Mostrando ítems 1-20 de 284

    Bioactive molecules against proteasome and cysteine proteases. Synthetic approach to vicinal diamines 

    Bou Iserte, Lledó (Fecha de defensa: 2025-04-11)

    This PhD thesis presents research advancements in the fields of organic synthesis and medicinal chemistry. The work is structured into three chapters, each focusing on distinct topics. The first chapter explores the synthesis ...

    Electrocatalytic systems for the synthesis of value-added products 

    Carvajal, David (Fecha de defensa: 2025-03-14)

    To address the challenges posed by climate change and global warming, there is a pressing need to utilise renewable materials that can be obtained in a safe and environmentally friendly manner. The utilisation of biomass ...

    Homogenous catalysis by molybdenum sulfide clusters and the study of their sulfur-centered mechanisms 

    Mateu-Campos, Juanjo (Fecha de defensa: 2025-02-21)

    The present doctoral thesis is included within the homogenous catalysis field. A comprehensive study has been conducted on the catalytic activity of molybdenum sulfide cluster compounds coordinated with nitrogen-donor ...

    Metal complexes with naphthalene-diimide and perylene-diimide-based ligands: supramolecular interactions and catalytic implications 

    Gutiérrez Peña, Cristian Leonardo (Fecha de defensa: 2025-01-31)

    This doctoral thesis delves into the design and development of new ligand precursors and organometallic complexes through the combination of two different types of rylene-diimides (RDIs), with N-heterocyclic carbene ...

    Unraveling the mechanism of CH3CH2OH dehydrogenation on m-ZrO2(111) surface, Au13 cluster, and Au13 cluster/m-ZrO2(111) surface: a DFT and microkinetic modeling study 

    de Morais, Leonardo Henrique (Fecha de defensa: 2024-12-16)

    In this study, we investigate the dehydrogenation of ethanol and the production of CH3CHO and H2 on the m-ZrO2(111) surface, an Au13 cluster, and Au13/m-ZrO2(111) surface, using density functional theory simulations. Our ...

    Biomaterials based on LMWG-polymer multicomponent supramolecular hydrogels 

    Giménez Hernández, Bárbara (Fecha de defensa: 2025-01-28)

    Supramolecular hydrogels are formed through the self-assembly of low-molecular-weight gelators (LMWGs) in water, creating three-dimensional fiber networks via non-covalent interactions. The primary drawback of supramolecular ...

    Impacto del ejercicio de Ultra Trail sobre el estado oxidativo del plasma y su relación con el daño muscular y la aparición de fatiga en una muestra de corredores amateurs 

    Guerrero Ramos, Carlos (Fecha de defensa: 2024-12-18)

    El estrés oxidativo se ha estudiado ampliamente en asociación con los deportes de ultrarresistencia sin que haya un consenso sobre las repercusiones del mismo. El objetivo de este estudio fue dilucidar el impacto de una ...

    Developing mitigation strategies to alleviate abiotic stress conditions in citrus plants 

    Terán, Fátima (Fecha de defensa: 2024-12-12)

    The climate change situation has worsened in recent decades, and this has negatively affected certain economic activities, particularly agriculture. Crops have been impacted by heatwaves, exposure to high light intensity, ...

    Supramolecular materials based on short peptides: design, synthesis and applications 

    OZBEK, NAGIHAN (Fecha de defensa: 2024-12-13)

    In this study, we planned to obtain supramolecular materials based on short peptides with a low-cost and high-efficiency synthesis procedure, which have an acceptable toxicity rate and can be applied in biological systems ...

    Síndrome metabólico y abuso de alcohol: efectos de la acción combinada de ambas patologías en el balance oxidativo del sistema nervioso central 

    Romero Cano, Ricard (Fecha de defensa: 2024-12-11)

    El síndrome metabólico es un clúster de anormalidades fisiológicas y bioquímicas entre las que se incluyen la resistencia a la insulina, obesidad central, dislipidemia, hipertensión e intolerancia a la glucosa. El consumo ...

    (E)-Styryl derivatives for the discovery of anticancer and antiviral agents 

    Bou Puerto, Amelia (Fecha de defensa: 2024-11-22)

    The present doctoral thesis is situated within the field of medicinal chemistry and the main objective is to design and evaluate organic small molecules with potential anticancer activity and to assess their potential as ...

    Geometric Numerical Integration for Hamiltonian Monte Carlo and Extrapolation 

    Shaw, Luke (Fecha de defensa: 2024-11-08)

    Hamiltonian ordinary differential equations (ODEs) occur in many applications (celestial mechanics, molecular dynamics, sampling) and their efficient numerical integration is thus of great interest. This thesis reviews the ...

    Synthesis and Aggregation Studies of Amino Acid-Derived Reduction-Responsive Bolaamphiphilic Compounds with Applications in Drug Delivery and DNA Condensation 

    Bernal Martinez, Ana Maria (Fecha de defensa: 2024-10-31)

    This thesis explores peptide-based nanocarriers, specifically cationic vesicles and nanogels formed from bolaamphiphilic molecules with a cystamine core and dipeptide groups. The first chapter discusses how these molecules ...

    Redox-switchable and metallaphotoredox catalysts based on NDI/PDI-NHC complexes 

    Ruiz Zambrana, César Luís (Fecha de defensa: 2024-10-25)

    The research presented in this doctoral thesis focuses on the preparation of novel metal complexes bearing a naphthalene-diimide (NDI) or perylene-diimide (PDI) fragment connected to an N-heterocyclic carbene (NHC) ligand. ...

    Formulation of nanoparticles with application in agriculture 

    Sampedro Guerrero, Jimmy Andres (Fecha de defensa: 2024-10-04)

    Plants face extreme climatic conditions that threaten their survival and productivity. To address this issue, salicylic acid (SA) encapsulates have been developed as a palliative treatment against various abiotic stresses. ...

    Metabolic adaptations in plants under the combination of salinity and high irradiance 

    Segarra, Clara (Fecha de defensa: 2024-09-27)

    Climate change is shown as a combination of atmospheric phenomena and human-made pollution that have been aggravated over the last years. Among the different climate changeassociated environmental conditions, increased ...

    New developments and applications of Archetypal Analysis 

    Alcacer Sales, Aleix (Fecha de defensa: 2024-09-27)

    This thesis advances data analysis through innovative methodologies centered on archetypal analysis (AA) and its extensions. It introduces archetypoid analysis for classifying foot shapes, improving footwear design by ...

    Quantum codes and locally recoverable codes from evaluation codes 

    Martín-Cruz, Helena (Fecha de defensa: 2024-07-24)

    This PhD thesis addresses two current problems belonging to the fields of classical and quantum information theory. The first is the repair problem in distributed and cloud storage systems in the setting where multiple ...

    Extracellular DNA-Induced Resistance as a Damage Associated Molecular Pattern (DAMP) in plants 

    Rassizadeh, Leila (Fecha de defensa: 2024-04-19)

    Recent studies have underscored the significance of extracellular DNA (eDNA) as a trigger for defense responses in plants. Our results demonstrated that Arabidopsis thaliana responds to the application of eDNA in a ...

    Synthesis of compounds with potential biomedical activity: SARS-CoV-2 main protease inhibitors and ABA analogs 

    De la Hoz Rodríguez, Sergio (Fecha de defensa: 2024-04-17)

    The COVID-19 pandemic, caused by the SARS-CoV-2 virus, has increased the development of new antiviral drugs to stop its spread. This work focused on synthesizing specific inhibitors of the Mpro protease, crucial for the ...