Facultat de Química: Recent submissions
Now showing items 41-60 of 103
Computational modeling of transition metals carbides with relevant to nanotechnology and catalysis
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 ...
Photoswitchable allosteric ligands to modulate metabotropic glutamate receptors
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 ...
Nanostructured transition metal carbides as potential catalysts for greenhouse gases conversion
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. ...
Cosymlib: a Python library for continuous symmetry measures and its application to problems in structural chemistry
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
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, ...
Study of transition metal carbide catalysts of group 5 in the RWGS reaction
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 ...
Development and applications of photoswitchable small molecules and peptides to control protein-protein interactions and GPCR activity
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 ...
Conjugated organic radicals and polyradicals: electronic structure and photophysics
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 ...
Análisis cualitativo y cuantitativo de fármacos en peces por espectrometría de masas de alta resolución de cuadrupolo-tiempo de vuelo
En la presente tesis doctoral se desarrollaron métodos analíticos para la determinación de fármacos de uso humanos en el tejido muscular de los peces, incluyendo la comparación y optimización de diferentes tipos de ...
Distribution of perfluoroalkyl substances in the environment
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 ...
Suspect screening of natural toxins in surface water reservoirs
Natural toxins include a multitude of toxic secondary metabolites produced by animals, bacteria, fungi algae, and plants that are generally not intended as environmental contaminants of concern for water quality. However, ...
Evaluation of biotoxins in marine ecosystems by new analytical and biological strategies
In this thesis is presented the development of different analytical methodologies for the analysis of marine biotoxins in seawater. The objectives were the development of the methods and the application to study the biotoxins ...
Pesticides in the environment: analysis, occurrence, impact and recommendations for their attenuation
The assessment of pesticide occurrence in different environmental compartments has become a matter of outstanding importance since its effects on exposed organisms may be considered a warning on the potential risk these ...
Drogas y psicofármacos: estudio de su presencia en el medio ambiente (aguas residuales, sedimentos y mejillones) y evaluación de su consumo e impacto
En esta tesis doctoral se han desarrollado tres metodologías analíticas para el análisis de drogas, psicofármacos y sus metabolitos en tres compartimentos medioambientales: aguas residuales, sedimentos y biota. Las ...
Conformational catalytic itineraries of five- and six-membered sugar rings in enzymatic and superacid media
Carbohydrates were early considered important for energy storage and structural support for living organisms. It was not until a few decades ago that scientist discovered that they are also involved in much more complex ...
Development and applications of photoswitchable muscarinic ligands
Modern medical treatments are largely based on the ability of pharmacological drugs to interact with a molecular target in the human body (e.g., receptors) in order to evoke a physiological response. Such targets are ...
Chemical and ecotoxicological assessment of microplastics and emerging risks in the coastal environments
In recent decades, global plastics production and consumption have continued to increase. Although many policy strategies on waste prevention and recycling have been implemented, much of the plastic waste is dispersed in ...
Contaminants organoclorats, organobromats i organofosforats en població general
Durant les dècades dels anys 50 i 60 del segle XX es van utilitzar arreu del món diferents tipus de compostos organoclorats i organobromats, que pertanyen als contaminants orgànics persistents (COPs), com a pesticides, ...
An integrated assessment of nanoparticle exposures in the ceramic industry
Exposure to nanoparticles has been associated with adverse effects on human health. When the exposure route is inhalation, nanoparticles can cause pulmonary inflammation which may be more severe than from fine particles, ...
Organic pollutants in indoor dust: method development, site-specific monitoring and human exposure
Dust has been used as a surrogate of indoor organic contamination for several decades. Their concerns for human health include from sensitization effects such as allergies to toxic effects derived from those organic ...
