From Identification to Intelligence: RFID Sensors in the Healthcare Internet of Things

Radio Frequency Identification implemented into Internet of Things (IoTs) frames transforms healthcare into a connected, data-driven, and patient-centered prototype. This technology evolved into a sensing one, enabling the monitoring of safety of pharmaceuticals, the tracking of medical assets, the vital signs and personalized care. The current chapter describes the basic principles of RFID systems, including tag types, frequency reserved bands, and sensor topologies. Then, we present their applications for cardiovascular monitoring, asset management, medication tracking, environmental monitoring, and senior healthcare. A particular focus is given to highlight recent innovative technologies: starting from chipless RFIDs to implantable smart prostheses. Finally, regulatory and standards considerations are rapidly discussed, underscoring data privacy and safety concerns.