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. Author manuscript; available in PMC: 2015 Mar 21.
Published in final edited form as: Analyst. 2014 Mar 21;139(6):1355–1363. doi: 10.1039/c3an02400h

Figure 1.

Figure 1

(A) Illustration of the topographical layout of the PMMA μSPE device showing three separate beds with micropillars used for the affinity capture of biotinylated membrane proteins. (B) SEM image of the μSPE capture bed. (C) A photograph of the assembled PMMA μSPE device.