Journal ArticleDOI
Synthesis and structure of copper nanoparticles and their antiinfection properties
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In this paper, copper nanoparticles localized on the surface of cotton fabric are synthesized and the structure and composition of the particles are determined by EXAFS, TEM, EPR, and XRF.Abstract:
Copper nanoparticles localized on the surface of cotton fabric are synthesized. The structure and composition of the particles are determined by EXAFS, TEM, EPR, and XRF. The nanoparticles obtained are suggested to have a core shell structure. The study shows that copper is distributed in the fabric in the form of nanoparticles associated with fragments of macromolecules, on one hand, and in the form of nanoparticle conglomerates on the surfaces of the filaments of fibers, on the other hand. Modification of natural fabrics by copper nanoparticles results in complete destruction of Epidermophyton colonies and suppresses growth of Candida colonies, which makes it possible to apply such fabric in treatment of fungal diseases and in antiseptic treatment and healing of septic wounds.read more
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Magnesium and silver doped CaO–Na2O–SiO2–P2O5 bioceramic nanoparticles as implant materials
Kulwinder Kaur,Karanvir Singh,Vikas Anand,Gaurav Bhatia,Sukhdev Singh,Harpreet Kaur,Daljit Singh Arora +6 more
TL;DR: The role of silver along with magnesium on the properties of above mentioned bioceramics has been investigated by using X-Ray Diffraction, Transmission Electron Microscopy, Fourier Transform Infrared, Brunauer-Emmett-Teller and Atomic Absorption Spectroscopy techniques as discussed by the authors.
Journal ArticleDOI
A simple robust method of synthesis of copper-silver core-shell nano-particle: evaluation of its structural and chemical properties with anticancer potency.
TL;DR: The more detailed study on the cytotoxicity of the CuAg-NP on the HepG2 cell line revealed that the particles caused cell cycle arrest in a G2/M phase, depolarization of mitochondrial membrane potential, translocation of phosphatidylserine residues from inner to outer leaflets of cell membrane and DNA degradation; these phenomena confirmed that the NP-induced cell death was apoptotic in nature.
Journal ArticleDOI
Cryogel synthesis and solid state reactivity of NdCaCoO4
Oleg A. Shlyakhtin,G. N. Mazo,S. A. Malyshev,L.N. Kolchina,A.V. Knotko,A. S. Loktev,Alexey G. Dedov +6 more
TL;DR: In this paper, the synthesis of NdCaCoO 4 precursors was performed by coprecipitation followed by freeze drying, and the thermal decomposition of the freeze-dried product at T ǫ = 800-°C results in the formation of finely grained NdCACoO4 while at higher temperatures the appearance of perovskite-like (Nd,Ca)CoO 3-δ among reaction products is observed.
Journal ArticleDOI
Comparative analysis of NdCaCoO4 phase formation from cryogel and from solid state precursors
S. A. Malyshev,Oleg A. Shlyakhtin,G. N. Mazo,Alexey V. Garshev,Andrey V. Mironov,A. S. Loktev,Alexey G. Dedov +6 more
TL;DR: In this article, the phase formation processes during thermal processing of precursors were investigated by in-situ X-ray diffraction analysis, Rietveld refinement and energy dispersive Xray analysis of reaction products and intermediates.
References
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Book
Phase Transitions and Critical Phenomena
TL;DR: The field of phase transitions and critical phenomena continues to be active in research, producing a steady stream of interesting and fruitful results as discussed by the authors, and the major aim of this serial is to provide review articles that can serve as standard references for research workers in the field.
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Phase Transitions and Critical Phenomena
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Electron Spin Resonance
TL;DR: In this paper, a few more concepts that are important to the study of electron spin resonance have been introduced, but which are not encountered in the field of nuclear magnetic resonance, such as the quenching of orbital angular momentum and the magnetic coupling of the nuclear spin to that of the electron.
Journal ArticleDOI
Experiments on simple magnetic model systems
L.J. de Jongh,A.R. Miedema +1 more
TL;DR: In this article, a review of the theoretical and experimental results obtained on simple magnetic model systems on magnetic lattices of dimensionality 1, 2, and 3 is presented, with particular attention paid to the approximation of these model systems in real crystals, viz how they can be realized or be expected to exist in nature.