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Multifunctional Hydrogel Sensors
In article number 2306820, Ran Tao, Qingsheng Yang, Kun Jia, and co‐workers present a multifunctional hydrogel sensor with patterns of curved macrocracks. The sensor exhibits a high sensitivity and a wide detection range for strain and tactile sensing. This hydrogel sensor shows potential in the application of human–machine interfaces and intelligent soft machines...
Multi‐sensing in simple devices, but with a high sensitivity and a large detection range, is desirable for soft machines. Stretchable sensors based on the resistance changes of bulk ionic hydrogels are inherently limited by the single function and low sensitivity at small deformations. Here, a design enabled by a highly cracked hydrogel (HCHG) that is hypersensitive to tensile strain, bending, and...
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