fig1
From: All 3D-printed high-sensitivity adaptive hydrogel strain sensor for accurate plant growth monitoring
Figure 1. Design of an integrated 3D printing strain sensing device. (A) Integrated 3D-printed strain sensing device for plant growth monitoring; (B) Schematic diagram of the multi-material structure of the strain sensing device. The integrated device contains a four-layer structure: PDMS substrate layer, PVA flexible substrate layer, PEDOT:PSS-PVA sensing layer, and PDMS encapsulation layer; (C) Printing process of integrated strain sensor devices. PDMS: Polydimethylsiloxane; PVA: polyvinyl alcohol; PEDOT:PSS: poly(3,4-ethylenedioxythiophene):polystyrene sulfonate.
