Evaluation of metered dose inhaler spray velocities using phase Doppler anemometry (PDA).

@article{Liu2012EvaluationOM,
  title={Evaluation of metered dose inhaler spray velocities using phase Doppler anemometry (PDA).},
  author={Xiaofei Liu and William Hill Doub and Changning Guo},
  journal={International journal of pharmaceutics},
  year={2012},
  volume={423 2},
  pages={235-9}
}
Droplet velocity is an important parameter which can significantly influence inhalation drug delivery performance. Together with the droplet size, this parameter determines the efficiency of the deposition of MDI products at different sites within the lungs. In this study, phase Doppler anemometry (PDA) was used to investigate the instantaneous droplet velocity emitted from MDIs as well as the corresponding droplet size distribution. The nine commercial MDI products surveyed showed… CONTINUE READING