Novel Efficient Surface Plasmon Resonance Biosensor for the Determination of Sucrose Concentration

There are numerous pharmacological uses for watery solution's sucrose concentration, including the preservation of food and proteins. It is imperative to create a sucrose detector that is quick, precise, and sensitive. In this communication, a surface plasmon resonance biosensor (SPRB) is employed for the determination of sucrose concentration. To achieve improved sensitivity, a Si layer is inserted between a metal (Ag) thin film and a black phosphor (BPS) layer in the proposed SPRB so that it has the design N-FK51A prism/silver/Si/BPS/ sensing medium (SM). Due to the exceptional dielectric properties of the Si layer, which include a high refraction index and low loss, it has been demonstrated that a little change in the analyte's refractive index can result in a substantial shift in the angle of resonance. By optimizing the thicknesses of the Ag, Si, and BP sheets, the suggested SPRB achieved an extraordinarily high sensitivity of 322.66 & DEG;/RIU. Due to its great sensitivity, the suggested SPRB is enticing for usage in numerous biosensing applications.