Light side coupling on ZnO nanorods-coated glass substrate for lactose sensing

Jali, Mohd Hafiz and Jahava, Marlina and Md Johari, Md Ashadi and Norasikin, Mohd Adili and Mohd Yusof, Haziezol Helmi and Ahmad, Aminah (2025) Light side coupling on ZnO nanorods-coated glass substrate for lactose sensing. ENGINEERING, TECHNOLOGY AND APPLIED SCIENCE RESEARCH, 15 (3). pp. 22424-22430. ISSN 2241-4487

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Abstract

This study presents a novel sensing device for lactose detection, using ZnO nanorods on glass substrate with a light side coupling technique, as this integration enhances light scattering and adsorption, improving sensing performance. The proposed sensor was exposed to ranging lactose concentrations (0% to 100%) to validate its performance. The results were compared with a classic single light source technique to evaluate several parameters, such as sensitivity, linearity, repeatability, stability, response time, and hysteresis. Τhe experimental findings exhibited a higher sensitivity of 0.0201 V/% concentration, superior linearity of 99.61%, and improved resolution by a factor of 1.5 compared to traditional methods. Due to its cost-effectiveness, simple fabrication process, and superior performance, this sensing platform presents a viable alternative for industrial optical sensing applications, particularly in food quality monitoring and biomedical diagnostics.

Item Type:	Article
Uncontrolled Keywords:	Side coupling, Lactose, Sensor, Zinc oxide
Divisions:	Faculty Of Electrical Technology And Engineering
Depositing User:	Norfaradilla Idayu Ab. Ghafar
Date Deposited:	05 Dec 2025 03:52
Last Modified:	05 Dec 2025 03:52
URI:	http://eprints.utem.edu.my/id/eprint/29147
Statistic Details:	View Download Statistic

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