Nanoscale NMR velocimetry by means of slowly diffusing tracer particles.

@article{Wassenius2004NanoscaleNV,
  title={Nanoscale NMR velocimetry by means of slowly diffusing tracer particles.},
  author={Helena Wassenius and Paul T. Callaghan},
  journal={Journal of magnetic resonance},
  year={2004},
  volume={169 2},
  pages={250-6}
}
The resolution of NMR velocimetry is inherently limited by random displacements due to molecular self-diffusion, and has so far not extended below a few tens of microns. We report here an extension to the nanoscale domain, a result achieved by the use of slowly diffusing, NMR-visible core-shell latex particles. These particles comprise an oil core surrounded by a solid polymer shell, making spheres of diameter 370 nm. Using these particles in the annulus of a concentric cylinder Couette cell… CONTINUE READING