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. Author manuscript; available in PMC: 2017 Oct 1.
Published in final edited form as: Precis Eng. 2016 Apr 2;46:88–95. doi: 10.1016/j.precisioneng.2016.04.003

Fig. 8.

Fig. 8

(a) Optical diameter measurements differed from SEM by 0.35 ± 0.36 µm across a wide range of diameters (0–50 µm). (b) For the subset of small (0–3 µm o.d.) micropipettes, optical diameter measurements differed from SEM by 0.40 ± 0.19 µm.