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. 2014 Dec 30;9(1):117–123. doi: 10.1021/nn507097k

Figure 1.

Figure 1

Preparation and characterization of PEDOT/Zn micromotors. (a) Schematic of the in vivo propulsion and tissue penetration of the zinc-based micromotors in mouse stomach. (b) Preparation of PEDOT/Zn micromotors using polycarbonate membrane templates: (I) deposition of the PEDOT microtube, (II) deposition of the inner zinc layer, and (III) dissolution of the membrane and release of the micromotors. (c) Scanning electron microscopy (SEM) image (left) of the PEDOT/Zn micromotors and the corresponding energy-dispersive X-ray spectroscopy (EDX) data (right) of elemental Zn in the micromotors. Scale bar, 5 μm. (d) Time lapse images (1 s intervals, I–IV) of the propulsion of PEDOT/Zn micromotors in gastric acid under physiological temperature (37 °C). Scale bar, 20 μm.