Glucose and sucrose analysis in daucus carota extract using optical tapered fibre sensor with GOU-AuNP composite layer synthesization

Daud, Suzairi and Bakhtiar, Hazri and Ahmad Zaini, Muhammad Ilham and Ahmad Noorden, Ahmad Fakhrurrazi and Abd Aziz, Muhammad Safwan and Krishnan, Ganesan and Abdul Kadir@Jaafar, Muhammad Zamzuri (2023) Glucose and sucrose analysis in daucus carota extract using optical tapered fibre sensor with GOU-AuNP composite layer synthesization. In: International Laser Technology and Optics Symposium 2022 (iLATOS 2022), 20th - 22nd September 2022, Virtual, Online.

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Abstract

Tapered single-mode fibre (SMF) immobilized with glucose oxidase enzyme (GOD) and gold nanoparticles (AuNP) for the recognition of glucose and sucrose elements have been proposed. A tapered fibre was fabricated using a flame heating technique to improve the sensitivity of the fibre-based sensor. By taking advantage of amine groups in 3-aminopropyl triethoxysilane (APTES), GOD and AuNP are functionalized onto the tapered region of SMF through covalent interaction. The developments of the immobilized tapered fibre sensor for the analysis of glucose and sucrose concentration in different concentrations of the solution and types of carrots extracts were discussed in this paper. The solution concentrations of 0.1, 0.2, and 0.3 g/ml of glucose and sucrose were used to analyze the sensitivity of the fibre sensor. The extracts of baby carrots, imported carrots, and organic carrots were used to determine the existence of glucose and sucrose in these carrots. We demonstrated the sensitivities of GOD-immobilized fibre for 0.00672, 0.00722, 0.00902, and 0.00921 a.u/nm in terms of their glucose solutions, baby carrots, imported carrots, and organic carrots, respectively. Meanwhile, the sensitivities of AuNP-immobilized fibre were found to be 0.000030, 0.000026, 0.000012, and 0.000024 a.u/nm, respectively

Item Type:	Proceeding Paper (Slide Presentation)
Subjects:	Q Science > QC Physics
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Science Kulliyyah of Science > Department of Physics
Depositing User:	Dr Ahmad Fakhrurrazi Ahmad Noorden
Date Deposited:	01 Nov 2023 10:33
Last Modified:	01 Nov 2023 10:33
URI:	http://irep.iium.edu.my/id/eprint/107789

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