uv ord cd and ir spectroscopy
Báo cáo Y học: Conformational analysis by CD and NMR spectroscopy of a peptide encompassing the amphipathic domain of YopD from Yersinia potx
Ngày tải lên :
31/03/2014, 21:21
... structures were examined using CD spectroscopy and 2D homonuclear/heteronuclear NMR spectroscopy Using these peptides, the interaction between the amphipathic domain of YopD and its cognate chaperone ... these peptides, CD experiments were conducted on YopD278)292, YopD271)292 and YopD278)300 The CD spectrum of YopD278)300, in aqueous buffer, showed two minima at 208 and 222 nm and an isodichroic ... 40% 2,2,2-trifluoroethanol No CD data was collected for YopD271)300 because this peptide was difficult to solubilize in phosphate buffer CD spectra were recorded on a CD6 spectrodichrograph (Jobin-Yvon...
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Ir and raman spectroscopy wartewig
Ngày tải lên :
17/03/2014, 14:46
... of IR and Raman spectroscopy in various scientific disciplines ranging from chemistry and physics to bioscience and medicine On the other hand, handling, manipulating and evaluating of IR and ... environment In the directory C:\OPUSDEMO\DATA you will find the collection of vibrational spectra split up into the folders ACQUIS, APODIZ, MIR, NIR, and RAMAN The two spectra libraries IR and ... verify this and as a little OPUS exercise, you should load the files MIR\WATER and MIR\DWATER, which are the IR spectra of water and deuterium oxide, respectively Using the crosshair cursor determine...
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IR and Raman Spectroscopy Fundamental Processing docx
Ngày tải lên :
29/06/2014, 06:20
... of IR and Raman spectroscopy in various scientific disciplines ranging from chemistry and physics to bioscience and medicine On the other hand, handling, manipulating and evaluating of IR and ... environment In the directory C:\OPUSDEMO\DATA you will find the collection of vibrational spectra split up into the folders ACQUIS, APODIZ, MIR, NIR, and RAMAN The two spectra libraries IR and ... verify this and as a little OPUS exercise, you should load the files MIR\WATER and MIR\DWATER, which are the IR spectra of water and deuterium oxide, respectively Using the crosshair cursor determine...
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Tài liệu Báo cáo khoa học: Allosteric modulation of myristate and Mn(III)heme binding to human serum albumin Optical and NMR spectroscopy characterization pptx
Ngày tải lên :
20/02/2014, 02:22
... transport of lipophilic compounds and drugs and of medium and long chain fatty acids; among them, myristic acid is a stereotypic ligand to investigate fatty acid binding and transport properties of ... conformational changes of the N and B states of Mn(III)heme–HSA, by optical absorbance spectroscopy and NMR spectroscopy, that show allosteric interaction(s) between FAs and Mn(III)heme with HSA Interestingly, ... propionates point toward the interface between domains I and III and are stabilized by salt bridges with His146 and Lys190 residues [6,8] HSA undergoes pH- and allosteric effector-dependent reversible conformational...
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Báo cáo khoa học: Influence of inflammation-related changes on conformational characteristics of HLA-B27 subtypes as detected by IR spectroscopy potx
Ngày tải lên :
06/03/2014, 00:21
... peak maxima, and (b) IR bands due to amino acid side-chain absorptions (overlapping bands of Glu and Asp) between 1550 and 1585 cm)1 may overlap with residual amide II band features and may change ... each sample, with standard deviations of 0.5–1 °C IR band B*2705:pVIPR-U5 B*2709:pVIPR-U5 B*2705:pVIPR B*2709:pVIPR Tyr band b2m-band Tyr band b2m-band 63.0 63.8 63.4 63.4 64.7 64.4 63.2 63.7 65.9 ... before collection of IR data of the complexes and mgÆmL)1 for b2m IR spectroscopy The protein solutions were always freshly prepared and placed into demountable calcium fluoride IR cells [30] with...
