H. Ahmad, M.J.M. Makhfuz, N. Yusoff
The fabrication and optimization of a surface plasmon resonance (SPR) based fiber optic sensor for glucose detecti on 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. © 2023, National Institute of Optoelectronics. All rights reserved.
Photonics Research Centre, Universiti Malaya, Kuala Lumpur, 50603, Malaysia; Department of Physics, Faculty of Science, Universiti Malaya, Kuala Lumpur, 50603, Malaysia; Universiti Kuala Lumpur British Malaysian Institute (UniKL BMI), Batu 8, Jln Sungai Pusu, Selangor, 53100, Malaysia; Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang, Jalan Semarang 5, Malang, 65145, Indonesia