Exploració per autor "Rodríguez Martínez, Ángel"
Ara es mostren els items 21-40 de 79
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Development of microstructured zeolite films as highly accessible catalytic coatings for microreactors
Urbiztondo Castro, Miguel Ángel; Valera Cano, Enrique Andrés; Todorov Trifonov, Trifon; Alcubilla González, Ramón; Irusta Alderete, Silvia; Pina Iritia, María Pilar; Rodríguez Martínez, Ángel; Santamaria Ramiro, Jesus (2007-08-15)
Article
Accés restringit per política de l'editorialRegular structures of SiO2 microneedles and Si micromonoliths have been formed using processing methods similar to those used in the microelectronics field; then these structures have been used as supports for zeolite ... -
Effects of symmetry reduction in two-dimensional square and triangular lattices
Todorov Trifonov, Trifon; Marsal, L F; Rodríguez Martínez, Ángel; Pallarès Marzal, Josep; Alcubilla González, Ramón (2004-06)
Article
Accés restringit per política de l'editorialWe investigate the absolute photonic band gap (PBG) formation in two-dimensional (2-D) photonic crystals designed using symmetry reduction approach. The lattice symmetry, shape and orientation of dielectric scatterers ... -
Electrical transport and impedance analysis of Au/porous silicon thin films
Fonthal, Faruk; Goyes, C; Rodríguez Martínez, Ángel (IEEE Press. Institute of Electrical and Electronics Engineers, 2011)
Text en actes de congrés
Accés restringit per decisió de l'autorIn order to obtain electronic devices based on PS/p-Si structure, we present a study the AC conductivity and Thermo-electrical behavior of Porous Silicon (PS) layers prepared by electrochemical etching in p-type ... -
Emissive properties of SiO2 thin films through photonic windows
Hernández García, David; Garin Escriva, Moises; Todorov Trifonov, Trifon; Rodríguez Martínez, Ángel; Alcubilla González, Ramón (2012-02)
Article
Accés obert -
Empirical demonstration of CO2 detection using macroporous silicon photonic crystals as selective thermal emitters
Cardador Maza, David; Segura García, Daniel; Deriziotis, Ioannis; Garin Escriva, Moises; Llorca Piqué, Jordi; Rodríguez Martínez, Ángel (2019-09-15)
Article
Accés obertThis study describes the detection of CO2 using macroporous silicon photonic crystals as thermal emitters. It demonstrates that the reduction of structural nonhomogeneities leads to an improvement of the photonic crystals’ ... -
Examen Final
Altet Sanahujes, Josep; Bermejo Broto, Sandra; Fernández Chimeno, Mireya; Martín García, Isidro; Orpella García, Alberto; Ortega Villasclaras, Pablo Rafael; Prat Viñas, Lluís; Puigdollers i González, Joaquim; Rodríguez Martínez, Ángel; Voz Sánchez, Cristóbal (Universitat Politècnica de Catalunya, 2013-01-08)
Examen
Accés restringit a la comunitat UPC -
Examen Final
Bermejo Broto, Sandra; Fernández Chimeno, Mireya; Guede Fernández, Federico; Martín García, Isidro; López González, Juan Miguel; Ortega Villasclaras, Pablo Rafael; Puigdollers i González, Joaquim; Rodríguez Martínez, Ángel; Vargas Drechsler, Manuel; Voz Sánchez, Cristóbal (Universitat Politècnica de Catalunya, 2019-01-15)
Examen
Accés restringit a la comunitat UPC -
Fabrication of flexible interdigitated µ-electrodes (FIDµEs) for the development of a conductimetric immunosensor for atrazine detection based on antibodies labelled with gold nanoparticles
Valera Cano, Enrique Andrés; Muñiz, David; Rodríguez Martínez, Ángel (2010)
Article
Accés restringit per política de l'editorialThe present paper describes a simple and low-cost method for the fabrication of mechanically flexible interdigitated μ-electrodes (FIDμEs) and its application as immunosensor. FIDμEs consist of two coplanar non-passivated ... -
Fabrication of silicon oxide microneedles from macroporous silicon
Rodríguez Martínez, Ángel; Molinero, D; Valera Cano, Enrique Andrés; Todorov Trifonov, Trifon; Marsal, L F; Pallarès Marzal, Josep; Alcubilla González, Ramón (2005-04)
Article
Accés restringit per política de l'editorialThis paper presents a novel technique for silicon dioxide (SiO2) microneedle fabrication. Microneedles are hollow microcapillaries with tip diameters in the range of micrometers. They can be used in the fabrication of ... -
Fabrication of two- and three-dimensional photonic crystals by electrochemical etching of silicon
Todorov Trifonov, Trifon; Marsal, L F; Rodríguez Martínez, Ángel; Pallarès Marzal, Josep; Alcubilla González, Ramón (2005-05)
Article
