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Mostrando publicaciones 1-6 de 6

  • Effect of functionalized silica nanoparticles on the mass transfer process in active PLA nanocomposite films obtained by supercritical impregnation for sustainable food packaging 

    Sepulveda, Javiera; Villegas, Carolina; Torres, Alejandra; Vargas, Esteban; Rodriguez, Francisco; Baltazar, Samuel; Prada, Alejandro; Rojas, Adrian; Romero, Julio; Faba, Simon; Galotto, María J. (2020)
    Nanocomposite films based on PLA with 1.0 % w/w silica nanoparticles (NP) and surface-functionalized silica nanoparticles with lactic acid (NP-LA), respectively, were obtained by extrusion process. Subsequently, cinnamaldehyde ...

  • Formation of hollow gold nanocrystals by nanosecond laser irradiation 

    González-Rubio, Guillermo; Milagres de Oliveira, Thais; Albrecht, Wiebke; Díaz-Núñez, Pablo; Castro-Palacio, Juan C.; Prada, Alejandro; González, Rafael I.; Scarabelli, Leonardo; Bañares, Luis; Rivera, Antonio; Liz-Marzán, Luis M.; Peña-Rodríguez, Ovidio; Bals, Sara; Guerrero-Martínez, Andrés (2020)
    The irradiation of spherical gold nanoparticles (AuNPs) with nanosecond laser pulses induces shape transformations yielding nanocrystals with an inner cavity. The concentration of the stabilizing surfactant, the use of ...

  • Hollow gold nanoparticles produced by femtosecond laser irradiation 

    Castro-Palacio, Juan C.; Ladutenko, Konstantin; Prada, Alejandro; González-Rubio, Guillermo; Díaz-Núñez, Pablo; Guerrero-Martínez, Andrés; Fernández de Córdoba, Pedro; Kohanoff, Jorge; Perlado, José M.; Peña-Rodríguez, Ovidio; Rivera, Antonio (2020)
    Metallic hollow nanoparticles exhibit interesting optical properties that can be controlled by geometrical parameters. Irradiation with femtosecond laser pulses has emerged recently as a valuable tool for reshaping and ...

  • Molecular dynamics simulation of surface phenomena due to high electronic excitation ion irradiation in amorphous silica 

    Prada, Alejandro; Sánchez-Pérez, Francisco; Bailly-Grandvaux, Mathieu; Bringa, Eduardo; Caturla, María José; Perlado, José M.; Kohanoff, Jorge; Peña-Rodríguez, Ovidio; Rivera, Antonio (2023)
    We studied by means of an atomistic model based on molecular dynamics the thermal evolution of surface atoms in amorphous silica under high electronic excitation produced by irradiation with swift heavy ions. The model was ...

  • Nanoporous amorphous carbon with exceptional ultra-high strength 

    Castillo-Castro, Daniel; Correa, Felipe; Aparicio, Emiliano; Amigo, Nicolás; Prada, Alejandro; Figueroa, Juan; González, Rafael I.; Bringa, Eduardo; Valencia, F. (2023)
    Nanoporous materials show a promising combination of mechanical properties in terms of their relative density; while there are numerous studies based on metallic nanoporous materials, here we focus on amorphous carbon with ...

  • Synthesis of hollow bimetallic nanoparticles from ultrafast laser irradiation: an atomistic simulation study 

    Prada, Alejandro; Valencia, F.; Ramirez, Max; Varas, Alejandro; Rogan, José (2023)
    Femtosecond laser irradiation in Au@Ag, Ag@Au core@shell, and Au–Ag Janus-like nanoparticles are investigated using molecular dynamics simulations. Our results show that the morphology of Au@Ag core–shell and Au–Ag Janus-like ...