Recent improvements on surface acoustic wave sensors based on graphenic nanomaterials

Surface acoustic wave (SAW) sensors enhanced by a graphenic sensitive layer offer improved electrical response uniformity, and recent research has explored their potential for use in point-of-care platforms. These devices offer a unique combination of cost effectiveness, ease of handling, manufacturability, and remarkable sensor performance. This article summarizes the latest advancements in SAW sensors with graphenic-based nanomaterials, including their fabrication, operation mechanisms, and properties. Several recent studies are reviewed and compared to conventional SAW sensors. Furthermore, the challenges and prospects of using graphenic-based structures to enhance SAW devices and produce rapid actionable results are discussed.