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81.
82.
Investigations of the morphologic, mesomorphic, thermotropic, thermo-optical and thermodynamical properties of new imine compounds and their copper complexes, synthesized by our group, have been carried out. Temperature transformations of typical textures for mesophases, taking place in imine compounds and copper complexes, and the peculiarities of the biphasic regions at the direct and reverse mesophase–isotropic liquid and isotropic liquid–mesophase phase transitions have been investigated. 相似文献
83.
Soňa Tkáčiková Ivan Talian Marián Petrovič Ján Sabo 《Central European Journal of Chemistry》2012,10(2):407-412
The biomarker identification is an important tool in early cancer detection. The MCF-7 breast cancer cell line was chosen
as a model system. The nuclear proteins were extracted utilizing a commercially manufactured kit and separated on two dimensional
(2-D) sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS PAGE). The first dimension was performed on isoelectric
focusing strips with pH range 4–7. Afterwards the proteins were tryptic digested and identification was performed by matrix
assisted laser desorption technique with time of flight mass analyzer (MALDI-TOF/TOF). For unambiguous identification proteins
with too low concentration or spots contains protein mixture the nano high performance liquid chromatography (HPLC) was used.
The 2-D gel electrophoresis (2-DGE) seems to be a good tool to separate large amount of proteins using relatively simple procedure
and its hyphenation with HPLC can create the perfect analytical solution for proteome identification. About 150 nuclei protein
spots were visualized and the most abundant of them were identified.
相似文献
84.
We consider the non-Fermi-liquid quantum critical state of the spin-S two-impurity Kondo model and its potential realization in a quantum dot device. Using conformal field theory and the numerical renormalization group, we show the critical point to be identical to that of the two-channel Kondo model with additional potential scattering, for any spin S. Distinct conductance signatures are shown to arise as a function of device asymmetry, with the square-root behavior commonly believed to arise at low-energies dominant only in certain regimes. 相似文献
85.
Goran N. Kaluđerović Tanja M. Vasiljević Mila D. Laušević Akmal S. Gaballa Tibor J. Sabo 《Monatshefte für Chemie / Chemical Monthly》2009,140(5):553-557
Abstract The electrospray mass spectrometric (ESI–MS) behavior of the complexes trans-dichloro(ethylenediamine-N,N′-di-3-propionato)platinum(IV), trans-dibromo(ethylenediamine-N,N′-di-3-propionato)platinum(IV), dichloro(ethylenediamine-N,N′-di-3-propionic acid)platinum(II), tetrachloro(O,O′-di-n-butyl-ethylenediamine-N,N′-di-3-propanoate)platinum(IV), chlorotribromo(O,O′-di-n-butyl-ethylenediamine-N,N′-di-3-propanoate)platinum(IV), and dichloro(O,O′-di-n-butyl-ethylenediamine-N,N′-di-3-propanoate)platinum(II), with the formulae trans-[PtCl2(eddp)] (1), trans-[PtBr2(eddp)] (2), [PtCl2(H2eddp)] (3), [PtCl4(Bu2eddp)] (4), [PtBr3Cl(Bu2eddp)] (5), and [PtCl2(Bu2eddp)]·H2O (6), is reported. The deprotonated molecular ions or halide adducts are usually observed. ESI–MS data demonstrate the usefulness
of the method for efficient characterization of metal complexes in solution.
Graphical Abstract
相似文献
86.
Inelastic effects arising from electron-phonon coupling in molecular Aharonov-Bohm (AB) interferometers are studied using the nonequilibrium Green's function method. Results for the magnetoconductance are compared for different values of the electron-phonon coupling strength. At low-bias voltages, the coupling to the phonons does not change the lifetime and leads mainly to scattering phase shifts of the conducting electrons. As a result of these dephasing processes, the magnetoconductance of the molecular AB interferometer becomes more sensitive to the threading magnetic flux as the electron-phonon coupling is increased, opposite to the behavior of an electric gate. 相似文献
87.
