Abstract
We proposed here a novel surface plasmon resonance (SPR) sensor configuration based on silicon dioxide (SiO2) and Ti3C2Tx (MXene) with bi-metal layers for detection the biomolecules using angular interrogation method. Whereas Ti3C2Tx are greater contact area, metallic conductivity and hydrophilic functionalized surface termination for biological molecules present in aqueous solution. Ti3C2Tx is used as a bio-recognition (BRE) layer. Through theoretical analysis, we calculated the several performance parameters at optimized thickness of Cu and Ni layer. Our result shows the maximum sensitivity of 290°/RIU at optimized Cu and Ni layer thicknesses. It is observed that the use of SiO2 layer enhances performance parameters of proposed sensor. Also, the effect of the increasing the Ni and SiO2 layer on the reflectance curve is analyzed with increasing the RI of sensing medium.
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Kumar, R., Pal, S., Saini, J.P., Prajapati, Y.K. (2022). Sensitivity Enhancement of Ti3C2Tx Based Bimetallic SPR Biosensor Using SiO2. In: Dhawan, A., Mishra, R.A., Arya, K.V., Zamarreño, C.R. (eds) Advances in VLSI, Communication, and Signal Processing. Lecture Notes in Electrical Engineering, vol 911. Springer, Singapore. https://doi.org/10.1007/978-981-19-2631-0_14
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