26 Result(s)

Article

Representation Analysis of miRNA in Urine Microvesicles and Cell-Free Urine in Prostate Diseases

Urine of prostate cancer patients contains tumor-specific biopolymers, including protein- and microvesicles-associated miRNAs that can potentially be used as oncomarkers. Previously we have characterized urina...

I. A. Zaporozhchenko, O. E. Bryzgunova… in Biochemistry (Moscow), Supplement Series B… (2018)

Article

EPR of Nd³⁺ Ions in the Common Position in a Cubic Single Crystal KZnF₃

The electron paramagnetic resonance (EPR) spectrum of 24 magnetically nonequivalent Nd³⁺ centers has been found and studied in the perovskite-type crystal KZnF₃ for the first time. The problem of attributing EPR ...

M. L. Falin, M. M. Zaripov, V. A. Latypov in Applied Magnetic Resonance (2016)

Article

A simple novel procedure for the production of labeled monoclonal antibodies in analytical amounts for antibody pair screening in sandwich ELISA

A simple and fast procedure for obtaining labeled monoclonal antibodies (mABs) from hybridoma culture fluid in amounts sufficient for selection of antibody pairs in a sandwich ELISA and for mAB affinity assess...

M. M. Zaripov, G. V. Afanas’eva, K. A. Glukhova… in Russian Journal of Bioorganic Chemistry (2015)

Article

EPR of trivalent iron centers in SrF₂: Fe crystals

Paramagnetic centers of three types are found in SrF₂: Fe(0.2 at. %) crystals. Two types are observed in the untreated crystals, and the third type appears only in the crystals irradiated by x-rays. The EPR spect...

E. R. Zhiteĭtsev, V. A. Ulanov, M. M. Zaripov in Physics of the Solid State (2007)

Article

EPR of trivalent iron centers in a BaF₂: Fe crystal

An orthorhombic paramagnetic Fe³⁺ ion center (concentration of iron ions is 0.1 at. %) was found using EPR in BaF₂: Fe crystals irradiated by x rays. The EPR spectra recorded in the Q range at a temperature T = 7...

E. R. Zhiteĭtsev, V. A. Ulanov, M. M. Zaripov, E. P. Zheglov in Physics of the Solid State (2006)

Article

Anomalies in the magnetic properties of copper impurity clusters in barium fluoride crystals

Copper impurity trimers with antiferromagnetic coupling between Cu²⁺ ions are synthesized in BaF₂ crystals. In some of the BaF₂: Cu crystals thus prepared, the concentration of copper stable trimers turns out to ...

V. A. Ulanov, M. M. Zaripov, I. I. Fazlizhanov in Physics of the Solid State (2005)

Article

EPR study of impurity iron ion clusters in BaF₂ crystals

Tetragonal paramagnetic centers with spin S = 7/2 were detected in x-ray-irradiated BaF₂: Fe (c _Fe ≈ 0.002 at. %) crystals using the EPR method. Electronic transitions between the |±1/2〉 states of a Kramers doubl...

E. R. Zhiteitsev, V. A. Ulanov, M. M. Zaripov, E. P. Zheglov in Physics of the Solid State (2005)

Article

Electronic structure of bivalent copper off-center complexes in SrF₂ crystals from data of EPR and ENDOR spectroscopy

The electronic structure of bivalent copper off-center complexes in SrF₂ crystals is calculated from experimental data obtained earlier by electron paramagnetic resonance (EPR) and electron-nuclear double resonan...

V. A. Ulanov, O. A. Anikeenok, M. M. Zaripov… in Physics of the Solid State (2003)

Article

Trimers of bivalent copper impurity ions in CaF₂ crystals: The structure and mechanism of formation

Crystals of CaF₂: Cu (with a copper impurity content higher than 0.1 at. %) grown by the Czochralski method from a melt in a mixed helium-fluorine atmosphere are investigated using electron paramagnetic resonance...

V. A. Ulanov, M. M. Zaripov, E. P. Zheglov, R. M. Eremina in Physics of the Solid State (2003)

Article

Jahn-teller chromium ions in CdF₂ and CaF₂ crystals: An EPR spectroscopic study in the frequency range 9.3–300 GHz

The bivalent chromium impurity centers in CdF₂ and CaF₂ crystals are investigated using electron paramagnetic resonance (EPR) in the frequency range 9.3–300 GHz. It is found that Cr²⁺ ions in the lattices of thes...

