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Cellulose and vanadium plasmonic sensor to measure Ni2+ ions


Citation

Sheh Omar, Nur Alia and Yap, Wing Fen and Ramli, Irmawati and Mohd Azmi, Umi Zulaikha and Hashim, Hazwani Suhaila and Abdullah, Jaafar and Mahdi, Mohd Adzir (2021) Cellulose and vanadium plasmonic sensor to measure Ni2+ ions. Applied Sciences-Basel, 11 (7). art. no. 2963. pp. 1-16. ISSN 2076-3417

Abstract

A novel vanadium–cellulose composite thin film-based on angular interrogation surface plasmon resonance (SPR) sensor for ppb-level detection of Ni(II) ion was developed. Experimental results show that the sensor has a linear response to the Ni(II) ion concentrations in the range of 2–50 ppb with a determination coefficient (R2) of 0.9910. This SPR sensor can attain a maximum sensitivity (0.068° ppb−1), binding affinity constant (1.819 × 106 M−1), detection accuracy (0.3034 degree−1), and signal-to-noise-ratio (0.0276) for Ni(II) ion detection. The optical properties of thin-film targeting Ni(II) ions in different concentrations were obtained by fitting the SPR reflectance curves using the WinSpall program. All in all, the proposed Au/MPA/V–CNCs–CTA thin-film-based surface plasmon resonance sensor exhibits better sensing performance than the previous film-based sensor and demonstrates a wide and promising technology candidate for environmental monitoring applications in the future.


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Official URL or Download Paper: https://www.mdpi.com/2076-3417/11/7/2963

Additional Metadata

Item Type: Article
Divisions: Faculty of Engineering
Faculty of Science
Institute of Advanced Technology
DOI Number: https://doi.org/10.3390/app11072963
Publisher: Multidisciplinary Digital Publishing Institute
Keywords: Vanadium; Cellulose; Optical sensor; Surface plasmon resonance; Nickel ion
Depositing User: Ms. Nuraida Ibrahim
Date Deposited: 31 Jan 2023 01:59
Last Modified: 31 Jan 2023 01:59
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.3390/app11072963
URI: http://psasir.upm.edu.my/id/eprint/96313
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