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The fabrication and optimization of a surface plasmon resonance (SPR) based fiber optic sensor for glucose detection is reported in this work. The sensing probe was prepared using an arc-shaped single-mode fiber (SMF-28) coated with gold and then a layer of MXene, 2D material. The sensitivity performance of the sensor towards glucose analyte was investigated, first with gold-coated fiber SPR sensor and then with gold that was overlayed with Ti3C2 MXene. Different glucose concentrations ranging from 0.09 M to 1.30 M were tested and the spectral response of the sensor probe towards different concentrations of glucose was analyzed. It was found that the gold-coated fiber SPR sensor yields a sensitivity of 29.60 nm/M, and 33.06 nm/M for the gold-MXene coated fiber SPR sensor. The proposed study's findings show that gold with an overlay of MXene layer has provided a better sensitivity in glucose sensing applications.
SPR sensor, MXene, 2D material, Fiber-based sensor, Arc-shaped fiber.
H. AHMAD, M. J. M. MAKHFUZ, N. YUSOFF, The optimization of optical fiber-based surface plasmon resonance sensor with Ti3C2 MXene material, Optoelectronics and Advanced Materials - Rapid Communications, 17, 9-10, September-October 2023, pp.386-397 (2023).
Submitted at: March 6, 2023
Accepted at: Oct. 9, 2023