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. Author manuscript; available in PMC: 2015 Apr 1.
Published in final edited form as: Adv Healthc Mater. 2013 Sep 12;3(4):500–507. doi: 10.1002/adhm.201300260

Figure 3.

Figure 3

Crosslinking density and applied voltage have a deterministic effect on electrical collapse, allowing dynamic arrays of gels that are individually addressed. a) Cryogel diameter is plotted versus time for gels composed of 4% wt AAc, 4% wt AAm and crosslinked at the indicated BA concentrations while exposed to 50 V in deionized water. b) Cryogel diameter is plotted versus time for gels again composed of 4% wt AAc, 4% wt AAm, crosslinked using 0.1% wt BA when exposed to the different voltages (see legend). c) An array of 4% wt AAc, 4% wt AAm cryogels, crosslinked with 0.1% wt BA was created to demonstrate the ability to easily control individual gel collapse. Both configurational (top row) and chromatic (bottom row) optical modulations were readily achieved by deciding which voltages nodes to excite (50 V for 3 min). In (a) and (b), values represent mean and standard deviation (N = 3).