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. Author manuscript; available in PMC: 2017 Feb 18.
Published in final edited form as: Angew Chem Int Ed Engl. 2016 Jan 25;55(8):2796–2800. doi: 10.1002/anie.201511052

Figure 4.

Figure 4

Ex vivo delivery of fluorescein diacetate from superhydrophobic devices. Photographs of tension-responsive device integrated with esophageal stent (ε = 1.0) and fluorescein diacetate delivery (yellow, green) to bovine esophagus under (a) white and (b) UV light. Scale bar (white) = 20 mm. (c) Representative bright field (left) and fluorescent (right) microscopy images of esophagus cross-section after delivery. T denotes esophageal tissue and L denotes lumen space. Scale bar (red) = 2.5 mm; yellow arrow represents analysis profile. (d) Fluorescence intensity profile across esophagus cross-section. Blue dotted line represents mucosal-device boundary; error bars denote ± SD for n = 4.