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. Author manuscript; available in PMC: 2010 Apr 30.
Published in final edited form as: Mater Sci Eng R Rep. 2009 Apr 30;29(3):685–690. doi: 10.1016/j.msec.2008.12.016

Figure 3.

Figure 3

(a) Optical image showing the PDMS membrane and thick cavity walls, (b) Cross-sectional SEM image showing the thickness and uniformity of a typical 30 μm thick PDMS film.