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. Author manuscript; available in PMC: 2019 Dec 1.
Published in final edited form as: Int J Pharm. 2018 Sep 27;552(1-2):217–224. doi: 10.1016/j.ijpharm.2018.09.065

Figure 4. Effect of slicing and hatching distance on rhodamine B release from TPP woodpile structures.

Figure 4.

A-F: Representative scanning electron micrographs of PEG woodpile structures with 10 μm cylinders created using a slicing distance of 0.05, 0.1 or 0.15 μm at constant hatching distance or a hatching distance of 0.05, 0.1 or 0.15 μm at a constant slicing distance, respectively. Scale bars represent 25 μm. G-H: Release profiles (data points) and best-fit Korsmeyer-Peppas regression curves (lines) of rhodamine B diffusion from the devices shown in A-F with varying slicing (G) or hatching (H) distances. Error bars represent standard error of the mean; n=3.