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Showing 1 to 12 of 120 entries
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Rapid Diffusion and Nanosegregation of Hydrogen in Magnesium Alloys from Exposure to Water.

ACS applied materials & interfaces

Brady MP, Ievlev AV, Fayek M, Leonard DN, Frith MG, Meyer HM, Ramirez-Cuesta AJ, Daemen LL, Cheng Y, Guo W, Poplawsky JD, Ovchinnikova OS, Thomson J, Anovitz LM, Rother G, Shin D, Song GL, Davis B.
PMID: 29016100
ACS Appl Mater Interfaces. 2017 Nov 01;9(43):38125-38134. doi: 10.1021/acsami.7b10750. Epub 2017 Oct 18.

Hydrogen gas is formed when Mg corrodes in water; however, the manner and extent to which the hydrogen may also enter the Mg metal is poorly understood. Such knowledge is critical as stress corrosion cracking (SCC)/embrittlement phenomena limit many...

Structural and Functional Characterization of Recombinant Isoforms of the Lentil Lipid Transfer Protein.

Acta naturae

Bogdanov IV, Finkina EI, Balandin SV, Melnikova DN, Stukacheva EA, Ovchinnikova TV.
PMID: 26483961
Acta Naturae. 2015 Jul-Sep;7(3):65-73.

The recombinant isoforms Lc-LTP1 and Lc-LTP3 of the lentil lipid transfer protein were overexpressed in E. coli cells. It was confirmed that both proteins are stabilized by four disulfide bonds and characterized by a high proportion of the α-helical...

Band Filling Control of the Dzyaloshinskii-Moriya Interaction in Weakly Ferromagnetic Insulators.

Physical review letters

Beutier G, Collins SP, Dimitrova OV, Dmitrienko VE, Katsnelson MI, Kvashnin YO, Lichtenstein AI, Mazurenko VV, Nisbet AGA, Ovchinnikova EN, Pincini D.
PMID: 29099209
Phys Rev Lett. 2017 Oct 20;119(16):167201. doi: 10.1103/PhysRevLett.119.167201. Epub 2017 Oct 19.

We observe and explain theoretically a dramatic evolution of the Dzyaloshinskii-Moriya interaction (DMI) in the series of isostructural weak ferromagnets, MnCO_{3}, FeBO_{3}, CoCO_{3}, and NiCO_{3}. The sign of the interaction is encoded in the phase of the x-ray magnetic...

Generation of 0.9-mJ THz pulses in DSTMS pumped by a Cr:Mg₂SiO₄ laser.

Optics letters

Vicario C, Ovchinnikov AV, Ashitkov SI, Agranat MB, Fortov VE, Hauri CP.
PMID: 25490639
Opt Lett. 2014 Dec 01;39(23):6632-5. doi: 10.1364/OL.39.006632.

We report on high-field terahertz transients with 0.9-mJ pulse energy produced in a 400  mm² partitioned organic crystal by optical rectification of a 30-mJ laser pulse centered at 1.25 μm wavelength. The phase-locked single-cycle terahertz pulses cover the hard-to-access...

Engineering the thermal conductivity along an individual silicon nanowire by selective helium ion irradiation.

Nature communications

Zhao Y, Liu D, Chen J, Zhu L, Belianinov A, Ovchinnikova OS, Unocic RR, Burch MJ, Kim S, Hao H, Pickard DS, Li B, Thong JTL.
PMID: 28653663
Nat Commun. 2017 Jun 27;8:15919. doi: 10.1038/ncomms15919.

The ability to engineer the thermal conductivity of materials allows us to control the flow of heat and derive novel functionalities such as thermal rectification, thermal switching and thermal cloaking. While this could be achieved by making use of...

Resonant X-ray diffraction in incommensurately modulated crystals. Symmetry consideration of anisotropic anomalous scattering.

Acta crystallographica. Section A, Foundations of crystallography

Ovchinnikova EN, Dmitrienko VE.
PMID: 10927227
Acta Crystallogr A. 1999 Jan 01;55:20-29. doi: 10.1107/s010876739800717x.

Symmetry restrictions on the intensities and polarization properties of main reflections and their satellites are found for incommensurately modulated crystals in the case of anisotropic anomalous X-ray diffraction near absorption edges. It is shown that the modulation becomes a...

