Fig. 3: Adhesion force analysis and amplification.
a The selected snapshots and the schematic images showing the dynamics of air shell and water bridge during the stretching. Here, the hybrid transparent glass plate is set as the top visualization window. The dark red region with the dotted line and the light red region with the solid line are the contact areas of water bridge on the top glass plate and bottom Al plate, respectively. Here, the scale bar is 1 cm. b The variation of theoretical and experimental adhesion force as a function of RSHL/R. Our theoretical results show good agreement with the experimental measurements. c The variation of adhesion strength as a function of sample size R. When we kept RSHL/R at 0.5 and increase the R, the adhesion strength can be stabilized at ~1.75 kPa, suggesting the scalability of our design. d The variation of the theoretical and experimental adhesion forces as a function of air shell number. The error bars in b–d denote the standard deviations of five measurements.
