An efficient algorithm to reduce the noise from the Nuclear Magnetic Resonance Free Induction Decay (NMR FID) signals is presented, in this paper, via the oversampled real-valued discrete Gabor transform using the Gaussian synthesis window. An NMR FID signal in the Gabor transform domain (i.e., a joint time-frequency domain) is concentrated in a few number of Gabor transform coefficients while ...

The utility of H NMR spectroscopy of headgroup deuterated amphiphiles as a tool for measuring charge density at the surface of lipid bilayer membranes and polymer colloids is described. Attention is given to current ideas regarding the physical origin of the spectral changes observed in the presence of surface charges, and to several novel applications of the technique including determination o...

Multidimensional nuclear magnetic resonance (NMR) provides one of the foremost analytical tools available to elucidate the structure and dynamics of complex molecules in their native states. Executing this kind of experiment generally requires collecting an n-dimensional time-domain signal S, from which the spectrum arises via an appropriate Fourier analysis of its various time variables. This ...

The nature and spectroscopic expression of external surface sites zeolites, in particular ZSM-5, is a long-debated question. Herein, we use three cutting-edge techniques: Fourier-transform infrared spectroscopy (FTIR) with Fourier self-deconvolution (FSD), high magnetic field proton NMR under fast magic-angle spinning (MAS) periodic boundary Density Functional Theory (DFT) calculations to study...

Nuclear Magnetic Resonance (NMR) is widely used in medical diagnostics and chemical analysis. Due to rapid growing of the NMR applications, the conventional NMR systems may not fulfill the need of all applications. The development of a micro-NMR device would not only benefit the original NMR applications but could also open a door for new NMR applications. Two approaches for building a NMR syst...

The EF-hand family of calcium-binding proteins regulates cellular signal transduction events via calcium-dependent interactions with target proteins. Here, we show that the COOH-terminal tail of the leech homolog of protein phosphatase 4 regulatory subunit 2 (PP4-R2) interacts with the small neuronal EF-hand calcium-binding protein, Calsensin, in a calcium-dependent manner. Using two-dimensiona...

In digital rock physics, surface relaxation of NMR decay on a 3D porous media is often simulated with Random-Walker methods, where Brownian walkers representing the magnetized nuclei are absorbed by the solid surface under an interfacial absorption probability. Previous simulations usually neglected the blocky pixel appearance of 3D pore space images, which results in over estimation of the sur...