Search Results - "Portales, H."

Probing atomic ordering and multiple twinning in metal nanocrystals through their vibrations by Portales, H, Goubet, N, Saviot, L, Adichtchev, S, Murray, D.B, Mermet, A, Duval, E, Pileni, M.-P

“…Control of nanocrystal (NC) crystallinity currently raises great interest because of its potential benefits in both physics modeling and technological…”
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CD8+ T Cells from Human Neonates Are Biased toward an Innate Immune Response by Galindo-Albarrán, Ariel O., López-Portales, Oscar H., Gutiérrez-Reyna, Darely Y., Rodríguez-Jorge, Otoniel, Sánchez-Villanueva, José Antonio, Ramírez-Pliego, Oscar, Bergon, Aurélie, Loriod, Béatrice, Holota, Hélène, Imbert, Jean, Hernández-Mendoza, Armando, Ferrier, Pierre, Carrillo-de Santa Pau, Enrique, Valencia, Alfonso, Spicuglia, Salvatore, Santana, M. Angélica

“…To better understand why human neonates show a poor response to intracellular pathogens, we compared gene expression and histone modification profiles of…”
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Acoustic vibrations of metal nanoparticles: high order radial mode detection by Nelet, A, Crut, A, Arbouet, A, Del Fatti, N, Vallée, F, Portalès, H, Saviot, L, Duval, E

“…The vibrational radial modes of silver nanospheres embedded in a glass matrix are investigated using a high sensitivity femtosecond pump-probe technique. The…”
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Protein complexes associated with β‐catenin differentially influence the differentiation profile of neonatal and adult CD8+ T cells by Hernández‐Acevedo, Gerson N., López‐Portales, Oscar H., Gutiérrez‐Reyna, Darely Y., Cuevas‐Fernández, Erick, Kempis‐Calanis, Linda A., Labastida‐Conde, Rosario G., Aguilar‐Luviano, Oscar B., Ramírez‐Pliego, Oscar, Spicuglia, Salvatore, Lino‐Alfaro, Bárbara, Chagolla‐López, Alicia, González‐de la Vara, Luis E., Santana, María Angélica

“…The canonical Wnt signaling pathway is a master cell regulator involved in CD8+ T cell proliferation and differentiation. In human CD8+ T cells, this pathway…”
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Investigation of the role of silver on spectroscopic features of Er3+-activated Ag-exchanged silicate and phosphate glasses by PORTALES, H, MATTARELLI, M, MONTAGNA, M, CHIASERA, A, FERRARI, M, MARTUCCI, A, MAZZOLDI, P, PELLI, S, RIGHINI, G. C

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Assessment of spectroscopic properties of erbium ions in a soda-lime silicate glass after silver–sodium exchange by Chiasera, A., Ferrari, M., Mattarelli, M., Montagna, M., Pelli, S., Portales, H., Zheng, J., Righini, G.C.

“…Spectroscopic properties of Ag/Er co-doped thin plates of silicate glass were investigated with the aim of assessing the effective role of silver as a…”
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Resonant Raman Scattering by quadrupolar vibrations of Ni-Ag Core-shell Nanoparticles by Portales, H., Saviot, L., Duval, E., Gaudry, M., Cottancin, E., Pellarin, M., Lerme, J., Broyer, M.

“…Low-frequency Raman scattering experiments have been performed on thin films consisting of nickel-silver composite nanoparticles embedded in alumina matrix. It…”
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Investigation of the role of silver on spectroscopic features of Er(3)(+)--activated Ag--exchanged silicate and phosphate glasses by Portales, H, Mattarelli, M, Montagna, M, Chiasera, A, Ferrari, M, Martucci, A, Mazzoldi, P, Pelli, S, Righini, G C

“…We present a spectroscopic investigation on Er/Ag co--doped platelets of silicate and phosphate glasses with the aim of assessing the effect of silver as a…”
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Sol–gel-derived Er-activated SiO2–HfO2 planar waveguides for 1.5μm application by Zampedri, L., Righini, G.C., Portales, H., Pelli, S., Nunzi Conti, G., Montagna, M., Mattarelli, M., Gonçalves, R.R., Ferrari, M., Chiasera, A., Bouazaoui, M., Armellini, C.

