Fig. 2: Finite element analyses (FEAs) investigating the effect of geometric properties on mechanical response. | Nature Communications

Fig. 2: Finite element analyses (FEAs) investigating the effect of geometric properties on mechanical response.

From: Biomimetic microstructure design for ultrasensitive piezoionic mechanoreceptors in multimodal object recognition

Fig. 2

a A 3D plot comparing the displacement of HM-S and bulk hydrogel mechanoreceptor under a fixed load. b Schematic demonstration of the device’s modeling structure, surface morphology, and contact potential. (H and D represent the height and caliber of the cone, respectively. PDMS: Polydimethylsiloxane; PVA/MXene: Polyvinyl alcohol/Ti3C2Tx). c Schematic of the modeled circuit and comparison of capacitance changes (ΔC/C0) between microneedle and bulk structures versus external stimuli. (Cobject, Cbulk, Cair, Ccone, and Cbase represent the capacitances of the contacting object, bulk structure device, air, cone part of the HM, and base part of the HM). d Comparisons of electric field distribution, and e energy density between the bulk mechanoreceptor and HM-S.

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