Devices made from conventional conductive bulk supplies utilizing advanced microfabrication methods usually are restricted to being rigid and in some cases, versatile but not strethcable. The primary motive is the mismatching mechanics between these conventional materials and the elastomeric supplies they have been bonded with, which causes materials delimination and/or cracks at delicate/arduous materials interfaces beneath strains. Conductive nanomaterials probably provide new opportunity to deal with this challenge. Their availability in various sizes and shapes allows us to create composites with numerous dimensions, corresponding to 1D conductive traces, 2D film, and 3D sponge-like architectures. These have opened the door for fabrication of stretchable interconnects, circuits, power storage units, antennas, LEDs, etc. The premise of utilizing conductive nanomaterials composites in sensors is that any stimulus or change will generate a measurable electrical impulse. These impulses will be broadly categorised as piezoelectric, triboelectric, capacitive, and resistive responses. Relying on the sensitivity required and the choice of electrical impulse to be measured, the device development possibly tailored to provide one of the 4 sorts of electrical responses. Resistive sensors in addition to being the best to construct are additionally the best to measure, which is the essential purpose for a lot of publications in this space. The working mechanism of resistive sensors based mostly on the constituent conductive materials and their percolation community will likely be discussed in detail. Composition of conductive inks fabricated utilizing wet chemistry methods, and nanomaterials utilizing dry methods, their subsequent applications are coated as nicely. The thrilling applications referring to human well being and effectively-being will also be described. Lastly a brief outlook of the future of wearable sensors as "invisibles" will likely be presented.
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