Unexpected fullerene dimerization via [5,6]-bond upon functionalization of C(s)-C70(CF3)8 by the Bingel reaction.

Dalton transactions (Cambridge, England : 2003)

Ovchinnikova NS, Goryunkov AA, Khavrel PA, Belov NM, Apenova MG, Ioffe IN, Yurovskaya MA, Troyanov SI, Sidorov LN, Kemnitz E.
PMID: 21152554
Dalton Trans. 2011 Jan 28;40(4):959-65. doi: 10.1039/c0dt00777c. Epub 2010 Dec 09.

The Bingel reaction of the C(s) isomer of C(70)(CF(3))(8) has been found to yield two C(70)(CF(3))(8)[C(CO(2)Et)(2)] monoadducts and one C(70)(CF(3))(8)[C(CO(2)Et)(2)](2) bisadduct as its major products. Malonate addition occurs at those [6,6]-bonds that radiate from the polar pentagons of the...

Molecular surface sampling and chemical imaging using proximal probe thermal desorption/secondary ionization mass spectrometry.

Analytical chemistry

Ovchinnikova OS, Kertesz V, Van Berkel GJ.
PMID: 21158396
Anal Chem. 2011 Jan 15;83(2):598-603. doi: 10.1021/ac102766w. Epub 2010 Dec 15.

Proximal probe thermal desorption/secondary ionization mass spectrometry was studied and applied to molecular surface sampling and chemical imaging using printed patterns on photopaper as test substrates. With the use of a circular cross section proximal probe with a tip...

Thin-layer chromatography and mass spectrometry coupled using proximal probe thermal desorption with electrospray or atmospheric pressure chemical ionization.

Rapid communications in mass spectrometry : RCM

Ovchinnikova OS, Van Berkel GJ.
PMID: 20499315
Rapid Commun Mass Spectrom. 2010 Jun 30;24(12):1721-9. doi: 10.1002/rcm.4551.

An atmospheric pressure proximal probe thermal desorption sampling method coupled with secondary ionization by electrospray or atmospheric pressure chemical ionization was demonstrated for the mass spectrometric analysis of a diverse set of compounds (dyestuffs, pharmaceuticals, explosives and pesticides) separated...

Controlled-resonant surface tapping-mode scanning probe electrospray ionization mass spectrometry imaging.

Analytical chemistry

Lorenz M, Ovchinnikova OS, Kertesz V, Van Berkel GJ.
PMID: 24606410
Anal Chem. 2014 Mar 18;86(6):3146-52. doi: 10.1021/ac404249j. Epub 2014 Mar 07.

This paper reports on the advancement of a controlled-resonant surface tapping-mode single capillary liquid junction extraction/ESI emitter for mass spectrometry imaging. The basic instrumental setup and the general operation of the system were discussed, and optimized performance metrics were...

Combining transmission geometry laser ablation and a noncontact continuous flow surface sampling probe/electrospray emitter for mass spectrometry based chemical imaging.

Rapid communications in mass spectrometry : RCM

Ovchinnikova OS, Kertesz V, Van Berkel GJ.
PMID: 22468331
Rapid Commun Mass Spectrom. 2011 Dec 30;25(24):3735-40. doi: 10.1002/rcm.5285.

This paper describes the coupling of ambient pressure transmission geometry laser ablation with a liquid-phase sample collection into a continuous flow surface sampling probe/electrospray emitter for mass spectrometry based chemical imaging. The flow probe/emitter device was placed in close...

Combining transmission geometry laser ablation and a noncontact continuous flow surface sampling probe/electrospray emitter for mass spectrometry based chemical imaging.

Rapid communications in mass spectrometry : RCM

Ovchinnikova OS, Kertesz V, Van Berkel GJ.
PMID: 22468331
Rapid Commun Mass Spectrom. 2011 Dec 30;25(24):3735-40. doi: 10.1002/rcm.5285.

This paper describes the coupling of ambient pressure transmission geometry laser ablation with a liquid-phase sample collection into a continuous flow surface sampling probe/electrospray emitter for mass spectrometry based chemical imaging. The flow probe/emitter device was placed in close...

Showing 1 to 12 of 120 entries