Plasmonic wave assessment via optomechatronics system for biosensor application

Abdullah, Muhammad Rosli and Harun, Noor Hasmiza and Ibrahim, Siti Noorjannah and Abdul Wahab, Azimah and Jamilan, Mohd Azerulazree (2024) Plasmonic wave assessment via optomechatronics system for biosensor application. International Journal of Electrical and Computer Engineering (IJECE), 14 (2). pp. 1382-1389. ISSN 2088-8708

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Abstract

Transduction biosensor (mass-based, optical and electrochemical) involves analysis, recognition and amplification in the acquired sample. In this work, the plasmonic-based biosensor was employed without using tags. It is crucial to determine angles of Brewster (Ɵb) and critical (Ɵc) for generating plasmonic resonance (Ɵr). The objective is to verify a cost-effective plasmonic biosensor through Fresnel simulation and experimentation of a developed optomechatronics system. The borosilicate glass, Au and Air layers were simulated with the Winspall 3.02 simulator. The optomechatronics system consists of: 1-optics (650 nm laser, slit, polarizer, photodiode), 2-mechanical (bipolar stepper motors, gears, stages) and 3-electronics (PIC18F4550, liquid crystal display (LCD) and drivers). Later, the software performs angular interrogation by reading the reflected beam from a rotating prism at 0.1125. Experimentation to simulation accuracy indicates that percentage differences for Ɵr and Ɵc are 1% and 0.2%, respectively. In conclusion, excellence verification was successfully achieved between experimentation and simulation. It proved that the lowcost optomechatronics system is capable and reliable to be deployed for the biosensor application.

Item Type:	Article (Journal)
Uncontrolled Keywords:	Biosensor Electromagnetic Microstepping Optomechatronics Plasmonic P-polarized Resonance
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering Kulliyyah of Engineering > Department of Electrical and Computer Engineering
Depositing User:	Siti Noorjannah Ibrahim
Date Deposited:	16 Jan 2025 12:45
Last Modified:	16 Jan 2025 14:21
URI:	http://irep.iium.edu.my/id/eprint/118387

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