We review, systematize and discuss models of diffusion in neuronal tissue, by putting them
into an overarching physical context of coarse‐graining over an increasing diffusion length …

Quantification of non‐Gaussianity for water diffusion in brain by means of diffusional kurtosis
imaging (DKI) is reviewed. Diffusional non‐Gaussianity is a consequence of tissue structure …

Axon caliber plays a crucial role in determining conduction velocity and, consequently, in the
timing and synchronization of neural activation. Noninvasive measurement of axon radii …

Biophysical models of diffusion in white matter have been center-stage over the past two
decades and are essentially based on what is now commonly referred to as the “Standard …

A magnetic resonance imaging method is presented for quantifying the degree to which
water diffusion in biologic tissues is non‐Gaussian. Since tissue structure is responsible for …

The biophysical modeling efforts in diffusion MRI have grown considerably over the past 25
years. In this review, we dwell on the various challenges along the journey of bringing a …

Translational motion in solution, either diffusion or fluid flow, is at the heart of chemical and
biochemical reactivity. Nuclear Magnetic Resonance (NMR) provides a powerful non …

Following a brief review of Fick's laws and the theory of diffusion in a homogeneous
medium, we consider the application of the Fickian model to diffusion in nanoporous …

While NMR is the most used analytical method for determining the molecular structure of
isolated chemical entities, small compounds as well as macromolecules, its capability of …

Characterizing neural tissue microstructure is a critical goal for future neuroimaging.
Diffusion MRI (dMRI) provides contrasts that reflect diffusing spins' interactions with myriad …