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. Author manuscript; available in PMC: 2013 Jun 28.
Published in final edited form as: J Control Release. 2012 Apr 10;160(3):561–569. doi: 10.1016/j.jconrel.2012.04.005

Figure 1. Microneedle morphology and skin penetrative capabilities.

Figure 1

(A) Bright field micrographs of an in-plane row of five microneedles, each with a height of approximately 750μm, insert shows in greater detail the microneedle geometry. (B) En face (insert) and 10μm H&E stained histological section of human skin treated with microneedles and post-stained with methylene blue (bar = 300μm).

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