Paula C. Angelomé

Vanadium Oxide Thin Films via the Epoxide Route : Tailoring Oxide Properties through Substrate and Thermal Treatment

Micaela Campo, Gustavo M. Segovia, Bernardo P. Sievers, Martín Mizrahi et autres

This work presents a novel synthetic method to produce vanadium oxides thin films with different crystallographic phases and temperature sensitivities, by using a single precursor solution and different processing conditions. The Epoxide Route was employed to homogeneously produce a V(III) hydroxide sol, …

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Photoclick Thiol‐Ene Reaction as a Tool to Control Linking Between Gold Particles and Silica Surfaces

Santiago Poklepovich‐Caride, Gonzalo Zbihlei, Cristina Elena Hoppe, Paula C. Angelomé et autres

Abstract The control over the positioning of optically active nanoparticles (NPs) on other materials can be crucial for designing multicomponent devices with defined optical properties. In this work, a selective anchoring method based on the photochemical radical thiol‐ene addition (PRTEA) click chemistry …

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Selective functionalization of mesoporous UV photonic crystals for the detection of organic vapors

Josefina Morrone, Paula C. Angelomé, Andrés Zelcer, M. Cecilia Fuertes

Mechanically robust and chemically stable responsive photonic crystals (PC), featuring a photonic band gap centered in the UV region and exhibiting very high reflectivities, were fabricated by alternate deposition of mesoporous zirconia and silica thin films. These multilayered structures were synthesized via …

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Mesoporous Titania Thin Films‐Gold Nanoparticles Composites: A Comparative Study about the Role of Synthesis Variables on the Catalytic Response

Paula F. Borovik, Paula C. Angelomé

Abstract In this work, the preparation of catalysts based on spherical Au nanoparticles and mesoporous TiO2 thin films is presented, along with a systematic analysis of the effect of different synthetic variables on the catalytic activity of the composites. The Au nanoparticles …

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Diseño, síntesis y caracterización de películas delgadas apiladas jerárquicamente porosas basadas en MOFS y óxidos mesoporosos ordenados

Melina Arcidiacono, Juan Alejandro Allegretto, Omar Azzaroni, Paula C. Angelomé et autres

Las capas alternas delgadas submicrométricas de materiales con un contraste de índice de refracción adecuado se utilizan ampliamente para el ensamblaje de sensores basados en la capacidad de respuesta a estímulos de estos cristales fotónicos unidimensionales (PC). Un nuevo grado de complejidad …

Degradation of Mesoporous Silica Materials in Biological Milieu: The Gateway for Therapeutic Applications

Sergio Enrique Moya, Raquel Ruiz Hernández, Paula C. Angelomé

Since early developments in the field of mesoporous materials, mesoporous silica has attracted large interest in drug delivery, as they display an ordered array of pores with diameters ranging from 2 to 50 nm, which can be loaded with drugs. Mesoporous silica …

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Probe Beam Deflection Study of Au Nanoparticles Supported Into TiO2 Mesoporous Films

Rusbel Coneo-Rodríguez, Paula C. Angelomé, Gabriel A. Planes, Cesar Alfredo Barbero et autres

Abstract Mesoporous thin films modified with nanoparticles of metal (Au) have been used for the fabrication of an ultra‐microelectrode array (UMEA). For the first time, UMEAs were studied using probe beam deflection (PBD) and cyclic voltammetry. The study was carried out using …

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In Situ SAXS Study of the Formation of Aluminum Hydroxide-Based Hydrogels with Excellent Optical Properties

Gustavo M. Segovia, P. C. Rivas, Mercedes Perullini, Matı́as Jobbágy et autres

In this work, the mild and homogeneous alkalization strategy known as the epoxide route was employed for the synthesis of aluminum hydroxide-based hydrogels. The formation of such materials was in situ analyzed through pH and conductivity measurements and, particularly, careful analysis of …

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One‐Pot Synthesis of Gold Nanoparticles and Aluminum Hydroxide Hydrogels‐Based Nanocomposites with Modulated Optical Properties

Gustavo M. Segovia, Cristián Huck‐Iriart, Víctor Oestreicher, Paula C. Angelomé

Abstract In this work, the one‐pot synthesis of composites constituted by gold nanoparticles (AuNPs) and aluminum hydroxide hydrogels (AlHG) by employing the Epoxide Route is presented. To modulate the optical properties of the final composites, different anions (X= , , and ) …

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One-pot synthesis of gold nanoparticles and aluminum hydroxide hydrogels-based composites with modulated optical properties

Gustavo M. Segovia, Cristián Huck‐Iriart, Víctor Oestreicher, Paula C. Angelomé

In this work, the one-pot synthesis of composites constituted by gold nanoparticles (AuNPs) and aluminum hydroxide hydrogels (AlHG) using the Epoxide Route as homogenous alkalization strategy is presented. To modulate the optical properties of the final composites, halides (X = Cl^-, Br^- …

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Stable Photopolymerizable Resins Modified with Functionalized Silica-Coated Gold Nanostructures for the Fabrication of Optically Clear 3D Objects with Remote Photothermal Activation

Maria Jazmín Penelas, Walter F. Schroeder, Gustavo Francisco Arenas, Paula C. Angelomé et autres

A compatibilization strategy, based on the synthesis of methacrylate-functionalized gold core–silica shell nanostructures, was used for the formulation of stable, optically clear, printable, and photothermally responsive methacrylate resins. The rational design of the shell enclosing the metallic core was shown to be …

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Design, synthesis and characterization of hierarchical porous stacked thin films based on MOFs and ordered mesoporous oxides

Melina Arcidiácono, Juan A. Allegretto, Omar Azzaroni, Paula C. Angelomé et autres

Integration of mesoporous thin films and metal–organic frameworks as stacked bilayers, towards hierarchical porous 1D photonic crystals.

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