Spray freeze dried large porous particles for nano drug delivery by inhalation

INTRODUCTION: Tuberculosis (TB) is a bacterial infection caused by Mycobaterium tuberculosis. TB has recently reemerged as a disease of interest for improved drug delivery, with a focus on leveraging the benefits of anti-tubercular drug nanoparticle formulation (1, 2). Drug nanoparticles can target infected cells and provide a large payload, but the optimal administration route remains uncertain (3). While oral formulations are most preferred, the passage of nanoparticles across the gastrointesintal tract is challenging. On the other hand, intravenous injection of nanosuspen…postprin