Diffusion of colloids at short times

Reduction of Diffusion-Weighted Imaging Contrast of Acute Ischemic Stroke at Short Diffusion Times.

BACKGROUND AND PURPOSE Diffusion-weighted imaging (DWI) of tissue water is a sensitive and specific indicator of acute brain ischemia, where reductions of the diffusion of tissue water are observed acutely in the stroke lesion core. Although these diffusion changes have been long attributed to cell swelling, the precise nature of the biophysical mechanisms remains uncertain. METHODS The poten...

Equilibrium Phases of One-patch Colloids at Short Interaction Range

Diffusion influenced reactions at short times: Breakdown of the Debye–Smoluchowski description

Articles you may be interested in Short-time kinetics of an irreversible bimolecular solution reaction: Asymptotic prediction by a non-Markovian Smoluchowski approach Smoluchowski-type theory of stochastically gated diffusion-influenced reactions Geminate recombination in excitedstate protontransfer reactions: Numerical solution of the Debye–Smoluchowski equation with backreaction and compariso...

Numerical Simulations of Double-Wave-Vector Diffusion-Weighting Experiments with Multiple Concatenations at Short Mixing Times

Introduction Double-wave-vector diffusion-weighting experiments where two diffusion weighting periods are applied successively in a single acquisition [1] are a promising tool to investigate tissue microstructure. For instance, cell or compartment sizes can be estimated from the signal modulation signal with the angle between the two wave vectors if a short mixing time between the two diffusion...

Higher anisotropy in Diffusion Spectrum Imaging at longer diffusion times

Target audience Scientists and clinicians interested in Diffusion Spectrum MRI and its methodological development Purpose To demonstrate that Diffusion Spectrum Imaging at longer diffusion times gives rise to higher anisotropy measures, as illustrated by using a stimulated echo sequence in a clinical scanner in vivo. Diffusion Spectrum MRI (DSI) [1] has become a powerful tool for non-invasive i...