Microscale Sensor Fabrication on Curved Needle Surfaces

Abstract Sensor-integrated needles with impedance or other electrochemical sensors have gained increased attention in research. Their potential use is widespread and covers applications such as early disease diagnostics needle guidance for needle-based interventions. However, fabrication sensor integration are crucial parts of realizing functionalized needles. In this paper, a review existing research on microscale arrays curved surfaces presented. It focusses medical excluding needle-type sensors. Especially, means fabrications including flexible thin-film-based photolithography discussed. Although they provide satisfactory results, no manufacturing method yet ready bulk production.