In addition to their therapeutic applications, the versatility of hybrid hydrogels makes them an appealing choice for the design of sensors and bionic devices. For instance, when Ag-coated copper NPs (Ag@Cu NPs) were mixed with a Gel matrix, the resulting material was made conductive and suitable for real-time monitoring of human motion (Figure ). The NP concentration of 10% enabled optimum conductivity to be achieved, the value of which showed a stable and reproducible variation as a function of applied stress.