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Nanoparticle (NP) polymer composites maintain the promise to allow materials functionalities which might be troublesome to attain in any other case, but hampered so far by the scarce management and tunability of the nanoparticle collective properties on the polymer floor, particularly for polymer foams that includes a fancy three-dimensional pore community. Right here we report on the managed and conformal in-situ coating of polydimethylsiloxane (PDMS) foams with Ag nanoparticles (NPs) with floor protection finely tunable over a wide range, from 0 to 75%, by way of the one-step room temperature discount of AgF immediately on the PDMS floor. This allows the design of AgNP electrical networks on the PDMS foam floor with tunable piezo-resistive properties, specifically, resistance at zero-strain tunable as much as an element 1000 and resistance tunable with deformation as much as an element 100. We leveraged the management of the piezoresistive properties of the AgNP electrical community fashioned on PDMS foams to manufacture versatile and wearable strain sensors with excessive sensitivity (i.e., 41.4 kPa-1), massive operation vary (>120 kPa), and low detection restrict (25 Pa). As a proof-of-concept utility in wearable biomedical electronics, the sensor was efficiently used to watch the real-time radial artery pulse wave on the human wrist of a younger male with excessive decision.
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