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Advanced Functional Materials

Advanced Functional Materials

IF: 18.5
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Jellyfish‐Inspired High‐Sensitivity Pressure‐Temperature Sensor

Published:8 December 2024 DOI: 10.1002/adfm.202417715
Huiwen Ren, Wangyang Li, Hexin Li, Yanan Ding, Jianyang Li, Yuming Feng, Zhen Su, Xin Zhang, Li Jiang, Hong Liu, PingAn Hu

Abstract

In recent years, biomimetic high-sensitivity tactile sensors increasingly become a research focus. Specifically, hydrogel tactile sensors based on ionic-electronic mechanisms gain widespread attention due to their excellent pressure sensitivity. However, due to the saturation deformation of sensitive elements, these sensors struggle to accurately measure pressure under high-pressure conditions. Additionally, as hydrogels cause signal drift under constant pressure and ionic-electronic mechanisms are susceptible to temperature interference, these characteristics limit their application. Inspired by the jellyfish's “mesoglea” and “ectoderm” structures, a novel tactile sensor is developed that combines the ionic-electronic mechanism with a filling structure. This sensor integrates the hydrogel with a flexible framework to create a jellyfish-like umbrella structure. This design achieves extremely high pressure sensitivity and improves signal drift. By utilizing the different response characteristics of the capacitance and resistance values of a single sensing element to pressure and temperature changes, it enables simultaneous measurement of temperature and pressure, thereby enhancing its potential for application in wearable electronics and robotics.

Substances (2)

Materials
Procduct Name CAS Molecular Formula Supplier Price
Sodium persulfate 7775-27-1 Na2O8S2 368 suppliers $26.80-$1660.00
ETHYLENE-D4 GLYCOL 2219-51-4 C2H2D4O2 67 suppliers $55.00-$1121.80

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