Now showing items 61-80 of 101

    Distribution of perfluoroalkyl substances in the environment 

    Colomer Vidal, Pere (Date of defense: 2021-02-12)

    Perfluoroalkyl substances (PFASs) are a large group of man-made chemicals that are widely used throughout society and found in the environment. These compounds are characterized by perfluorinated carbon chains of varying ...

    Conjugated organic radicals and polyradicals: electronic structure and photophysics 

    Sandoval-Salinas, María Eugenia (Date of defense: 2021-02-15)

    The principal aim of this thesis is the understanding of the electronic structure of organic diradical and polyradical molecules. Unveiling the properties that give them the electronic, magnetic, and optical properties to ...

    Development and applications of photoswitchable small molecules and peptides to control protein-protein interactions and GPCR activity 

    Prischich, Davia (Date of defense: 2021-02-23)

    Photopharmacology is an emerging field that relies on the development of photosensitive compounds to enable precise spatiotemporal control over endogenous proteins. Photochromic ligands· are designed to respond ...

    Study of transition metal carbide catalysts of group 5 in the RWGS reaction 

    Pajares Rojas, Arturo Javier (Date of defense: 2021-07-16)

    Nowadays there is a growing interest in the capture and utilization of CO2 because of the increase of its concentration in the atmosphere. Captured CO2 can be recycled through different processes to obtain several value-added ...

    Cosymlib: a Python library for continuous symmetry measures and its application to problems in structural chemistry 

    Bernuz Fito, Efrem (Date of defense: 2021-07-19)

    For many years symmetry has been a useful concept in the study of the spatial organization of atoms in molecules or solids. The presence of symmetry elements in a given molecular structure gives a valuable information about ...

    Origin and release of cyanotoxins in surface water reservoirs 

    Filatova, Daria (Date of defense: 2021-07-20)

    Cyanobacteria are prokaryotes and components of regular periphyton formation. Overall, there are around 2000 cyanobacterial species that live in various environments. Some cyanobacterial species are known to form blooms, ...

    Nanostructured transition metal carbides as potential catalysts for greenhouse gases conversion 

    Figueras Valls, Marc (Date of defense: 2021-12-14)

    Over the recent decades, several studies revealed the precarious climate situation which is threatening all Life forms on earth, including mankind, even if sometimes we tend to ignore the actual fragility of our situation. ...

    Photoswitchable allosteric ligands to modulate metabotropic glutamate receptors 

    Panarello, Silvia (Date of defense: 2021-12-15)

    Photopharmacology has the main purpose to allow the control of protein activity with light. The most exploited strategy used to achieve this objective is the freely diffusible photopharmacology and it is based in the use ...

    Computational modeling of transition metals carbides with relevant to nanotechnology and catalysis 

    Piñero Vargas, Juan José (Date of defense: 2021-12-15)

    The work carried out in this thesis is based on the study of transition metal carbides (TMCs) as catalysts study from a theoretical point of view, using the techniques of Computational Chemistry. TMC materials have been ...

    Syntheses of (S)-Bicalutamide and Somatostatin analogs, and development of Green procedures for Peptide synthesis 

    Matarín Morales, Joan Antoni (Date of defense: 2021-12-15)

    Peptides are defined as compounds that contain between two and fifty amino acids connected together by amide bonds. Inside our body, peptides are natural biological messengers that play critical roles in human physiology ...

    Advanced Modelling of Metallic Nanomaterials for Catalysis 

    Vega Domínguez, Lorena (Date of defense: 2021-12-21)

    Nanoparticles are highly relevant for catalysis due to their nanostructure, which increases the fraction of surface atoms, and the size dependent morphology and properties. Catalytic properties of nanoalloys also depend ...

    Engineered nanomaterials release from nano-enabled products 

    Pomar-Portillo, Vicenç (Date of defense: 2021-12-21)

    The increased presence of nano-enabled products in multiple applications has raised concerns about its potential risks to human health and the environment. Therefore, there is a need for a responsible and coordinated ...

    Actividad de la proteina intrínsecamente desordenada p15(PAF) en el replisoma o cómo el desorden orquesta la replicación celular 

    Barrera Vilarmau, Susana (Date of defense: 2022-03-15)

    La abrazadera deslizante eucariota (PCNA), juega un papel esencial como componente del replisoma. PCNA, de forma toroidal, rodea el DNA y ata las polimerasas y otros factores a la plantilla genómica para una síntesis ...

    Ti-containing hybrid organosilicas, Mo(x)C/g-C(3)N(4) nanocomposites and engineered Mo(x)C/TiO(2) nanomaterials as noble-metal-free photocatalysts for H(2) production 

    Wang, Yan (Date of defense: 2022-04-07)

    The photocatalytic hydrogen production is considered an environmentally promising and friendly method, which could lead to achieve clean and renewable hydrogen and contribute in the future to store solar energy as chemical ...

    Computational Analyses of CO2 Electroreduction and C Interactions with Transition Metals 

    Piqué Caufapé, Oriol (Date of defense: 2022-05-03)

    Catalysis is ubiquitous in chemical industries since it accelerates chemical reactions, thereby saving considerable amounts of energy. Most catalytic processes in industry are heterogeneous in nature, typically involving ...

    Technical and economic evaluation of anaerobic membrane bioreactors for municipal wastewater treatment 

    Vinardell Cruañas, Sergi (Date of defense: 2022-05-04)

    Anaerobic membrane bioreactor (AnMBR), which is a combination of membrane separation and anaerobic digestion, is an emerging biotechnology for municipal sewage treatment. The application of AnMBRs in the mainline of ...

    Bioactive glass coatings obtained by thermal spray techniques 

    Garrido Domínguez, Beatriz (Date of defense: 2022-06-22)

    Bone tissue has an excellent healing response, recovering functional and structural properties when damaged. Notwithstanding, severe damage to the bone implies the need for surgery to recover. Different orthopaedic devices ...

    The Antarctic as Sentinel of Global Pollution 

    Casas Papell, Gemma (Date of defense: 2022-07-19)

    Since the industrial revolution, we have introduced thousands or tens of thousands of new synthetic compounds, originating a new environmental perturbation in the Earth’s system. Among these, there are the so-called ...

    Primary batteries paradigm redefinition within the environmental planetary boundaries 

    Navarro-Segarra, Marina (Date of defense: 2022-07-27)

    Digital technologies are generating a global transformation with economic, social, and environmental implications. Digitalization has already shown many benefits to society; however, it is also generating a fierce debate ...

    Development and application of analytical and chemometric methodology for environmental metabolomic studies based on one-and two-dimensional liquid chromatography coupled to mass spectrometry 

    Pérez Cova, Miriam Carolina (Date of defense: 2022-09-05)

    Chemical exposure to emerging contaminants (ECs) is a major concern nowadays. These ECs have recently become a global environmental threat, and an in-depth characterization of their occurrence and toxic impact is needed. ...