Thèse de doctorat : Université de Fribourg, 2007 ; Nr. 1575.
Nanotechnologie ist ein Begriff, dessen Bedeutung ständig wächst, da die Industrie täglich mehr Materialien auf den Markt bringt, welche im Prozess der Miniaturisierung bis in den Nanometerbereich entwickelt wurden. Vom heutigen Standpunkt aus ist es längst nicht mehr klar, wohin uns die Nanotechnologie noch führen wird. Kann der Traum von molekularen Maschinen, die mit „atomarer“...
|
Thèse de doctorat : Université de Fribourg, 2004 ; no 1440.
Nanotechnology, a research area that covers many scientific disciplines such as Medicine, Biology, Physics and Chemistry has found a great interest in research institutions and wide applications in industries. This is due to many reasons; from these we note the control down to the molecular level providing thereby a greatest efficiency and an important added value as a reason of the low cost of...
|
Thèse de doctorat : Université de Fribourg, 2002 ; No 1369.
The field of new optically active and reactive organometallic species is of tremendous interest. Within this area, (-)-(1S)-dicarbonyliodide[μ5-(2,8,8-tri-methylbicyclo[3.2.1]oct-3,6-diene)2-yl] iron (1), called 2-Me-BOD-Fe(CO)2I, emerges as a new stage in the development of chiral cyclopentadienyl-like complexes. Studying the reactivity of 1 has shown that both its non-contiguous μ5-system and...
|
Thèse de doctorat : Université de Fribourg, 1996 ; Nr. 1142.
|
Thèse de doctorat : Université de Fribourg, 2014.
Efficient hydrogen storage is one of the major hurdles towards a potential hydrogen economy. Curved molecules are very interesting for this purpose because of their permanent electrical dipole moment, which can induce a dipole moment on H2 molecules increasing therefore the dipole-dipole interaction and so their adsorption. This work presents the synthesis of a new bowl-shaped polyarene based on...
|
Thèse de doctorat : Université de Fribourg, 2001 ; no 1332.
The first objective of this thesis is the calculation of excited state energies and properties of transition metal complexes using Density Functional Theory (DFT). To explore this wide topic, we did choose three different chemical systems. The first one, presented in the chapter 4, is about the photodissociation of the tris(2,2’- bipyridine)ruthenium(II) ([Ru(bpy)3]2+) ion. Over the last two...
|
Thèse de doctorat : Université de Fribourg, 1994 ; no 1063.
|
Thèse de doctorat : Université de Fribourg : 2003 ; no 1400.
Proper chromosome segregation is a crucial event for accurate cell division. Defects in chromosome segregation lead to genetic instability and aneuploidy and are correlated with cancer. The laboratory studies chromosome segregation in the budding yeast Saccharomyces cerevisiae. Since this process is highly conserved among eukaryotes, studies in yeast will provide fundamental understanding of this...
|
Thèse de doctorat : Université de Fribourg, 2011.
La chimie organique nécessite, en général, l'utilisation de substances toxiques et/ou de quantités massives d'énergie. L'impact environnemental est amplifié lorsque ces réactions chimiques sont pratiquées à l'échelle industrielle. Un nouveau concept, appelé "green chemistry", a émergé et a pour but de minimiser l'effet néfaste de la chimie sur l'environnement. La photochimie peut...
|
Thèse de doctorat : Université de Fribourg, 2000 ; Nr, 1293.
Mittels Immunocytochemie untersuchten wir die Rolle der fünf Komponenten des Plasmamembran- Oxidoreduktase (PMO) Komplexes, GAPDH, Hsc70, Enolase γ, Aldolase C und Ulip, während des Oxidativen Stresses und in der Apoptose. Um die Rolle dieser fünf Proteine, welche von unserer Forschungsgruppe isoliert worden waren, zu erforschen, machten wir uns die Konfokal Laser Scanning Microscopie zu...
|
