Synthesis of octa(1,1,3,3-tetramethylbutyl)octakis (dimethylphosphinoylmethyleneoxy)calix[8]arene and its application in the synergistic solvent extraction and separation of lanthanoids

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Synthesis, characterization and cytotoxicity of arene-ruthenium(II) complexes with acylpyrazolones functionalized with aromatic groups in the acyl moiety

Paul Joseph Dyson, Rosario Scopelliti, Tina Riedel

A series of neutral ruthenium(II)-arene complexes, [(arene) Ru(Q(R))Cl] (arene = p-cymene or hexamethylbenzene), containing 4-acyl-5-pyrazolonate (Q(R)) ligands with aromatic substituents in the acyl moiety (a phenyl in Q(Ph) and a 1-naphthyl in Q(naph)) a ...

2018

Brain metabolism during Chronic Hepatic Encephalopathy studied by in vivo 1H and 31P MRS

Veronika Rackayová

Magnetic resonance spectroscopy (MRS) is a powerful tool increasingly used in biomedical research and also in clinical practice. This thesis focused on the improvements of in vivo 31P MRS and 31P magnetization transfer methods at high magnetic field (9.4T ...

EPFL2018

3D printed microchannels for sub-nL NMR spectroscopy

Jürgen Brugger, Giovanni Boero, Martinus Gijs, Johann Michler, Marco Grisi, Enrica Montinaro, Maria Cristina Letizia, Laszlo Pethö

Nuclear magnetic resonance (NMR) experiments on subnanoliter (sub-nL) volumes are hindered by the limited sensitivity of the detector and the difficulties in positioning and holding such small samples in proximity of the detector. In this work, we report o ...

2018

Ultra high magnetic field for glial contribution into brain metabolism studied by MR spectroscopy and CEST methods for molecular imaging of glycogen

Elise Marie Catherine Vinckenbosch

Magnetic resonance at ultra-high field increases signal and spectral dispersion. In this thesis, I use those characteristics to investigate three different subjects in 13C spectroscopy, hyperpolarized methods and chemical exchange saturation transfer (CEST ...

EPFL2018

Study of fast exchanging processes by NMR Spectroscopy

Estel Canet Martinez

Nuclear magnetic resonance (NMR) spectroscopy is one of the most powerful and informative methods to probe molecular dynamics. Specifically, chemical exchange is an important phenomenon and one of the earliest and most vigorously investigated in NMR spectr ...

EPFL2017

How Energy Metabolism Supports Cerebral Function: Insights from 13C Magnetic Resonance Studies In vivo

Rolf Gruetter, João Miguel das Neves Duarte, Sarah Catherine Sonnay

Cerebral function is associated with exceptionally high metabolic activity, and requires continuous supply of oxygen and nutrients from the blood stream. Since the mid-20th century the idea that brain energy metabolism is coupled to neuronal activity has e ...

Frontiers Research Foundation2017

Nuclear overhauser spectroscopy of chiral CHD methylene groups

Geoffrey Bodenhausen, Fabien Ferrage

Nuclear magnetic resonance spectroscopy (NMR) can provide a great deal of information about structure and dynamics of biomolecules. The quality of an NMR structure strongly depends on the number of experimental observables and on their accurate conversion ...

Springer Verlag2016

Proton diffusion spectroscopy and modeling of brain metabolism at 14.1T

Masoumeh Dehghani Moghadam

As a field at the CIBM, Nuclear magnetic resonance (NMR)spectroscopy can be applied non-invasively to explore the metabolic fate of energy fuel substrates, as well as the rate at which they are consumed, using 13C and 1H nuclei. The work of this thesis enc ...

EPFL2016

Homonuclear decoupling for spectral simplification of carbon-13 enriched molecules in solution-state NMR enhanced by dissolution DNP

Geoffrey Bodenhausen, Aurélien Bornet, Sami Jannin, Diego Carnevale, Srinivas Chinthalapalli

Complex overlapping multiplets due to scalar couplings (n)J(C-13, C-13) in fully C-13-enriched molecules can be simplified by polychromatic irradiation of selected spins. The signal intensities of the remaining non-irradiated signals are proportional to th ...

Royal Society of Chemistry2016

Proton-detected 3D N-15/H-1/H-1 isotropic/anisotropic/isotropic chemical shift correlation solid-state NMR at 70 kHz MAS

Jayasubba Reddy Yarava

Chemical shift anisotropy (CSA) tensors offer a wealth of information for structural and dynamics studies of a variety of chemical and biological systems. In particular, CSA of amide protons can provide piercing insights into hydrogen-bonding interactions ...

Academic Press Inc Elsevier Science2016

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