Magnetic Liposomes for Remote Controlled High-Molecular Drugs Release under a Low-Frequency Non-Heating Magnetic Field

Moscow University Chemistry Bulletin - Magnetic anionic liposomes (MALip) conjugated with magnetite magnetic nanoparticles (MNPs) are developed for the controlled release of a protease inhibitor...     

Beta-induced reduction in Cu/Si-structure adhesion

The effect of low-flux (I ～ 1.8 × 10⁵ cm^?2 s^?1) β irradiation on the process of the delamination of thin copper films (with a thickness of ～100 nm) from a silicon substrate under indentation by a Berkovich pyramid is studied. It is revealed that irradiation with a fluence of F = 3.24 × 10¹⁰ cm^?2 leads to an increase in the perimeter and area of the copper-film delaminations formed upon penetration of the indenter. This indicates a β-induced reduction in adhesion in the Cu/Si structure.     

The influence of low-intensity beta radiation on crack susceptibility under indentation of silicon

The dependence of the lengths of radial cracks formed during indentation of silicon single crystals on the depth of imprint has been studied using electron microscopy. The influence of low-intensity (I = 10⁵ cm⁻² s^–1) beta radiation on the crack susceptibility during indenter penetration to a depth of ∼2.5 μm has been revealed.     

Electromagnetic emission under uniaxial compression of ice: I. Identification of nonstationary processes of structural relaxation by electromagnetic signals

Discrete electromagnetic emission caused by a jump of plastic deformation and fracture of single-crystal and polycrystalline ice is revealed and investigated. An album of electromagnetic signals is compiled, which makes it possible, on the basis of the electromagnetic-signal shape, to identify and study the kinetics of mesoscopic events of structural relaxation that are related to the dynamics of dislocation pile-ups and cracks.     

Mechanical properties of AIN/Si structures under conditions of low-flux beta irradiations

The mechanical properties of AIN/Si structures under conditions of beta irradiation with fluence F = 3.6 × 10¹⁰ cm⁻² were investigated by the dynamic micro- and nanoindentation methods. A beta-induced increase in radial cracks in the area of indentor imprints was discovered.     

Influence of low-intensive beta-irradiation on phase transformations in silicon at microindentation

Raman spectroscopy is used to investigate the morphology of silicon phase composition in the indenter imprint with spatial resolution of ~200 nm. Suppression of the efficiency of Si-XII, Si-III, and a-Si phase formation induced by beta-particle irradiation from a ⁹⁰Sr + ⁹⁰Y source (fluence F = 3.6⋅10¹⁰ cm^–2) is revealed.     

Electrochemical Emission during Deformation of Titanium Grade 2 Alloy in an Aquatic Medium

Crystallography Reports - The time-dependent component of electrode potential—electrochemical emission (ECE) signal—of polycrystalline titanium Grade 2 alloy during deformation in...     

Investigation of the Mechanism of Influence of Stress Corrosion on the Development of Macroplastic Instabilities of Aluminum–Magnesium Alloy

Crystallography Reports - Macroscopic jumps of plastic deformation (few percent in amplitude) on creep curves of aluminum–magnesium alloy, caused by a local effect of concentrated solution of...     

Morphology and growth kinetics of Ni nanoparticles on the surface of multiwalled carbon nanotubes at galvanostatic electrodeposition

Nickel nanoparticles are obtained by galvanostatic deposition on the surface of multiwalled carbon nanotubes. The growth kinetics and morphology of Ni nanoparticles for current densities j ranging from 0.01 to 5.00 A/dm² are investigated.     

Size effects in the hardness of fcc metals on micro- and nanoscales

The size effects in the hardness of three fcc metals, namely, Ni, Cu, and Al, are studied by micro- and nanoindentation, and the boundaries of regions with size effects of various types and the characters of these effects are determined.