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- Title
Plasmonic wave assessment via optomechatronics system for biosensor application.
- Authors
Abdullah, Muhammad Rosli; Harun, Noor Hasmiza; Ibrahim, Siti Noorjannah; Wahab, Azimah Abdul; Jamilan, Mohd Azerulazree
- 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 (θb) and critical (θc) for generating plasmonic resonance (θr). 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 θr and θ c 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.
- Subjects
BIOSENSORS; LIQUID crystal displays; PLASMONICS; STEPPING motors; BOROSILICATES; BREWSTER'S angle
- Publication
International Journal of Electrical & Computer Engineering (2088-8708), 2024, Vol 14, Issue 2, p1382
- ISSN
2088-8708
- Publication type
Article
- DOI
10.11591/ijece.v14i2.pp1382-1389