“…(100−x)SiO2–xHfO2 (x=10,20,30,40mol) planar waveguides, doped with 0.3mol% Er3+ ions were prepared by the sol–gel route, using dip-coating deposition on v-SiO2…”
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Aluminum effect on photoluminescence properties of sol-gel-derived Eu3+-activated silicate glasses by ALOMBERT-GOGET, G, GAUMER, N, OBRIOT, J, RAMMAL, A, CHAUSSEDENT, S, MONTEIL, A, PORTALES, H, CHIASERA, A, FERRARI, M

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Aluminum effect on photoluminescence properties of sol--gel--derived Eu(3)(+)--activated silicate glasses by Alombert-Goget, G, Gaumer, N, Obriot, J, Rammal, A, Chaussedent, S, Monteil, A, Portales, H, Chiasera, A, Ferrari, M

“…Eu2O3--Al2O3--SiO2 monolithic xerogels doped with 2000ppm Eu/Si and 5000ppm Eu/Si, were prepared with different Al/Eu molar ratios: (a) 0, (b) 0*25, (c) 0*5,…”
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Collective Surface Plasmon Resonances in Two-Dimensional Assemblies of Au and Ag Nanocrystals: Experiments and Discrete Dipole Approximation Simulation by Wei, J. J, Yang, P, Portalès, H, Albouy, P.-A, Pileni, M. P

“…The UV–visible absorption spectra of two-dimensional (2D) assemblies of Ag or Au nanocrystals (NCs) are measured in transmission at variable incidence angles…”
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Integrated optical amplifiers and microspherical lasers based on erbium-doped oxide glasses by Righini, G.C., Arnaud, C., Berneschi, S., Bettinelli, M., Brenci, M., Chiasera, A., Feron, P., Ferrari, M., Montagna, M., Nunzi Conti, G., Pelli, S., Portales, H., Siligardi, C., Speghini, A., Zampedri, L.

“…Er3+-doped glasses have been a subject of great interest in the recent years for their application in the areas of guided wave optical amplifiers and lasers…”
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Spectroscopic assessment of silica-titania and silica-hafnia planar waveguides by Almeida, R. M., Marques, A. C., Pelli, S., Righini, G. C., Chiasera, A., Mattarelli, M., Montagna, M., Tosello, C., Gonçalves, R. R., Portales, H., Chaussedent, S., Ferrari, M., Zampedri, L.

“…Silicate glasses remain the most investigated systems for optical planar waveguides, since they offer a reasonable solubility for rare-earth ions, they are…”
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Erbium-activated modified silica glasses with high 4I13/2 luminescence quantum yield by BHAKTHA, S. N. B, BOULARD, B, MATTARELLI, M, MONTAGNA, M, MONTEIL, A, MASER, E, PORTALES, H, VISHUNUBHATLA, K. C, CHAUSSEDENT, S, CHIAPPINI, A, CHIASERA, A, DUVAL, E, DUVERGER, C, ETIENNE, S, FERRARI, M, JESTIN, Y

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Resonance and composition effects on the Raman scattering from silver-gold alloy clusters by PORTALES, H, SAVIOT, L, DUVAL, E, GAUDRY, M, COTTANCIN, E, LERME, J, PELLARIN, M, BROYER, M, PREVEL, B, TREILLEUX, M

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Raman scattering by electron-hole excitations in silver nanocrystals by Portales, H., Duval, E., Saviot, L., Fujii, M., Sumitomo, M., Hayashi, S.

“…Raman scattering experiments from silver nanocrystals embedded in films of amorphous silica are reported. In addition to the low-frequency peak due to…”
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Investigation of the role of silver on spectroscopic features of Er 3+-activated Ag-exchanged silicate and phosphate glasses by Portales, H., Mattarelli, M., Montagna, M., Chiasera, A., Ferrari, M., Martucci, A., Mazzoldi, P., Pelli, S., Righini, G.C.

“…We present a spectroscopic investigation on Er/Ag co-doped platelets of silicate and phosphate glasses with the aim of assessing the effect of silver as a…”
Get full text

Aluminum effect on photoluminescence properties of sol–gel-derived Eu 3+-activated silicate glasses by Alombert-Goget, G., Gaumer, N., Obriot, J., Rammal, A., Chaussedent, S., Monteil, A., Portales, H., Chiasera, A., Ferrari, M.

“…Eu 2O 3–Al 2O 3–SiO 2 monolithic xerogels doped with 2000 ppm Eu/Si and 5000 ppm Eu/Si, were prepared with different Al/Eu molar ratios: (a) 0, (b) 0.25, (c)…”
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Sol-gel-derived Er-activated SiO2-HfO2 planar waveguides for 1.5mum application by Zampedri, L, Righini, G C, Portales, H, Pelli, S, Nunzi Conti, G, Montagna, M, Mattarelli, M, Goncalves, R R, Ferrari, M, Chiasera, A, Bouazaoui, M, Armellini, C

“…(100-x)SiO2-xHfO2 (x=10,20,30,40mol) planar waveguides, doped with 0.3mol% Er(3)(+)ions were prepared by the sol-gel route, using dip-coating deposition on…”
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