M. M. Zaripov, V. F. Tarasov, V. A. Ulanov, G. S. Shakurov in Physics of the Solid State (2002)

Article

Local structure of titanium pair centers in SrF₂ crystals: EPR and ENDOR spectroscopic studies

The local structure of titanium pair centers in SrF₂: Ti crystals is investigated using electron paramagnetic resonance (EPR) and electron-nuclear double resonance (ENDOR) spectroscopy. It is found that titanium ...

I. I. Fazlizhanov, V. A. Ulanov, M. M. Zaripov, R. M. Eremina in Physics of the Solid State (2002)

Article

The influence of local distortions on the static and dynamic properties of copper and silver eightfold-coordinated Jahn-Teller complexes in mixed crystals with a fluorite-type structure

The influence of local distortions on the structure and properties of copper and silver impurity Jahn-Teller complexes in mixed crystals, namely, Ca_xSr_1−x F₂: Me ²⁺ and Sr_1−x Ba_xF₂: Me ²⁺ (0≤x≤1, Me ²⁺=Cu²⁺ or Ag

V. A. Ulanov, M. M. Zaripov, E. P. Zheglov in Physics of the Solid State (2002)

Article

Local structure of bivalent copper centers in SrF₂ crystals: An ENDOR spectroscopic study

Structural distortions of the SrF₂ crystal lattice near the bivalent copper impurity Jahn-Teller center are investigated by the ENDOR method (v=9.3 GHz, T=4.2 K). The approximate directions and the magnitudes of ...

I. I. Fazlizhanov, V. A. Ulanov, M. M. Zaripov in Physics of the Solid State (2001)

Article

Local structure of divalent silver complexes in fluorite crystals as seen by EPR method

The analytical expressions for spin-Hamiltonian parameters of Jahn-Teller paramagnetic centres [AgF₂F₆]⁶⁻ in fluorite crystals are deduced. Comparison with the experimental EPR data for CdF₂, CaF₂ and SrF₂ yields...

M. V. Eremin, V. A. Ulanov, M. M. Zaripov in Applied Magnetic Resonance (1998)

Article

Influence of structural deformations on the magnetic properties of Jahn-Teller complexes of divalent copper in Ca_xSr_1−x F₂ mixed crystals

Crystals of variable constituency Ca_xSr_1−x F₂:Cu (0⩽x⩽0.05, x≅0.5, 1.0⩾x⩾0.95) are investigated by EPR and x-ray structural analysis. The electron-Zeeman, intrinsic hyperfine, and ligand hyperfine interaction par...

V. A. Ulanov, M. M. Zaripov, V. A. Shustov, I. I. Fazlizhanov in Physics of the Solid State (1998)

Article

EPR of trivalent chromium centers with monoclinic symmetry in SrF₂ crystals

Cr³⁺ centers with monoclinic symmetry in SrF₂:Cr crystals are studied by EPR. Based on an analysis of the EPR data and a study of the conditions under which the observed samples were formed, a model is proposed w...

N. Ya. Asadullina, M. M. Zaripov, V. A. Ulanov in Physics of the Solid State (1997)

Chapter and Conference Paper

Local Deformation and Hyperfine Fields on the Ligands in Trigonal Centre Yb³⁺ in KMgF₃

The experimental investigation of transferred hyperfine interaction (THFI) of the trigonal centre Yb³⁺ with F^- ions of the nearest enviroment in KMgF₃ crystal was carried out by means of ENDOR. The theoretical an...

M. V. Eremin, M. M. Zaripov, I. R. Ibragimov… in 25th Congress Ampere on Magnetic Resonance… (1990)

Article

The exchange channel for Cr(III) pairs in various isomorphous crystal hydrates

O. F. Gataullin, M. M. Zaripov, Yu. M. Ryzhmanov in Journal of Structural Chemistry (1980)

Article

Influence of ligand replacement on the quadrupole relaxation in liquid solutions of salts

M. M. Zaripov in Journal of Structural Chemistry (1979)

Article

Effect of ligand exchange on electron paramagnetic relaxation in aqueous solutions of paramagnetic salts

M. M. Zaripov in Theoretical and Experimental Chemistry (1979)