Results 71 to 80 of about 84,691 (149)

Endoneural fibroblasts isolation and culture

Acta Biológica Colombiana, 2004
Fibroblasts which are tissue-specific, constantly degrade and synthesize the different elements of the extra-cellular matrix (ECM), while at the same time remodel tissues that are being repaired.
Leslie Leal, Sandra Perdomo, Clara Spinel   +2 more
doaj  

Síntese e caracterização de espinélios à base de ferritas com gelatina como agente direcionador Synthesis and characterization of ferrite-base spinels with gelatin as directing agent

Cerâmica, 2011
As ferritas com estrutura tipo espinélio compreendem um grupo de materiais magnéticos muito bem estabelecidos. Contudo, melhoramentos e inovações continuam acontecendo visando novas aplicações e otimização das técnicas de preparação.
A. F. Costa, P. M. Pimentel, D. M. A. Melo, M. A. F. Melo, F. M. Aquino   +4 more
doaj   +1 more source

Synthesis of nickel zinc iron nanoparticles by coprecipitation technique

Materials Research, 2010
Nanoparticles nickel ferrite of size 6 - 8 nm, synthesized by the coprecipitation method with x varying from 0 to 1.0. The powder samples were characterized by XRD, VSM and FTIR.
Kandasamy Velmurugan, Vellaiyappan Sangli Karuppanan Venkatachalapathy, Sechassalom Sendhilnathan   +2 more
doaj   +1 more source

First-principles prediction of redox potentials in transition-metal compounds with LDA+U

, 2005
First-principles calculations within the Local Density Approximation (LDA) or Generalized Gradient Approximation (GGA), though very successful, are known to underestimate redox potentials, such as those at which lithium intercalates in transition metal ...
A. Van der Ven, C. A. Marianetti, D. Morgan, D. Morgan, F. Zhou, G. Ceder, G. Kresse, I. A. Courtney, K. Amine, M. Cococcioni, S. Okada, W. R. McKinnon   +11 more
core   +1 more source

Epitaxially stabilized iridium spinel oxide without cations in the tetrahedral site

, 2010
Single-crystalline thin film of an iridium dioxide polymorph Ir2O4 has been fabricated by the pulsed laser deposition of LixIr2O4 precursor and the subsequent Li-deintercalation using soft chemistry.
Hashizume, Daisuke, Kuriyama, Hiromichi, Matsuno, Jobu, Nakao, Aiko, Niitaka, Seiji, Ohsumi, Hiroyuki, Sugimoto, Kunihisa, Takagi, Hidenori, Takata, Masaki, Uchida, Masaya   +9 more
core   +1 more source

Síntese do espinélio MgAl2O4 via "sol-gel" Synthesis of MgAl2O4 spinel via "sol-gel"

Cerâmica, 2005
O espinélio aluminato de magnésio MgAl2O4 é um material que apresenta uma combinação de propriedades de grande interesse tecnológico, tais como alto ponto de fusão (2135 ºC), alta resistência ao ataque químico e ao choque térmico, baixa constante ...
A. L. Heck, S. R. Taffarel, R. Hoffmann, U. L. Portugal Jr., S. L. Jahn, E. L. Foletto   +5 more
doaj   +1 more source

The Influence of Milling Conditions on the Structure and Properties of Fe₃O₄ Nanoparticles for Biomedical Applications

Crystals
In this work, a new two-stage scalable method for the synthesis of magnetite nanoparticles for biomedical applications is proposed. The influence of the milling time, medium, and surfactants on the formation of the structure, magnetic, and functional ...
Vladislav A. Mikheev, Timur R. Nizamov, Polina I. Nikolenko, Anna V. Ivanova, Alexander I. Novikov, Irina V. Dorofievich, Alexey S. Lileev, Maxim A. Abakumov, Igor V. Shchetinin   +8 more
doaj   +1 more source

Effect of MgCl2 Addition on the Kinetics of MA Spinel Formation

Journal of Advanced Materials in Engineering, 2014
In this paper, the effect of MgCl2 addition on the kinetics of MA spinel formation was investigated. For this purpose, the stoichiometric mixture of MgCO3 and calcined aluminum was calcined at 1100 °C for 1 hr.
S. Otroj, F. Mohammadi, M.R. Nilforushan
doaj  

Site-specific spin crossover in Fe$_{2}$TiO$_{4}$ post-spinel under high pressures to near a megabar

, 2017
X-ray diffraction studies to ~90 GPa at room temperature show that Fe$_{2}$TiO$_{4}$ ferrous inverse spinel undergoes the following sequence of structural transitions : cubic (Fd3m) to tetragonal (I41/amd)to orthorhombic(Cmcm) to orthorhombic(Pmma),at ...
Greenberg, E., Hearne, G. R., Itié, J-P., Layek, S., Levy, D., Pasternak, M. P., Rozenberg, G. Kh., Xu, W. M.   +7 more
core   +1 more source

Cooperative Jahn–Teller effect and the role of strain in the tetragonal-to-cubic phase transition in MgxCu1 − xCr2O4

IUCrJ, 2016
Temperature and composition dependences of the I41/amd → Fd\bar 3m phase transition in the MgxCu1 − xCr2O4 spinel solid solution, due to the melting of the cooperative Jahn–Teller distortion, have been studied by means of single-crystal X-ray diffraction.
Serena C. Tarantino, Mattia Giannini, Michael A. Carpenter, Michele Zema   +3 more
doaj   +1 more source