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. Author manuscript; available in PMC: 2025 May 1.
Published in final edited form as: Adv Drug Deliv Rev. 2024 Mar 5;208:115237. doi: 10.1016/j.addr.2024.115237

Figure 2. Electron Microscopy.

Figure 2.

(A) TEM images of an airway organoid cross-section exhibiting the polarized epithelium comprised of basal, secretory, brush, and multi-ciliated cells, followed by detailed visualizations of apical microvilli and cilia with their characteristic microtubule structures. Scale bars, 10 μm (left), 2 μm (right top), and 500 nm (right bottom). (B) SEM images of a partially opened airway organoid showing its 3D architecture, followed by detailed visualization of apical surfaces of secretory and multi-ciliated cells. Scale bars, 50 μm (left) and 2 μm (right). Reproduced under the terms of the Creative Commons Attribution 4.0 International License [155].