Probing Interactions of γ‐Alumina with Water via Multinuclear Solid‐State NMR Spectroscopy

Metal ion-RNA interactions studied via multinuclear NMR.

Metal ions are indispensable for ribonucleic acids (RNAs) folding and activity. First they act as charge neutralization agents, allowing the RNA molecule to attain the complex active three dimensional structure. Second, metal ions are eventually directly involved in function. Nuclear magnetic resonance (NMR) spectroscopy offers several ways to study the RNA-metal ion interactions at an atomic l...

Multinuclear Magnetic Resonance Imaging and NMR Spectroscopy in Biomedical Investigations

Biomedical investigations with small animals using 0.5-T and 7-T MRI scanners adjusted on the Larmor frequencies of different nuclei 1H, 2H, 11B, 13C, 19F, 23Na, 31P, 35Cl are described. Experiments on registration of signals 19F from the fluorocarbons injected in laboratory animals are discussed. They give presentation on the application of fluorocarbon compounds as blood substitutes and contr...

Probing liquid-liquid interfaces with spatially resolved NMR spectroscopy.

Phenomena occurring at the interface between two immiscible liquids have a deep impact on many processes of everyday life. The stability of emulsions depends on the interaction of proteins or surfactants at the oil–water interface. Solvent extraction and phase-transfer catalysis rely on optimizing reactions at the boundary of two liquids. Moreover, the liquid–liquid interface between an organic...

Interactions of β-lactoglobulin with Cationic Surfactants: Spectroscopy Study

The interactions of β-lactoglobulin AB in the presence of cationic surfactants such as Cetyltrimethylammonium bromide and Cetyltrimethylammonium p-Toluenesulfonate have been investigated using a variety of experimental techniques such as conductivity, UV-Vis spectrophotometry and fluorimetry. The conductivity of surfactants aqueous solutions with β-lactoglobulin shows that the cmc of cationic s...

Probing Biomolecular Interactions Using Nanopore Force Spectroscopy