Parameter sensitivity analysis of surface plasmon resonance biosensor through numerical simulation
Islam, Md. Saiful, Kouzani, Abbas Z., Dai, Xiu J. and Michalski, Wojtek P. 2010, Parameter sensitivity analysis of surface plasmon resonance biosensor through numerical simulation, in IEEE/ICME 2010 : Proceedings of the 2010 IEEE/ICME International Conference on Complex Medical Engineering, IEEE, Gold Coast, Queensland, pp. 171-176.
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Surface based analytical tools have gained more importance for rapid, sensitive and label-free monitoring of molecular recognition events. Surface plasmon resonance (SPR) has played a prominent role in real time monitoring of surface binding events. SPR is increasing its significance especially for the study of ultrathin dielectric layer. This paper investigates the role of thin films of gold, silver and aluminium for protein detection in SPR biosensors. It is shown that the sensitivity, which is indicated by the shift of plasmon dip, is not linearly related to the thickness of protein but quadratic over a specific range. The approach involves a plot of a reflectivity curve as a function of the angle of incidence.
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