Fig. 3
From: A roadmap to pulmonary delivery strategies for the treatment of infectious lung diseases
(Figures are adapted from Refs. [95,96,97,98])
Design and operation of representative inhalation devices. The internal principle of a typical jet atomizer (A), a schematic diagram of a pMDI (B) is adapted from Ref. [96], copyright 2010, Lect Notes Eng Comp; a single-dose capsule DPI (C) is adapted from Ref [97], copyright 2021, Pharmaceutics; the schematic drawing of a SMI device structure (D). Reproduced under the terms and conditions of the Creative Commons Attribution (CCBY) license (http://creativecommons.org/licenses/by/4.0/) from Iwanaga et al. (Ref. [98])