Advancing Chloride Ion Detection in Edible Oils: Enhanced Sensitivity with NCQD/Ag Nanotriangles via Localized Surface Plasmon Resonance

Muhammad Qayyum Othman, Mohd Hafiz Abu Bakar, Nur Hidayah Azeman, Nadhratun Naiim Mobarak, Ahmad Ashrif A. Bakar, Ahmad Ashrif A. Bakar

2025

Abstract

Chloride ion detection in edible oil is crucial for food safety and preventing harmful compounds like 3-MCPD during refining. This study presents a novel method utilizing Nitrogen-Doped Carbon Quantum Dots (NCQDs) combined with Silver Nanotriangles (AgNTs) through Localized Surface Plasmon Resonance (LSPR) for chloride ion detection. The chemical properties of AgNT-NCQD enhance sensor performance by improving stability and biocompatibility while providing new binding sites for chloride ions. LSPR allows precise monitoring of the interaction between AgNT-NCQD and chloride ions, resulting in a distinct LSPR peak for accurate detection. The synergy between surface plasmon resonance and NCQDs increases sensitivity, with significant LSPR peak shifts upon chloride exposure. This technology offers a wider dynamic range and lower detection limits, demonstrating excellent selectivity for chloride ions in edible oil. The enhanced properties of NCQDs make this sensing platform vital for food quality assurance and consumer health protection.

Paper Citation

in Harvard Style

Othman M., Bakar M., Azeman N., Mobarak N. and Bakar A. (2025). Advancing Chloride Ion Detection in Edible Oils: Enhanced Sensitivity with NCQD/Ag Nanotriangles via Localized Surface Plasmon Resonance. In Proceedings of the 13th International Conference on Photonics, Optics and Laser Technology - Volume 1: PHOTOPTICS; ISBN 978-989-758-736-8, SciTePress, pages 74-78. DOI: 10.5220/0013131100003902

in Bibtex Style

@conference{photoptics25,
author={Muhammad Othman and Mohd Bakar and Nur Azeman and Nadhratun Mobarak and Ahmad Bakar},
title={Advancing Chloride Ion Detection in Edible Oils: Enhanced Sensitivity with NCQD/Ag Nanotriangles via Localized Surface Plasmon Resonance},
booktitle={Proceedings of the 13th International Conference on Photonics, Optics and Laser Technology - Volume 1: PHOTOPTICS},
year={2025},
pages={74-78},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0013131100003902},
isbn={978-989-758-736-8},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 13th International Conference on Photonics, Optics and Laser Technology - Volume 1: PHOTOPTICS
TI - Advancing Chloride Ion Detection in Edible Oils: Enhanced Sensitivity with NCQD/Ag Nanotriangles via Localized Surface Plasmon Resonance
SN - 978-989-758-736-8
AU - Othman M.
AU - Bakar M.
AU - Azeman N.
AU - Mobarak N.
AU - Bakar A.
PY - 2025
SP - 74
EP - 78
DO - 10.5220/0013131100003902
PB - SciTePress