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Fig. 4 | Nanoscale Research Letters

Fig. 4

From: Sustained, Controlled and Stimuli-Responsive Drug Release Systems Based on Nanoporous Anodic Alumina with Layer-by-Layer Polyelectrolyte

Fig. 4

Environmental scanning electron microscope images of the top views a without polyelectrolyte coat, b with two polyelectrolyte bilayers, and c with eight polyelectrolyte bilayers. Circles about 124 and 136 are drawn in the images. The EDX measurements for cross section samples without polyelectrolyte coating (d) and with polyelectrolyte coating (e)

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