fig5

Figure 5. Fabrication process of PCL. (A) Fabrication method of PCL: (i) Schematic illustration of the generation of microdroplets; (ii) microscopic image of the PCL; (B) Relationship between the pore size and flow rate ratio of the DI water and PDMS solution. AgNW coating and encapsulation processes result in around 250 µm reduction of pore size; (C) Fabrication method of c-PCL: (i) Schematics of embedding AgNWs in the PCL, (ii) microscopic images of the c-PCL without encapsulation. The encapsulation process is not depicted. PDMS: Polydimethylsiloxane; AgNWs: silver nanowires; PCL: porous compressible layer; c-PCL: PCL (with AgNWs embedded) serving as a conductive medium; DI: deionized.