Impact of acoustic airflow on intrasinus drug deposition: New insights into the vibrating mode and the optimal acoustic frequency to enhance the delivery of nebulized antibiotic - CIS / LINA : Laboratoire Interdisciplinaire d'Etude des Nanoparticules Aérosolisées Access content directly
Journal Articles International Journal of Pharmaceutics Year : 2015

Impact of acoustic airflow on intrasinus drug deposition: New insights into the vibrating mode and the optimal acoustic frequency to enhance the delivery of nebulized antibiotic

Abstract

Aim: We investigated the impact of vibrating acoustic airflow, the high frequency (f ≥ 100 Hz) and the low frequency (f ≤ 45 Hz) sound waves, on the enhancement of intrasinus drug deposition. Methods: 81mKr-gas ventilation study was performed in a plastinated human cast with and without the addition of vibrating acoustic airflow. Similarly, intrasinus drug deposition in a nasal replica using gentamicin as a marker was studied with and without the superposition of different modes of acoustic airflow. Results: Ventilation experiments demonstrate that no sinus ventilation was observed without acoustic airflow although sinus ventilation occurred whatever the modes of acoustic airflow applied. Intrasinus drug deposition experiments showed that the high frequency acoustic airflow led to 4-fold increase in gentamicin deposition into the left maxillary sinus and to 2-fold deposition increase into the right maxillary sinus. Besides, the low frequency acoustic airflow demonstrated a significant increase of 4-fold and 2-fold in the right and left maxillary sinuses respectively. Conclusion: We demonstrated the benefit of different modes of vibrating acoustic airflow for maxillary sinus ventilation and intrasinus drug deposition. The degree of gentamicin deposition varies as a function of frequency of the vibrating acoustic airflow and the geometry of the ostia.
Fichier principal
Vignette du fichier
2015_ HAL_Leclerc Int. Journal of Pharmaceutics.pdf (1.81 Mo) Télécharger le fichier
Origin : Files produced by the author(s)
Loading...

Dates and versions

hal-01272228 , version 1 (10-02-2016)

Identifiers

Cite

Lara Leclerc, Amira El Merhie, Laurent Navarro, Nathalie Prévôt, Marc Durand, et al.. Impact of acoustic airflow on intrasinus drug deposition: New insights into the vibrating mode and the optimal acoustic frequency to enhance the delivery of nebulized antibiotic. International Journal of Pharmaceutics, 2015, 494 (1), pp.227-234. ⟨10.1016/j.ijpharm.2015.08.025⟩. ⟨hal-01272228⟩
333 View
375 Download

Altmetric

Share

Gmail Facebook X LinkedIn More