Rinkevich, A. B.;Korolev, A. V.;Samoilovich, M. I.;Perov, D. V.;Nemytova, O. V.
来源期刊：The Physics of Metals and Metallography
年/卷/期：2018 / 119 / 2
The magnetic properties of metamaterials based on an opal matrix with transition-metal (iron, nickel, cobalt) particles have been studied. Magnetization curves and magnetic hysteresis loops have been measured and the dependences of real and imaginary parts of magnetization have been determined using the dynamic ac susceptibility measuring procedure. Structural studies of metamaterials have been performed. The saturation magnetization and coercive force of the studied metamaterials have been found to depend weakly on the temperature. The temperature dependence of magnetic susceptibility at a temperature above 30 K can be described adequately by Curie-Weiss law and, at lower temperature, deviates from the law.
Santos-Moriano, P.;Fernandez-Arrojo, L.;Mengibar, M.;Belmonte-Reche, E.;Penalver, P.;Acosta, F. N.;Ballesteros, A. O.;Morales, J. C.;Kidibule, P.;Fernandez-Lobato, M.;Plou, F. J.
来源期刊：Biocatalysis and Biotransformation.
年/卷/期：2018 / 36 / 1/6
Among several commercial enzymes screened for chitosanolytic activity, Neutrase 0.8L (a protease from Bacillus amyloliquefaciens) was selected in order to obtain a product enriched in deacetylated chitooligosaccharides (COS). The hydrolysis of different chitosans with this enzyme was followed by size exclusion chromatography (SEC-ELSD), mass spectrometry (ESI-Q-TOF), and high-performance anion-exchange chromatography with pulsed amperometric detection (HPAEC-PAD). Neutrase 0.8L converted 10 g/L of various chitosans into mostly deacetylated oligosaccharides, yielding approximately 2.5 g/L of chitobiose, 4.5 g/L of chitotriose, and 3 g/L of chitotetraose. We found out that the neutral protease was not responsible for the chitosanolytic activity in the extract, while it could participate in the deacetylating process. The synthesized COS were tested in vitro for their neuroprotective (toward human SH-S5Y5 neurons) and anti-inflammatory (in RAW macrophages) activities, and compared with other functional ingredients, namely fructooligosaccharides.
(EP3199567) A tire including a tire skeleton body that is made of a resin material containing a polyamide-based thermoplastic elastomer and has a ring shape, wherein the polyamide-based thermoplastic elastomer includes a hard segment, a soft segment consi
India’s provisional steel consumption in 2018 increased 9%on year to 96.27 mt, from 88.69 mt, data from Joint PlantCommittee (JPC) shows.The country’s steel consumption in 2017 was up 6% on year,from 83.53 mt.The higher growth in 2018 steel consumption was largelydriven by a surge in domestic demand due to continued focusof the government to pump up in money on infrastructureprojects and slight improvement in construction activity.