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Báo cáo khoa học: X-ray crystallography, CD and kinetic studies revealed the essence of the abnormal behaviors of the cytochrome b5 Phe35fiTyr mutant pdf
Ngày tải lên :
08/03/2014, 10:20
... cyt b5 and apo-Mb were mixed at a final concentrations of 25 lM and 30 lM for cyt b5 and apo-Mb, respectively The spectrum recording conditions were the same as described above UV visible spectroscopy ... shows the CD spectra of wild-type cyt b5 in the farUV region at 30 °C, 65 °C, 70 °C and 95 °C, respectively The Phe35fiTyr mutant shows similar CD spectra (data not shown) When cyt b5 and its mutant ... [21] that the core consists of b-strand III (Tyr27–Leu32), b-strand II (Thr21–Leu25), b-strand I (Lys5–Tyr7) and a-helix I (Thr8– His15) Trp22, Tyr6, Tyr7, Tyr27 and Tyr30 are the main aromatic components...
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Effect of cd and as in soil on growth availability to plant
Ngày tải lên :
16/03/2014, 00:07
... As and Cd were limited (John, 1972; Sadana and Singh, 1987) Therefore, this study was carried out to find the adverse effect of As and Cd on the growth of chinese cabbage, radish and lettuce and ... lettuce for As and chinese cabbage > radish > lettuce for Cd Table Concentrations of Cd in Chinese cabbage, radish, and different Cd concentrations in soil Cd conc (mg kg-1 F.W.) Cd conc Chinese ... the concentration of Cd, too Table Theoretical acceptable Cd and As concentration in the upland soils their absorption curve with chinese cabbage, radish, and lettuce Index As Cd -1 15 PTWI ( g...
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Effect of cd and ni on soybean seed development
Ngày tải lên :
16/03/2014, 00:07
... Effect of irrigation with lead and cadmium on the growth and on the metal uptake of cauliflower, spinach and parsley Journal of Environmental Science and Health Part A: Environmental Science and Engineering ... pollutants and soybean seed development 449 Table Effect of Cd and Ni on dry mass and seeds per pod for mature (BP) seeds harvested from plants grown in 0.05 mg/litre Cd or mg/litre Ni SD and sample ... Figure Effect of Cd and Ni on the sugar and starch content (mg glucose/seed) of seeds harvested from plants grown in 0.05 mg/litre Cd or mg/litre Ni IP and YP values for Ni and Ni control treatments...
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Effects of ph on cd and zn uptake by plant
Ngày tải lên :
16/03/2014, 00:07
... speciation modela 2.3 Chemical speciation modelling Species Log K Log Q CdOH+ Cd( OH)0 Cd( OH)− + CdCl CdCl0 CdCl− CdCl2− CdSO0 Cd( SO4)2− CdCO0 ZnOH+ Zn(OH)0 Zn(OH)− Zn(OH)2− ZnCl+ ZnCl0 ZnCl− ZnCl2− ZnSO0 ... OXI91/ EO90) and hydrogen ion activity with a glass electrode (Ingold 104573002) Stocks of cadmium and zinc, containing 100 mM Cd and 1000 mM Zn, were prepared The radioisotopes 10 9Cd and 65Zn (Amersham ... stability data base for zinc and cadmium was built based on the data of Smith and Martell (1976), Martell and Smith (1982) and Smith and Martell (1989) The thermodynamic and conditional stability...
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Báo cáo khoa học: Structures and mode of membrane interaction of a short a helical lytic peptide and its diastereomer determined by NMR, FTIR, and fluorescence spectroscopy pdf
Ngày tải lên :
17/03/2014, 11:20
... subjected to amino acid analysis and electrospray mass spectroscopy to confirm their composition and molecular mass Preparation of liposomes Small unilamellar vesicles (SUV) were prepared by sonication ... b sheet structure and the region between 1640 and 1645 cm)1 corresponds to a random coil The amide I region of an a helical structure is located between 1650 and 1655 cm)1, and the amide I region ... the FTIR data discussed above Characterization of the tryptophan environment using fluorescence spectroscopy More information upon the membrane environment of the peptides was obtained by recording...
