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. 2023 Mar 22;9(12):eadf5551. doi: 10.1126/sciadv.adf5551

Fig. 2. Evaluation of materials properties for biodegradable Peano-HASEL actuators.

Fig. 2.

(A) Working principle of a Peano-HASEL (hydraulically amplified self-healing electrostatic) actuator when (left) voltage is turned off and (right) voltage is turned on. (B) Components of NaCl-infused gelatin hydrogel electrodes. (C) Dynamic viscosity plotted over conductivity for three biodegradable oils: ester-based FR3 liquid dielectric, olive oil, and sunflower oil [50 and 5 centistokes (cSt) of silicone oils as reference]. (D) Maxwell stress plotted over yield strength for four biodegradable thin films: BOPLA, biopolyester, and two starch blends from NaKu and Naturabiomat (see also table S1 for experimental values).