Water Contact Angle Optimization for K-SPR Biosensing Application

Authors

  • Nur Akmar Jamil
  • Muhammad Feidhul Hakim Fatah Yasin
  • Ilmi Munirah Karim
  • Nur Dina Mariha Mat Sidin
  • Hanis Yasmin Sofian
  • P Susthitha Menon Universiti Kebangsaan Malaysia (UKM)

DOI:

https://doi.org/10.53655/joe.b2117u

Keywords:

plasmonic, hydrophilic, wettability, K-SPR, biosensor, heptylamine

Abstract

Surface wettability, measured via water contact angle (WCA) assessments, is an essential parameter in evaluating sensor surfaces' characteristics in plasmonic biosensing, particularly in Kretschmann-based surface plasmon resonance (K-SPR). This study examines the influence of heptylamine plasma polymerization parameters on WCA measurement and correlates these surface alterations with the sensitivity of K-SPR biosensors. The correlation between plasma deposition power and WCA was measured using ImageJ software, and SPR angular spectra were evaluated to determine the refractive index sensitivity. The results demonstrate that optimizing plasma deposition conditions provides good linearity in terms of plasmonic biosensing.

References

A. Suhaimi et al., “Superhydrophilic organosilicon plasma modification on PES membrane for organic dyes filtration,” Journal of Water Process Engineering, vol. 44, p. 102 352, Dec. 2021, ISSN: 2214-7144. DOI:10.1016/j.jwpe.2021.102352

N. Ahmed, A. Suhaimi, A. Masood, E. Mahmoudi, K. S. Siow, and M. F. Mohd Razip Wee, “Antimicrobial property of polyethersulfone (PES) membrane by plasma copolymerization of TEOS and oxazoline for organic dyes filtration,” Results in Engineering, vol. 19, p. 101 339, Sep. 2023, ISSN: 2590-1230. DOI: 10.1016/j.rineng.2023.101339

N. A. Jamil, K. S. Siow, and P. S. Menon, “Heptylamine Plasma Polymerization Immobilization SPR Biosensor for Glucose,” in 2024 IEEE 10th International Conference on Photonics (ICP), IEEE, Aug. 2024, pp. 31–33. DOI: 10.1109/icp60542.2024.10876971

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Published

04-11-2025

How to Cite

Jamil, N. A., Fatah Yasin, M. F. H. ., Karim, I. M. ., Mat Sidin, N. D. M. ., Sofian, H. Y. ., & Menon, P. S. (2025). Water Contact Angle Optimization for K-SPR Biosensing Application. Jurnal OptoElektronik, 1–3. https://doi.org/10.53655/joe.b2117u

Issue

Volume 4 (2025)

Section

TMP2025: Regular

License

Copyright (c) 2025 Nur Akmar Jamil, Muhammad Feidhul Hakim Fatah Yasin, Ilmi Munirah Karim, Nur Dina Mariha Mat Sidin, Hanis Yasmin Sofian, P Susthitha Menon

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