Search Results - "Figueiredo Neto, A. M."

Lyotropic mixture made of potassium laurate/1-undecanol/K2SO4/water presenting high birefringences and large biaxial nematic phase domain: a laser conoscopy study by Akpinar, E., Reis, D., Figueiredo Neto, A. M.

“…The lyotropic liquid crystalline quaternary mixture made of potassium laurate (KL), potassium sulphate, 1-undecanol and water was investigated by experimental…”
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Electric response of cells containing ferrofluid particles by Antonova, A.M., Barbero, G., Batalioto, F., Figueiredo Neto, A.M., Parekh, K.

“…The Poisson-Nernst-Planck model for electrolytic solutions is generalized to take into account the difference in the diffusion coefficients and in the electric…”
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On the coexistence of uniaxial nematic phases in the lyotropic mixture sodium dodecyl sulphate/1-decanol/D2O by Oliveira-Filho, A. G., Akpinar, E., Reis, D., Neto, A. M. Figueiredo

“…Previously examined lyotropic mixtures sodium dodecyl sulphate (SDS) - 1-decanol (DeOH) - D 2 O were prepared in four different molar ratios, M = [D 2…”
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Liquid crystalline cellulosic elastomers: free standing anisotropic films under stretching by Sena, C., Godinho, M. H., Oliveira, C. L. P., Figueiredo Neto, A. M.

“…The structure and local ordering of 1,6-hexamethylenediisocyanate-(acetoxypropy1) cellulose (HDI-APC) liquid crystalline elastomer thin films are investigated…”
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Tricritical-like behavior of the nonlinear optical refraction at the nematic-isotropic transition in the E7 thermotropic liquid crystal by Lenart, V. M., Gómez, S. L., Bechtold, I. H., Figueiredo Neto, A. M., Salinas, S. R.

“…We use Z -scan technique to investigate the nonlinear optical response of the thermotropic liquid crystal E7 in the neighborhood of the nematic-isotropic phase…”
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In vitro evaluation of magnetic fluid hyperthermia therapy on breast cancer cells using monodispersed Mn0.5Zn0.5Fe2O4 nanoflowers by Patel, Hima, Parekh, Kinnari, Fernel Gamarra, Lionel, Bustamante Mamani, Javier, da Hora Alves, Arielly, Figueiredo Neto, A.M.

“…•Magnetic fluid hyperthermia (MFH) of nanoflowers based dispersion and it’s in vitro study is reported.•The nanoclusters were characterized using XRD, TEM,…”
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Optimized Mn0.5Zn0.5Fe2O4 nanoflowers based magnetic fluids for potential biomedical applications by Patel, Hima, Upadhyay, R.V., Parekh, Kinnari, Reis, Dennys, Oliveira, Cristiano L.P., Figueiredo Neto, A.M.

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Thermodiffusion in a multicomponent lyotropic mixture in the vicinity of the critical micellar concentration by using the Z -scan technique by Santos, M P, Gómez, S L, Bringuier, E, Figueiredo Neto, A M

“…Thermodiffusion in a lyotropic mixture of water and potassium laurate is investigated by means of an optical technique (Z scan) distinguishing the index…”
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Random Energy Barrier Model for AC Electrode Conductivity by Batalioto, F, Figueiredo Neto, A. M, Barbero, G

“…We investigate the electric response of an electrolytic cell of water and KCl, limited by gold electrodes, to derive information on the role of the electrodes…”
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Free-standing urethane/urea elastomer films undoped and doped with ferro-nano-particles by Sena, C., Godinho, M. H., Sebastião, P. J., Sousa, D., Figueiredo Neto, A. M.

“… We report on an experimental study of the structures presented by urethane/urea elastomeric films without and with ferromagnetic nanoparticles incorporated…”
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Deviations from linearity in impedance spectroscopy measurements confirmed by Kramers-Kronig analysis by Barbero, G., Batalioto, F., Neto, A.M. Figueiredo, Lelidis, I.

“…We investigate the electric response of a kerosene cell containing magnetic nanoparticles. The cell is submitted to an external potential difference and its…”
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Measurement of the impedance of aqueous solutions of KCl: An analysis using an extension of the Poisson-Nernst-Planck model by Duarte, A. R., Batalioto, F., Barbero, G., Figueiredo Neto, A. M.

“…We investigate the frequency dependence of the real and imaginary parts of the electric impedance of a cell with titanium electrodes, filled with aqueous…”
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Influence of nanoparticle size on the nonlinear optical properties of magnetite ferrofluids by Espinosa, D, Carlsson, L B, Neto, A M Figueiredo, Alves, S

“…The nonlinear index of refraction (n_{2}) and the two-photon absorption coefficient (β) of water-based ferrofluids made of magnetite nanocrystals of different…”
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Electric response of cells of ferrofluids to ac external electric field: dependence on the concentration of magnetic particles and on the electrodes by Batalioto, F., Gonçalves, E.S., Neto, A.M. Figueiredo, Barbero, G.

“…The electric response of samples of kerosene containing magnetic particles to an ac electric field is experimentally investigated by means of the impedance…”
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Magnetic, structural and cation distribution studies on FeO · Fe (2-x) Nd xO3 (x = 0.00, 0.02, 0.04, 0.06 and 0.1) nanoparticles by Araujo, W. W. R., Araujo, J. F. D. F., Oliveira, C. L. P., Brito, G. E. S., Figueiredo Neto, A. M.

“… We synthesized and characterized the colloidal suspensions of FeO · Fe ( 2 - x ) Nd x O 3 nanoparticles with x = 0.00, 0.02, 0.04, 0.06 and 0.1. The effect…”
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A survey on the phase diagram of the system sodium dodecyl sulphate/1-decanol /D2O concerning an eventual coexistence of uniaxial nematic phases by Oliveira-Filho, A. G., Akpinar, E., Reis, D., Figueiredo Neto, A. M.

“…We examine an eventual coexistence of discotic ( ) and calamitic ( ) nematic uniaxial phases in the sodium dodecyl sulphate (SDS)/1-decanol (DeOH)/D 2 O…”
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Thermodiffusion in positively charged magnetic colloids: influence of the particle diameter by Sehnem, A L, Aquino, R, Campos, A F C, Tourinho, F A, Depeyrot, J, Figueiredo Neto, A M

“…The Soret coefficient (ST) of positively charged magnetic colloids was measured as a function of the nanoparticles' diameter. The Z-scan technique and the…”
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Investigation of the sign of the Soret coefficient in different ionic and surfacted magnetic colloids using forced Rayleigh scattering and single-beam Z -scan techniques by Alves, S., Demouchy, G., Bee, A., Talbot, D., Bourdon, A., Neto, A. M. Figueiredo

“…The sign of the Soret coefficient S T of a large set of ionic magnetic colloids (ionic ferrofluids (IFFs)) and surfacted magnetic colloids (surfacted…”
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Thermal Lens Phenomenon Studied by the Z-Scan Technique: Measurement of the Thermal Conductivity of Highly Absorbing Colloidal Solutions by Sehnem, A. L., Espinosa, D., Gonçalves, E. S., Figueiredo Neto, A. M.

“…We discuss the thermal lens phenomenon in high-absorbing colloidal systems, studied by using the Z-scan technique. The characteristics of the experimental…”
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Relaxation time for the ionic current in a nematic cell under a large electric field by Barbero, G, Figueiredo Neto, A M, Freire, F C M, Le Digabel, J

“…We evaluate the ionic relaxation time of a nematic cell subjected to a potential difference, V0 , very large with respect to VT=KBT/q=0.025 V, where KBT is the…”
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