Nebulization and In Vitro Upper Airway Deposition of Liposomal Carrier Systems

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F24%3APU151178" target="_blank" >RIV/00216305:26210/24:PU151178 - isvavai.cz</a>

Result on the web

<a href="https://pubs.acs.org/doi/10.1021/acs.molpharmaceut.3c01146" target="_blank" >https://pubs.acs.org/doi/10.1021/acs.molpharmaceut.3c01146</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/acs.molpharmaceut.3c01146" target="_blank" >10.1021/acs.molpharmaceut.3c01146</a>

Result language

angličtina

Original language name

Nebulization and In Vitro Upper Airway Deposition of Liposomal Carrier Systems

Original language description

Liposomal carrier systems have emerged as a promising technology for pulmonary drug delivery. This study focuses on two selected liposomal systems, namely, dipalmitoylphosphatidylcholine stabilized by phosphatidic acid and cholesterol (DPPC-PA-Chol) and dipalmitoylphosphatidylcholine stabilized by polyethylene glycol and cholesterol (DPPC-PEG-Chol). First, the research investigates the stability of these liposomal systems during the atomization process using different kinds of nebulizers (air-jet, vibrating mesh, and ultrasonic). The study further explores the aerodynamic particle size distribution of the aerosol generated by the nebulizers. The nebulizer that demonstrated optimal stability and particle size was selected for more detailed investigation, including Andersen cascade impactor measurements, an assessment of the influence of flow rate and breathing profiles on aerosol particle size, and an in vitro deposition study on a realistic replica of the upper airways. The most suitable combination of a nebulizer and liposomal system was DPPC-PA-Chol nebulized by a Pari LC Sprint Star in terms of stability and particle size. The influence of the inspiration flow rate on the particle size was not very strong but was not negligible either (decrease of D-v50 by 1.34 mu m with the flow rate increase from 8 to 60 L/min). A similar effect was observed for realistic transient inhalation. According to the in vitro deposition measurement, approximately 90% and 70% of the aerosol penetrated downstream of the trachea using the stationary flow rate and the realistic breathing profile, respectively. These data provide an image of the potential applicability of liposomal carrier systems for nebulizer therapy. Regional lung drug deposition is patient-specific; therefore, deposition results might vary for different airway geometries. However, deposition measurement with realistic boundary conditions (airway geometry, breathing profile) brings a more realistic image of the drug del

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20600 - Medical engineering

Project

<a href="/en/project/GA22-20357S" target="_blank" >GA22-20357S: Measurement and computational simulation of transport of fibrous aerosols in high velocity gradient flow and interaction of fibres with a wall</a><br>

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2024

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

MOLECULAR PHARMACEUTICS

ISSN

1543-8384

e-ISSN

1543-8392

Volume of the periodical

21

Issue of the periodical within the volume

4

Country of publishing house

US - UNITED STATES

Number of pages

13

Pages from-to

1848-1860

UT code for WoS article

001184228600001

EID of the result in the Scopus database

2-s2.0-85187559186