Figure 4 : Characterization of the bending behaviour of ionoprinted gel slabs in ethanol.

From: Reversible patterning and actuation of hydrogels by electrically assisted ionoprinting

Figure 4

(a) Bending curvature versus immersion time in EtOH (ethanol) for ionoprinted gels of various widths and a constant thickness of 3 mm. (b) bending curvature versus immersion time in EtOH for ionoprinted gels of various thickness and a constant width of 5 mm. (c) bending curvature as a function of the gel thickness. The simulation curve corresponds to Timoshenko’s model corrected with a fitting parameter of 0.5. Scale bar, 1 cm; (d) mass of a fully ionoprinted gel and a virgin one after immersion in EtOH. The amount of water rapidly expelled from the fully ionoprinted gel is compared with the virgin one. Inset gridlines are 5 mm apart. All of the above experiments were conducted in triplicate and error bars represent s.d.