Zobrazeno 1 - 10
of 321
pro vyhledávání: '"Goya, G."'
Autor:
Fuentes-García, J. A., Santoyo-Salzar, J., Rangel-Cortes, E., Goya, G. F., Cardozo-Mata, V., Pescador-Rojas, J. A.
Publikováno v:
Ultrasonics Sonochemistry, Volume 70, 2021, pp 105274
In this work, optimized size distribution and optical properties in colloidal synthesis of gold nanoparticles (GNPs) were obtained using a proposed ultrasonic Tuerkevich-Frens method. The effect of three ultrasound (20 kHz) irradiation powers has bee
Externí odkaz:
http://arxiv.org/abs/2102.06885
Investigations over half a century have indicated that mechanical forces induce neurite growth - with neurites elongating at a rate of 0.1-0.3{\mu}mh^{-1} per pico-Newton (pN) of applied force - when mechanical tension exceeds a threshold, with this
Externí odkaz:
http://arxiv.org/abs/1810.08362
Autor:
Coaquira, L. León Fénix J. A. H., Martínez, M. A. R., Goya, G. F., Mantilla, J., Sousa, M. H., Valladares, L. de los Santos, Barnes, C. H. W., Morais, P. C.
Publikováno v:
Sci. Reps. 2017. 7:41732
We present a systematic study of core-shell Au/Fe_3O_4 nanoparticles produced by thermal decomposition under mild conditions. The morphology and crystal structure of the nanoparticles revealed the presence of Au core of = (6.9\pm 1.0) nm surround
Externí odkaz:
http://arxiv.org/abs/1707.06099
Publikováno v:
European Journal of Inorganic Chemistry, 2015, 4524; 4531
Virtually all clinical applications of magnetic nanoparticles (MNPs) require the formulation of biocompatible, water-based magnetic colloids. For magnetic hyperthermia, the requirements also include a high colloidal stability against precipitation an
Externí odkaz:
http://arxiv.org/abs/1609.05172
Autor:
Torres, T. E., Lima Jr., E., Mayoral, A., Ibarra, A., Marquina, C., Ibarra, M. R., Goya, G. F.
Publikováno v:
J. Appl. Phys. 118, 183902 (2015)
We report a systematic study on the structural and magnetic properties of Co_{x}Fe_{3-x}O_{4} magnetic nanoparticles with sizes between $5$ to $25$ nm, prepared by thermal decomposition of Fe(acac)_{3} and Co(acac)_{2}. The large magneto-crystalline
Externí odkaz:
http://arxiv.org/abs/1507.02711
Induced effects by direct exposure to ionizing radiation (IR) are a central issue in many fields like radiation protection, clinic diagnosis and oncological therapies. Direct irradiation at certain doses induce cell death, but similar effects can als
Externí odkaz:
http://arxiv.org/abs/1506.01142
Publikováno v:
Biomaterials, Volume: 35 Issue: 24, p.6389 (2014)
Nanoparticles (NPs) engineered for biomedical applications are meant to be in contact with protein-rich physiological fluids. These proteins are usually adsorbed onto the NP surface, forming a swaddling layer called protein corona that influences cel
Externí odkaz:
http://arxiv.org/abs/1403.3889
Publikováno v:
J. Phys. Condens. Matter 8 (1996) 4529,4537
R2BaMO5 (R = Gd, Y and M = Cu, Zn) oxides have been studied by specific heat, dc magnetic susceptibility, and electron paramagnetic resonance (EPR). For one member of the series without magnetic moment at M, namely Gd2BaZnO5, measurements reveal long
Externí odkaz:
http://arxiv.org/abs/1302.6327
Publikováno v:
Applied Physics A-Materials Science & Processing Volume: 80 Issue: 7 2005 Pages: 1523-1526
We present results on structural and magnetic properties of highly crystalline alpha-Fe2O3 nanoparticles of average size ~200 nm, synthesized from a novel sol-gel method using metal alkoxide precursor. These particles are multi-domain, showing the we
Externí odkaz:
http://arxiv.org/abs/1302.6321
Autor:
Goya, G. F., Rechenberg, H. R.
Publikováno v:
ANOSTRUCTURED MATERIALS Volume: 10 Issue: 6 Pages: 1001-1011 Published: AUG 1998
We present X-ray diffraction (XRD), M\"ossbauer spectroscopy (MS) and d.c. magnetization measurements performed on ball-milled CuFe2O4 samples. The average particle size was found to decrease to the nanometer range after t=15 min of milling. Room
Externí odkaz:
http://arxiv.org/abs/1302.5876