Monolithically 3D-printed pressure sensors for application in electronic skin and healthcare monitoring

The monolithically 3D-printed pressure sensor was demonstrated with excellent sensing performance in terms of sensitivities and reliabilities. The porous-structured dielectric was formed by casting an elastomer prepolymer into 3D-printed water-soluble templates, where the porosities were accurately controlled; hence, the sensing performances can be tuned. The flexible top and bottom electrodes were also monolithically integrated using the 3D-printed conductive thermoplastic. Finally, we presented that our sensors can be applied to the electronic skin with spatial mapping abilities and a wearable healthcare monitoring system.