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Báo cáo " On some controversially-discussed Raman and IR bands of beryl " pdf
Ngày tải lên :
22/03/2014, 12:20
... content and the IR band was at a higher position in these samples Such relations were not found between these bands and Be concentration We were therefore able to confirm the assignment of these bands ... content of silicon and band position and FWHM for beryls of different origins This meant that in the samples where the silicon content was high the band position and FWHM were low and in the samples ... the band position and FWHM were high We therefore agreed with the authors who assigned this band to vibration of Si-O, since there was no such correlation between beryllium concentration and band...
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Báo cáo khoa học: Defining the QP-site of Escherichia coli fumarate reductase by site-directed mutagenesis, fluorescence quench titrations and EPR spectroscopy doc
Ngày tải lên :
23/03/2014, 13:20
... SdhCDAB coordinates a single heme b (b556) that is sandwiched between the SdhC and SdhD subunits [8,9] Quinone binding and reduction is believed to take place in the region between the heme and ... FrdB; R28, E29, W86, L89 and A93 from FrdC; and W14, F17, G18, H80, R81 and H84 from FrdD [3,4,10] Site-directed mutants of some of these residues have been generated and partially characterized, ... panels, FrdB and FrdA are above the MQ ⁄ HOQNO plane, and FrdC and FrdD are substantially below the MQ ⁄ HOQNO plane Residues from FrdB, FrdC and FrdD have labels starting with ‘B-’, ‘C-’, and ‘D-’,...
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Báo cáo hóa học: " FTIR and Raman Spectroscopy of Carbon Nanoparticles in SiO2, ZnO and NiO Matrices" pdf
Ngày tải lên :
22/06/2014, 01:20
... ultraviolet and visible wavelength ranges (0.3–2.5 lm) Raman spectroscopy was also used to study these samples using a Jobin-Y von T64000 Raman spectrometer The observations from the FTIR and Raman spectroscopy ... absorption band, at 900 cm-1, is an absorption band that can be assigned to the stretching vibration of Si–OH or Si–O- groups A broad absorption band, situated between 3,000 and 3,600 cm-1, and another ... are weaker than the G peaks and this suggests that the grain sizes could be larger than 44 nm [12] From the peak positions xD and xG and intensities ID and IG of the D and G-peaks, respectively,...
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Rotational and Vibrational Spectroscopy pdf
Ngày tải lên :
27/06/2014, 01:20
... The basic! Microwave Infrared (IR) The History of Infrared and Raman Spectroscopy Infrared (IR) Spectroscopy: – First real IR spectra measured by Abney and Festing in 1880’s – Technique ... phonon bands P F Taday and D A Newnham, Spectroscopy Europe, , www.spectroscopyeurope.com G Winnewisser, Vibrational Spectroscopy (1995) 241-253 23 Applications of Near IR Spectroscopy Near IR – ... Near-infrared, In Handbook of Vibrational Spectroscopy, Vol 3, Wiley, U.K., pp 1817-1837 Workman, J (2000) Handbook of Organic Compounds: NIR, IR, Raman, and UV- Vis Spectra Featuring Polymers and Surfactants,...
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nanotechnology and chiroptical spectroscopy to characterise optically active chiral metamaterials
Ngày tải lên :
22/12/2014, 19:52
... chiral and achiral plasmonic metamaterials, referred to as chiral and achiral plasmonic nanostructures, have been investigated Also, illustration and applications for the so called `Superchiral ... several linear and non-linear chiroptical techniques namely as extinction (absorption and scattering), CD, ORD and SHG spectroscopy, in addition to scanning imaging namely SEM and AFM microscopy ... classes so far, namely as: helical chirality/propellers, helical chirality/spirals, chiral coupling, supermolecular chirality, pseudo/extrinsic chirality and chiral scaffolds [7, 9-23] The work...