B. A. Kalin N. V. Volkov S. E. Sabo S. V. Zaitsev 《Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques》2010,4(5):845-851
The results of studying the redistribution of Be, Al, Ti, Fe, Cu, Zr, Mo, and W atoms incorporated in polycrystalline metal
samples under irradiation with He+, (He+ + Ar+), and Ar+ ion beams with a broad energy spectrum and an average energy of 10 keV at irradiation doses of 1 × 1021 ion/cm2 are studied. It is discovered that irradiation at doses exceeding 1 × 1019 ion/cm2 results in local small-crystal formations being produced in a near-surface substrate layer. Their typical dimensions are
less than 1–5 μm, and their the density is up to 1–100. They contain incorporated atoms and impurity atoms with a concentration
of 0.1–10 at %. Subsequent irradiation at a dose of 1 × 1020 ions/cm2 or more leads to disappearance of these formations, mainly because of sputtering processes. 相似文献
88.
N. Petranović D. Minić T. J. Sabo D. Doković 《Journal of Thermal Analysis and Calorimetry》2000,59(3):807-814
Thermal properties of facial and meridional uns-cis-[Co(eddp)gly]0.5H2O complexes were investigated by means of DSC and TG techniques. It wasshown that the processes of thermal decomposition of
these complexes are multi-stepdegradation processes, which can also be well separated into individual steps, depending onthe
molecular symmetry. Thus, the process of thermal degradation of the meridional isomerof the above complex consists of 4 well-separated
steps in the temperature interval from 100to 500°C. The corresponding kinetic and thermodynamic parameters of this process
weredetermined, and a possible mechanism is discussed.
This revised version was published online in July 2006 with corrections to the Cover Date. 相似文献
89.
Mladen Lakić Ljubica Sabo Slavica Ristić Aleksandar Savić Saša Petričević Nadežda Nikolić Aleksandar Vukadinović Drina Janković Tibor J. Sabo Sanja Vranješ‐Đurić 《应用有机金属化学》2016,30(2):81-88
The extensive development of radiopharmaceuticals towards early tumour detection and treatment has increased the demand for new ligands with higher tumour selectivity. Research has been done on the potential of the novel O,O′‐diethylethylenediamine‐N,N′‐di‐3‐propanoate ( L ) ligand as a radionuclide vehicle for tumour targeting. Under alkaline conditions, L hydrolyses and produces half ester ligand ( L' ) and diacid ligand ( L'' ), with characteristic donor atom array N,N,O. Ligand L was successfully labelled with 99mTc at pH = 9 by coordination with the octahedral fac‐[99mTc(CO)3(H2O)3]+ intermediate, forming the main radioproduct fac‐[99mTcL′(CO)3] (Tc1). The 99mTc complex showed a low lipophilic character (log P = 0.48) and low binding affinity to human serum albumin (2.51 ± 0.48%). In vitro stability studies in saline and human plasma, as well as challenge studies with cysteine and histidine, revealed high stability of the complex during 24 h. Biodistribution studies of Tc1 in female C57BL/6 mice bearing B16/F1 melanoma metastases showed significant tumour uptake: 9.81 ± 1.19%ID g?1 in the liver, 5.87 ± 0.54%ID g?1 in the lungs and 3.17 ± 0.33%ID g?1 in the ovary at 30 min post‐injection. Favourable physicochemical properties, satisfactory in vitro/in vivo stability and biodistribution profile in the experimental metastatic melanoma model indicate the possible application of the radiolabelled ligand in tumour diagnosis. Copyright © 2015 John Wiley & Sons, Ltd. 相似文献
90.
Hamedović Safet Benšić Mirta Sabo Kristian Taler Petar 《Central European Journal of Operations Research》2018,26(3):771-781
Central European Journal of Operations Research - In many applications we are faced with the problem of estimating object dimensions from a noisy image. Some devices like a fluorescent microscope,... 相似文献