Now showing items 21-40 of 100

    Electron Energy Loss Spectroscopy Solutions for Nanoscale Materials Science Problems 

    Estradé Albiol, Sònia (Date of defense: 2009-02-21)

    In the Transmission Electron Microscope (TEM), an incident electron suffers both elastic and inelastic scattering by the solid state thin sample that is being characterised. In the event of inelastic scattering, the incident ...

    Vibrational properties of ZnO, group III-nitrides and dilute nitride alloys 

    Alarcón Lladó, Esther (Date of defense: 2009-07-07)

    [spa] Esta tesis consiste en el estudio de las propiedades vibracionales de materiales de interés para la fabricación de dispositivos optoelectrónicos, operando en distintos rangos espectrales, desde ultravioleta hasta el ...

    Development of a compact NDIR spectometer based on MOEMS components for fruit ripening monitoring 

    Fonollosa Magrinyà, Jordi (Date of defense: 2009-07-20)

    [spa] Actualmente el control de la concentración de etileno en las cámaras de almacenamiento de fruta proporciona información de gran interés sobre su estado. Por un lado, la fruta produce pequeñas concentraciones de etileno ...

    Development of cellular microarrays for stem cell culture and early stage differentiation evaluation 

    Rodríguez Seguí, Santiago Andrés (Date of defense: 2010-01-15)

    [spa] El desarrollo de microambientales artificiales ordenados en un formato de microarray (microarrays celulares, también conocidos en inglés como "cellular microarrays") se ha propuesto como una herramienta que permite ...

    A Novel Column Format for on-Chip Liquid Chromatography Fabricated in Cyclo Olefin Polymer 

    Illa Vila, Xavier (Date of defense: 2010-09-28)

    This thesis describes a novel column format to be used in pressure-driven reversed-phase liquid chromatography. The column contains an ordered pillar array where the stationary phase is supported, and it is fabricated in ...

    Síntesi i caracterització d’òxid de titani nanoestructurat per aplicacions energètiques 

    Fàbrega Gallego, Cristian (Date of defense: 2011-09-16)

    La tesi s’engloba en un context energètic en el que les tendències actuals del subministrament i el consum d’energia són clarament insostenibles. No és exagerat dir que el futur de la prosperitat de la humanitat depèn de ...

    Enabling active locomotion and advanced features in capsule endoscopy 

    Alonso Casanovas, Oscar (Date of defense: 2012-04-27)

    The significant development in medical diagnostics and imaging has brought up a lot of new wireless capsule endoscopes coming to health care market. The capsule has been able to minimize patient discomfort and pain during ...

    Optically active Si-rich Si3N4 Mu-cavities for sensoristic applications 

    Ferrarese Lupi, Federico (Date of defense: 2012-05-23)

    In this thesis we have presented a thorough study on the optical and sensoristic properties of SRSN Mu-disks, in an isolated configuration and when coupled to a passive Si3N4 waveguide placed underneath. The whole ...

    Studying Electrostatic Polarization Forces at the Nanoscale. Dielectric constant of supported biomembranes measured in air and liquid environment 

    Gramse, Georg (Date of defense: 2012-06-19)

    The objective of my thesis was to develop novel techniques and methods to probe the dielectric properties of biomembranes in air and their natural environment - liquid solution. The dielectric constant ε(r) of biomembranes ...

    Smart Chemical Sensors: Concepts and Application 

    Udina Oliva, Sergi (Date of defense: 2012-07-13)

    This PhD thesis introduces basic concepts of smart chemical sensors design, which are afterwards applied to a particular application: the analysis of natural gas. The thesis addresses thus two sets of objective, a first ...

    Desenvolupament de microgeneradors inercials electromagnètics en tecnologia de microsistemes per a la recuperació d’energia mecànica residual de l’ambient 

    Fondevilla Sala, Núria (Date of defense: 2012-07-20)

    Aquesta tesi descriu el desenvolupament d’un microgenerador ressonant compatible amb la tecnologia de Si, especialment adequat per extreure energia mecànica residual de l’ambient. Aquesta mena de font “perpètua” d’energia ...

    Optical grating coupler biosensor and biomedical applications 

    Diéguez Moure, Lorena (Date of defense: 2012-07-27)

    Biosensors are nowadays a powerful tool to enable the detection of specific biological interactions and to evaluate the concentration dependence in the response. A biosensor usually consists of three different parts: the ...

    Construction of versatile biomolecule nano-platforms via Dip-pen Nanolithography and their application in bio-sensing and cell differentiation 

    Oberhansl, Sabine (Date of defense: 2012-10-29)

    The present thesis entitled “Construction of versatile biomolecule nano-platforms via Dip-pen Nanolithography and their application in bio-sensing and cell differentiation” aims at contributing to the field of Nanobiotechnology, ...

    Nanoscale structural and mechanical properties of lipid bilayers in air environment / Propietats estructurals i mecàniques a la nanoescala de les bicapes lipídiques en aire 

    Dols Pérez, Aurora (Date of defense: 2012-12-04)

    Cell membranes are 2-D heterogeneous fluid systems that show nanoscale structures of great interest because of its importance in membrane functions. Due to the inherent complexity of natural membranes, the study of model ...

    Analysis and characterisation of biological samples in nano and microfluidic devices using AC and DC electric fields 

    Castillo Fernández, Óscar (Date of defense: 2012-12-10)

    The present thesis work titled “Analysis and characterisation of biological samples in nano and microfluidic devices using AC and DC electric fields” has as main objective study the effects that electric fields have biologic ...

    Functional Nanomaterials from the Bottom-up Assembly of Colloidal Nanoparticles. A Strategy Towards Efficient Thermoelectrics 

    Ibáñez Sabaté, Maria (Date of defense: 2013-03-05)

    The work developed during this PhD has embraced several topics that I divide in three blocks. Each block contains two chapters in this dissertation. Additionally, a general introduction of the different topics is provided ...

    Solution Growth and Functional Properties of Vertically Aligned ZnO Nanowires 

    Fan, Jiandong (Date of defense: 2013-07-19)

    This dissertation has focused on three main topics: (1) Synthesis and characterization of ZnO:Cl NWs; (2) Hetero and homo nanostructures based on ZnO:Cl NWs for efficient PEC cells; (3) Photovoltaic performance of DSCs ...

    Signal Processing Approaches to the Detection and Localization of Gas Chemical Sources using Partially Selective Sensors 

    Pomareda Sesé, Victor (Date of defense: 2013-07-23)

    Due to recent progress, higher-order chemical instrumentation provides large amounts of data which need automated processing in order to extract relevant information. In most cases, the raw signals or spectra are too complex ...

    Shape Control and Functional Properties of Copper Chalcogenide Colloidal Nanocrystals 

    Li, Wenhua (Date of defense: 2013-10-01)

    The high quality CuxS nanocrystals were synthesized (Chapter 3) and the profound understanding and skills to prepare colloidal nanocrystals has been obtained and improved. It revealed a very simple synthetic route not only ...

    Methods and tools for the design of RFICs 

    Carrasco Carrillo, Tomás (Date of defense: 2013-10-16)

    Ambient intelligence is going to focus the next advances in wireless technologies. Hence, the increasing demand on radio frequency (RF) devices and applications represents, not only a challenge for technological industries ...