Fig. 4: Structural analysis and Fe element distribution in the ASC–ECM–Fe3O4 NP–VEGF scaffolds.
From: Extracellular matrix sheet modified with VEGF-loaded nanoparticles for bladder regeneration
A–C SEM images of the scaffolds. D, E SEM images and EDS spectra of the distribution of Fe in the scaffolds. F TEM images of the scaffolds. G, H TEM images and EDS spectra showing Fe element distribution in the scaffolds. Scale bars = 10 μm (A), 2 μm (B), 1 μm (C, D), 200 nm (F), and 30 nm (G, H).
