Silicon carbide and zirconium nitride-based surface plasmon resonance sensors for detecting Serratia marcescens and Micrococcus lysodeikticus.

A novel surface plasmon resonance (SPR) biosensor design for point-of-care detection of different bacteria is presented. It consists of a SiO prism, metal (Ag), silicon carbide (SiC), 2D materials of zirconium nitride (ZrN), and a sensing medium. The proposed structure's angular reflectivity is investigated using the transfer matrix method (TMM) following optimization of the Ag and SiC layer thicknesses.