fig6

Figure 6. Flexible EGaIn-AgNPs electrodes for plant electrical signal monitoring. (A) Experimental setup for testing electrical signals of plants under external stimuli (mechanical stimulation and trauma); (B) Demonstration of the lightweight and conformal properties of EGaIn-AgNPs electrodes applied to plant surfaces; (C) The complete process of leaf closure caused by external stimulation of Venus flytrap; (D) The electrical signal response of Venus flytrap when touched by an external source. The inset shows a magnified image of one of the electrical signals; (E) The electrical signal response of Mimosa pudica when touched by an external source. The inset shows a magnified image of one of the electrical signals; (F) The process of leaf closure caused by trauma of Mimosa pudica and signal transmission to the rest of the body; (G) The electrical signal response of Mimosa pudica when it is injured by cutting; (H) The electrical signal response of Mimosa pudica when its leaves are burned. EGaIn-AgNPs: Eutectic gallium indium-silver nanoparticles.