma and consisted of trypsin inhibitor (pI 4.6); carbonic ... toward emulsions of both medium and long chain triacylglycerols (Fig 3) Areas of olive oil and tricaprylin hydrolysis are clearly seen and correspond with the single protein band stained in native-PAGE ... toward medium and long chain esters of pNP Maximal reaction temperature is 55 °C and LipA shows strong activity in the presence of metals, inhibitors, and organic solvents Based on these properties, ...
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Báo cáo Y học: Puri®cation and properties of an alkaline proteinase of Fusarium culmorum doc
... buffer and 200-drop fractions were collected The absorbance values of these and of the chromatography fractions in subsequent steps were measured at 280 nm and their nonspeci®c proteinase and chymotrypsin/subtilisin-like ... 4.5, 5.0 and 5.5 (Na acetate), pH 6.0, 6.5 and 6.9 (Na citrate), pH 6.9, 7.5, 7.9, 8.3, 8.7 and 9.1 (Tris/HCl) and pH 9.2, 9.6, 10.0 and 10.4 (Caps) All buffers were 80 mM The activities of the ... in 30 mM buffers: Na acetate, pH 4.1 and 4.9; Na citrate, pH 5.9 and 6.4; or Tris/HCl, pH 7.7 and 8.5 The activity of each sample was measured after and 90 of incubation For measuring its thermal...
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Sythesis and properties of spinel NiAl2O4, CoAl2O4, ZnAl2O4
... thước ô sở: 2+ a = 5,790 + 0,95R + 2,79 R 3+ Tồn dạng cấu trúc: spinel thông thường (nornal spinel) spinel ngược (inverse spinel) Spinel thường Ion B3+ chiếm lỗ trống bát diện, chiếm phân nửa ... Nội dung Thực nghiệm Kết Kết luận Tổng quan Khái niệm Spinel tên gọi chung cho nhóm khoáng có công thức hóa học chung hợp chất có cấu trúc spinel AB2O4, A B cation khác với hóa trị khác bán kính ... 1/8 lỗ trống tứ diện Nếu ion có kích thước gần lượng mạng tinh thể lớn Ví dụ: loạt spinel nhôm MgAl2O4… Spinel nghịch Ion A2+ chiếm lỗ trống bát diện Ion A2+ chiếm 1/8 lỗ trống tứ diện Ion...
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processing and properties of nanocomposites, 2007, p.463
... discovery of fullerenes, and the structural perfection of lijima's nanotubes which implied a whole range of exciting properties CNTs have typical diameters in the range of ~1—50 nm and lengths of many ... This general concept of exploiting the inherent properties of nanoscaled materials is not limited to the mechanical properties of a material, since a wide range of physical properties also depend ... part of an 'interphase' In other words, the properties of the whole matrix may differ from the pure bulk polymer in terms of the degree of cure, chain mobility, chain conformation, and degree of...
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structure and properties of atomic nanoclusters, 2005, p.427
... selection of topics and illustrative examples The second reason has to with the limitations of my knowledge of the field Third, I consider an in-depth presentation of a limited number of topics more ... consists of the reduction of Fe2+ and Nd3+ salts using borohydride ions in aqueous solution The concentration and speed of addition of the reactants, the control of the pH, the temperature and the ... distances of 1.0 and 1.05 (short bonds) , in units of the radius of the Icol3, and a second neighbor distance of 1.45 The distance 1.0 corresponds to first neighbors on different shells, and the...
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Báo cáo hóa học: " Preparation and properties of copper-oil-based nanofluids" ppt
... r and ν are the density and kinematic viscosity of the nanofluid, respectively, at the same temperature Measurements of the thermal conductivities of Cu nanofluids were performed by means of ... shown in Figure 2b, the bands of C-H and OCH2 are also observed in the surface-modified Cu nanoparticles, while the absorption peaks of P = S and P-S shifts, and the bands of N-H mostly disappear ... additives in oils Viscosities and thermal conductivities of nanofluids The effects of both temperature and mass fraction of the nanoparticles on the viscosities of the nanofluids were investigated...
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