Now showing items 122-141 of 141
Xifra Garcia, Raül (Date of defense: 2005-01-28)
· S'ha preparat i caracteritzat una família de complexos de Cu(III) contenint lligands triazamacrocíclics, estudiant-se les seves propietats estructurals, espectroscòpiques i redox. Aquesta àmplia família de complexos tenen ...
Sánchez Navarro, Juan Manuel (Date of defense: 1999-03-17)
For the selective separation of Noble Metals, different new chelating polymers with the same functional group, based on tri-isobutylphosphine sulphide, have been synthesised. Different spacers between the polymeric matrix ...
Borrell Recasens, Margarida (Date of defense: 2021-11-05)
Oxidations are an important kind of reactions which are traditionally performed using stoichiometric oxidants that generate a large amount of waste. Syn-dihydroxylation of alkenes is a paradigmatic example because it is ...
Ng Choi, I-teng Montserrat (Date of defense: 2015-12-15)
The incorporation of unsymmetrical biaryl systems into peptide sequences is a strategy that can improve their biological activity. Due to the difficulty of arylating the 4(5}-position of the imidazole ring, this doctoral ...
Rosés Subirós, Cristina (Date of defense: 2016-01-22)
This thesis is focused on the development of synthetic approaches to obtain new bioactive peptides. The first part deals with the design of new antimicrobial peptide/cell-penetrating peptide conjugates as anticancer agents. ...
García Borràs, Marc (Date of defense: 2015-05-29)
It all started in 1985, when Kroto, Smalley and Curl discovered by serendipity a new carbon allotrope. They synthesized for the first time the C60 molecule, and named it as ”Buckminsterfullerene”, because of the similarity ...
Fontanet Cepeda, Mònica (Date of defense: 2013-11-22)
In this thesis is presented the synthesis and characterization of two different carboranylcarboxylate ligands, 1-CH3-2-CO2H-1,2-closo-C2B10H10 and 1-CO2H-1,2-closo-C2B10H11, in which the methyl group bonded to the carbon ...
Fuertes Espinosa, Carles (Date of defense: 2020-07-23)
The use of self-assembly to bring simple building blocks together into complex product, has led to the preparation of an increasing number of sophisticated and functional 3D supramolecular nanocapsules. By understanding ...
Ubasart Clarà, Ernest (Date of defense: 2022-10-28)
The development of supramolecular assemblies with big cavities is important to recognize specific guests or infer a chemo- or regioselective chemistry, in analogy to natural enzymes. The objective of this thesis was to ...
Monroc, Sylvie (Date of defense: 2008-01-18)
Aquesta tesi doctoral se centra en l'estudi de l'aplicació de pèptids antimicrobians en la lluita contra agents patògens de cultius de plantes d'interès econòmic.L'estratègia sintètica s'ha portat a terme utilitzant ...
Güell Costa, Imma (Date of defense: 2012-01-27)
In the present PhD thesis we studied the solid-phase peptide synthesis of antimicrobial peptides derived from the lead peptides BP100 and BPC194. First, peptides derived from BP100 containing D-amino acids at different ...
El Marrouni El Ghazaoui, Abdellatif (Date of defense: 2012-04-13)
The principle theme of this thesis was the synthesis of bioactive compounds. To this end, this work was focus on two main projects. The first one, which was carried out in the Department of Chemistry of the University of ...
Ribas Salamaña, Xavi (Date of defense: 2001-12-17)
El treball de tesi s'emmarca dins del camp de la bioinorgànica, disciplina que estudia les propietats estructurals i de reactivitat dels centres actius dels enzims, servint-se de models síntètics de baix pes molecular per ...
Čelić, Mira (Date of defense: 2020-12-15)
The main objective of this thesis is to evaluate the impact of wastewater discharges on receiving riverine and coastal ecosystems by studying the occurrence and fate of emerging contaminants (ECs). Since there is a myriad ...
Vilaseca Morera, Fabiola (Date of defense: 2000-03-08)
El trabajo presentado se enmarca en el estudio del destintado de papeles viejos con un fuerte contenido en pasta mecánica y con una composición de partida del 60% de papel de periódico y un 40% de paper revista. Se somete ...
Tussupbayev, Samat (Date of defense: 2009-02-26)
Esta tesis presenta un estudio computacional de los sistemas con hidruros puente. En la primera parte se estudia la química de complejos de dirutenio con cuatro hidruros puente. Esto incluye las siguientes reacciones: el ...
Acuña-Parés, Ferran (Date of defense: 2016-07-20)
One of the major current scientific goals is the development of renewable energy sources. An effective alternative to fossil fuels consists in the conversion of the sunlight energy into chemical fuels. The molecular hydrogen ...
Parera Briansó, Magda (Date of defense: 2014-05-20)
The transition-metal catalysed [2+2+2] cycloaddition reaction is a highly efficient synthetic tool that allows six-membered polysubstituted carbo- and heterocyclic derivatives to be obtained in an atom economy process. ...
Corona Prieto, Teresa (Date of defense: 2017-02-17)
The transformation of C-H bonds into C-O/N bonds is a process of interest in organic synthesis, but controlling the reactivity and selectivity among the multiple C-H bonds existing in most molecules is a challenging task. ...
Iglesias Juncà, Mònica (Date of defense: 2000-03-03)
The present study focuses on the characterization of solid-liquid extraction techniques for the separation and preconcentration of rare-earth elements and precious metals. We developed an impregnated resin with di ...