Velocimetry in microchannels using photobleached molecular tracers: a tool to discriminate solvent velocity in flows of suspensions.

@article{Schembri2015VelocimetryIM,
  title={Velocimetry in microchannels using photobleached molecular tracers: a tool to discriminate solvent velocity in flows of suspensions.},
  author={Florinda Schembri and Hugues Bodiguel and Annie Colin},
  journal={Soft matter},
  year={2015},
  volume={11 1},
  pages={169-78}
}
We report the development and analysis of a velocimetry technique based on the short time displacement of molecular tracers, tagged thanks to photobleaching. We use confocal microscopy to achieve a good resolution transverse to the observation field in the direction of the velocity gradient. The intensity profiles are fitted by an approximate analytical… CONTINUE READING