Transparent, Bioelectronic, Natural Polymer AgNW Nanocomposites Inspired by Caviar

Recent breakthroughs in bioelectronic devices have stemmed from developments involving nanocomposites. Sepsis, preeclampsia, vascular dementia, and heart disease are serious conditions that will benefit from the continuous monitoring of pulse pressure (PP) and temperature (T) to improve medical insights and care. However, current clinical instruments are bulky, and lacking discreetness, while nanocomposites currently lack measurement accuracy. A thin (99%) and extremely electromechanically sensitive (gauge factor, G >200). In addition to a considerable temperature coefficient of resistance (TCR) of 4.58 ± 0.95% °C−1 and excellent signal stability, skin‐interfaced devices measured cuff‐less PP and skin T with an accuracy conducive to clinical instruments. The nature and geometry of caviar lends toward potential food‐based electronics with tunable properties. In this study, seaweed‐based micro‐capsules based on molecular gastronomy infused with silver nanowires (AgNWs) act as highly transparent sensing components in electronic skins. The ability of the e‐skins to measure heart rate and pulse pressure is demonstrated to equal a cuffed British Heart Foundation device.