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Tài liệu Báo cáo Y học: Electrochemical, FT-IR and UV/VIS spectroscopic properties of the caa3 oxidase from T. thermophilus docx
Ngày tải lên :
21/02/2014, 15:20
... oxidized and the negative signals with the reduced form of the enzyme For the reduced form, the Soret band can be observed at 415 and 442 nm, and for the oxidized form at 403 and 422 nm The b–band ... single beam spectra in the VIS and IR range were recorded A potential step to the final potential was then applied, and single beam spectra of this state were again recorded after equilibration Difference ... electrode types Spectroscopy FT -IR and UV/ VIS difference spectra as a function of the applied potential were obtained simultaneously from the same sample with a setup combining an IR beam from the...
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IR-UV
Ngày tải lên :
01/07/2013, 01:25
... điện từ Lịch sử phát tia hồng ngoại (IR) tử ngoại (UV) Các đặc tính IR UV “Nhìn thấy” thông qua “không nhìn thấy” Các ứng dụng IR UV Sự nguy hiểm tia UV 07/01/13 Tài liệu hỗ trợ - Quang ... ngoại (1) Thông thường, người ta chia làm vùng tử ngoại: UV- A: (3150 ÷ 4000Ao): gây cháy nắng, UV- B: (2800 ÷ 3150Ao): gây ung thư da,… UV- C: (150 ÷ 2800 Ao): bị hấp thụ bầu khí quyển, … Mặt ... light itself (including radiant heat and other radiations) is an electromagnetic disturbance in the form of waves propagated through the electromagnetic field according to electromagnetic laws” Maxwell...
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PHOTOREACTIVATION OF ENTEROHEMORRHAGIC E. COLI, VRE AND P. AERUGINOSA FOLLOWING UV DISINFECTION
Ngày tải lên :
05/09/2013, 08:40
... dosimeter (UVR-1 and UVR-36, TOPKON, Tokyo) Sunlight irradiation was also carried out in a batch irradiation system UV irradiated samples are carried outside from the laboratory and irradiated ... Comparison of UV Dose Required for 90% Inactivation of Tested Bacteria The UV doses required for 90% inactivation of tested bacteria are shown in Figure (Tosa and Hirata, 1999) VRE was the most UV resistant ... P aeruginosa and EHEC were weaker The UV doses required for 90% inactivation of VRE with and without photoreactivation was 10.9 and 24.2 mW sec/cm2 , respectively The UV doses required for 90%...
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UV-disinfection Reactor Validation by Computational Fluid Dynamics and Relation to Biodosimetry and Actinometry
Ngày tải lên :
05/09/2013, 09:08
... exposure to UV; E(φ) =UV Dose distribution function In order to determine UV Dose distribution function, it is necessary to know the path of the particle (microbes) in the reactor and the UV intensity ... 0.826 UV density W/m3 5306 8783 6648 9316 Intensity w/m2 The UV density is defined as: UV density = 254nm UV output×Number of lamps/Volume of reactor (12) It was founded that the higher UV density ... biodosimetric RED and CFD model’s RED ACTINOMETRIC VALIDATION OF UV REACTOR WITH FREE CHLORINE A combination of UV dose-response curve and chemical actinometry were used in this experiment A UV dose-response...
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Safeguarding Public and Environmental Health: What are the Necessary Requirements of UV Reactor Validation Protocols?
Ngày tải lên :
05/09/2013, 09:08
... and UV systems would be designed and operated safely based on their actual measured performance When the challenge organism is not the same as the target organism and does not have the same UV ... microbes and the UV dose that would be measured had the target microbes been used as the challenge microbes This important fact has been recognized and addressed in the USEPA draft UVDGM, and quantified ... for UV- sensitive microorganisms than for UV- resistant microorganisms (Wright and Lawryshyn, 2000), and these differences will be amplified for reactors with wider dose distributions (Petri and...
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