Figure 1 | Scientific Reports

Figure 1

From: Sirolimus-coated Eustachian tube balloon dilatation for treating Eustachian tube dysfunction in a rat model

Figure 1

Schematic of sirolimus (SRL)-coated balloon catheter. (a) Schematic of SRL coating onto the balloon surface. (b) Graph shows the in vitro release profiles of the SRL from the balloon catheter. (c) Representative SEM images show the morphological characterization of the drug-free and SRL-coated balloon surfaces. (d) Optical images of drug-free and SRL-coated balloon surfaces were analyzed using ImageJ (U.S. National Institutes of Health, Bethesda, MD) to measure the coating thickness.

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