Correspondence to Padmaja Sankaridurg, Brien Holden Vision Institute, Sydney 2052, New South Wales, Australia; p.sankaridurg{at}bhvi.org; Dr Xun Xu; drxuxun{at}sjtu.edu.cn Purpose To develop ...

The bending force of the balloon actuator was quantified by force equilibrium using a custom designed experimental approach. The balloon actuator and an elastomeric rubber band (6.35 cm × 0.15 cm) ...