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. Author manuscript; available in PMC: 2018 Feb 24.
Published in final edited form as: ACS Appl Mater Interfaces. 2018 Jan 9;10(3):2275–2281. doi: 10.1021/acsami.7b12145

Figure 1.

Figure 1

A schematic of the nine PEG hydrogels tested in this study. Throughout the results section, we will refer to a hydrogel sample by their thickness-stiffness (bottom and left axes), which was fabricated using the recipe noted on the top and right axes (precursor volume (μL) versus PEG concentration (wt%)). All PEG hydrogels were immobilized on glass slides.