Universitat de Barcelona
Mostrando ítems 38-57 de 85
En la primera parte de esta tesis, se basó en la síntesis de ligandos basados en la heptazina y los complejos formados con CuII. Utilizando 2-dipiridilamina para funcionalizar el núcleo de heptazina, (ligando que presenta ...
During the last years, the research group where this Doctoral Thesis has been carried out has been pioneer in the development of different gold(I) complexes and resulting supramolecular assemblages with a wide variety of ...
Los materiales piezoeléctricos basados en el titanato zirconato de plomo (PZT) son ampliamente utilizados en una gran cantidad de dispositivos electrónicos debido a sus excelentes propiedades eléctricas. Esta mejora de las ...
Carbohydrates are essential molecules in biotechnology and for the proper functioning of living organisms. They are involved in energy storage, being structural components or participating in crucial biological processes ...
In this doctoral thesis a series of computational and experimental studies of molecular magnetoresistance devices at room temperature is presented. This sort of devices is included in the molecular electronics framework ...
The Thesis is based on the development of a potentially-scalable methodology to prepare polyurethane/polyurea polymers to nanoencapsulate bioactive molecules. In the first part of the project, the design, optimization and ...
The main contribution of this doctoral thesis has been devoted to the field of synthetic organic chemistry. The Pauson-Khand reaction (PKR) is a metal-catalyzed [2+2+1] cycloaddition between an alkyne, an alkene and a ...
[eng] The increasing demand on next-generation displays encourages an exhaustive research on the development of new and enhanced semiconductors. Apart from the conventional inorganic materials, organic-based semiconductors ...
In this work, the effect of CO2 on the hydrogen production under substoichiometric ethanol steam reforming (ESR) conditions over nickel based catalysts was studied. A special emphasis was focused on the application of ...
L'objectiu principal d'aquesta Tesi doctoral ha estat l’obtenció d’una via alternativa a les existents per a l'obtenció d'un intermedi clau, 1, en la síntesi d'un fàrmac anticoagulant. La nova via havia de ser novedosa i ...
After decades of exorbitant antibiotic misuse and overuse in human medicine, agriculture and livestock industry, multidrug resistant bacteria (MDR) have become a major medical concern. In this regard, the design of new, ...
In the present Thesis, it has been carried out the development of new chemical tools for the diagnosis and treatment of cancer through the use of light as an external factor. On the one hand, light can be used to control, ...
An alternative allowing diene-derivatised polyamides to be used in Diels-Alder conjugation reactions has been explored and developed. In this methodology, conjugation takes place between a fully protected, resin-linked ...
c-Src is a central player in several cellular signaling pathways. It controls impor- tant cellular processes like cellular proliferation, survival or motility. Therefore, a number of tumoral diseases have been related to ...
Estudios previos de nuestro grupo de investigación describieron moléculas orgánicas heterocíclicas, aparentemente de capas cerradas que presentan carácter birradical triplete asequible térmicamente. La formación de esta ...
Alzheimer’s disease (AD), for which no cure is known yet, is currently the most prevalent cause of dementia for the elderly population. The aberrant aggregation of β-amyloid peptide (Aβ) is believed to trigger the events ...
[spa] En el primer bloque de la tesis describimos nuestra aproximación a la síntesis total de la Palmerolida D, un compuesto de gran interés, tanto por sus propiedades antitumorales como por la diversidad de reacciones ...
El desarrollo de métodos para la creación de nuevos enlaces carbono-carbono de forma sostenible y selectiva es clave en la química orgánica actual. En las últimas décadas, ha aumentado de gran manera el interés en llevar ...
La quiralidad es una propiedad fundamental de la naturaleza. La vida en la Tierra se basa en la quiralidad. Casi todos los compuestos quirales presentes en los organismos vivos se encuentran solo en una de sus formas ...
Asymmetric hydrogenation of double bonds by means of organometallic catalysis is a powerful tool for organic synthesis; it is an efficient and simple method to produce valued chiral compounds. Among the many different ...