Accés restringit per política de l'editorialThis paper reports on the fabrication of two-dimensional macropore arrays by electrochemical etching of silicon. We describe some critical effects accompanying the etching process that can generate imperfections in the ... -
First use of macroporous silicon loaded with catalyst film for a chemical reaction: a microreformer for producing hydrogen from ethanol steam reforming
Llorca Piqué, Jordi; Casanovas Grau, Albert; Todorov Trifonov, Trifon; Rodríguez Martínez, Ángel; Alcubilla González, Ramón (2008-04-25)
Article
Accés restringit per política de l'editorialMacroporous silicon with millions of parallel microchannels per square centimeter can be used as a micromonolithic support for high-speed catalysis in miniaturized systems, opening a new and exciting field of research and ... -
High aspect ratio silicon dioxide pillars
Todorov Trifonov, Trifon; Rodríguez Martínez, Ángel; Servera, F; Marsal, L F; Pallarès Marzal, Josep; Alcubilla González, Ramón (2005-06)
Article
Accés restringit per política de l'editorialThis article describes the benefits of including cross-layer information in the scheduling mechanism of a UMTS downlink channel. In particular, the information obtained from the fast power control algorithm is used to ... -
High yield hydrogen production enabled by macroporous silicon monoliths
Vega Bru, Didac; Jiménez Divins, Nuria; Todorov Trifonov, Trifon; Rodríguez Martínez, Ángel; Llorca Piqué, Jordi (Phantoms Foundation, 2023)
Comunicació de congrés
Accés restringit per política de l'editorialA macroporous silicon (MPS) membrane of 210 µm thickness was functionalized and evaluated for hydrogen production by steam reforming of various fuels. Performance is comparable to conventional reactors, but in a much ... -
High-density capacitor devices based on macroporous silicon and metal electroplating
Vega, Didac; Reina Marsinyach, Jordi; Pavón Urbano, Ramón; Rodríguez Martínez, Ángel (2014-01)
Article
Accés restringit per política de l'editorialThis paper presents a novel technique for the fabrication of ultrahigh capacitance structures based on macroporous silicon. Electrochemical etching is used to create a 3-D template in silicon. These structures reach high ... -
Immunosensor impedimetrico para la detección de pesticidas
Valera Cano, Enrique Andrés; Ramón-Azcón, Javier; Sánchez Baeza, Francisco J.; Marco Colas, María Pilar; Rodríguez Martínez, Ángel (2008)
Text en actes de congrés
Accés obertEn este trabajo describimos un immunosensor impedimétrico para la detección de pesticidas. Para demostrar dicho sensor hemos utilizado atrazina, como pesticida de test. Este sensor está basado en el uso de μ-electrodos ... -
Immunosensors based on interdigitated electrodes for the detection and quantification of pesticides in food
Valera Cano, Enrique Andrés; Rodríguez Martínez, Ángel (Intech, 2011-12)
Capítol de llibre
Accés restringit per política de l'editorial -
Immunosensors for atrazine detection in red wine samples
Valera Cano, Enrique Andrés; Rodríguez Martínez, Ángel; Azcón, J.R.; Sánchez Baeza, Francisco J.; Marco Colas, María Pilar (2011)
Text en actes de congrés
Accés restringit per política de l'editorialTwo novel immunosensors, one impedimetric and other one conductimetric, for atrazine detection in red wine samples have been developed. Impedimetric immunosensor is based on an array of interdigitated μ- electrodes (IDμEs) ... -
Immunosensors: concepts and structures for fast and accurate sensing
Rodríguez Martínez, Ángel; Valera Cano, Enrique Andrés (InTech - Open science/Open minds, 2013-05)
Capítol de llibre
Accés obert -
Impact of the absorption in transmittance and reflectance on macroporous silicon photonic crystals
Cardador Maza, David; Vega Bru, Didac; Rodríguez Martínez, Ángel (Institute of Electrical and Electronics Engineers (IEEE), 2015)
Text en actes de congrés
Accés obertThe characteristics of reflection and transmission peaks in the spectra of photonic crystals have been studied theoretically and the results compared to measurements performed in fabricated samples. The aim of this work ... -
Improved design of all-optica half subtractor based 2 - dimensional photonic crystal
Yoosefi, Oraman; Rodríguez Martínez, Ángel; Azimi, Nemat (International Journal of Advance Engineering and Research Development (IJAERD), 2019-03-01)
Article
Accés obertAbstract- Forthcoming Optical computers and Optical Signal Processors need all-optical devices in order to get rid of from Optical-Electrical-Optical conversions; Optical gates play a vital role in Optical networks. Photonic ...