Enhanced Performance of BK7-Ag-WS₂-Ni-Graphene Surface Plasmon Resonance Sensor for Glucose Detection in Urine

Diabetes is speedily developinga grave and life-foreboding illness. It touches 415 million people global and is a primary reason of death amid those matured 20 to 59. It is indispensable to acquire a quick recognition, precise, and sensitive glucose device. In this present research study, we demonstrated highly effective surface plasmon resonance sensors made of graphene, silver (Ag), nickel (Ni), and prism (BK₇) layers. The findings demonstrate the extremely high sensitivity of the suggested sensors. In addition, the Ag, Ni, and WS₂ layer thicknesses have been fine-tuned to attain optimal device functioning. The optimal thicknesses of Ag, Ni, and WS₂ for the SPR sensor are 80 nm, 10 nm, and 1.6 nm, respectively. This yields the best results. Finally, an investigation is conducted into the suggested sensor’s sensitivity in a biomedical setting and found sensitivity is 280.49461 deg/RIU.