Fabrication of Zeolitic imidazolate framework-8 (ZIF-8) modified screen-printed electrode and its catalytic role for the electrochemical determination of biological molecule (dopamine)
Ahmad K, Nde DT, Khan RA, Raza W (2024)
Publication Type: Journal article
Publication year: 2024
Journal
Book Volume: 699
Article Number: 134606
DOI: 10.1016/j.colsurfa.2024.134606
Abstract
Herein, we reported the simple room temperature synthesis of zeolitic imidazolate framework-8 (ZIF-8). The crystallinity and phase of the synthesized ZIF-8 was confirmed by employing powder X-ray Diffraction (PXRD) method. Field emission scanning electron microscopy (FE-SEM) results showed that synthesized ZIF-8 has rhombic dodecahedral structure. The energy-dispersive X-ray spectroscopic (EDX) and photoelectron X-ray spectroscopic (XPS) analysis showed the presence of good phase purity of the synthesized ZIF-8. The screen printed carbon electrode (SPE) has been modified using ZIF-8 as catalyst for the detection of dopamine (DA). The ZIF-8@SPE demonstrated good electrochemical performance for the sensing of DA using cyclic voltammetry (CV) and differential pulse voltammetry (DPV). The ZIF-8@SPE exhibits decent limit of detection (LOD), linear range, and sensitivity of 0.087 µM, 2–50 µM, and 4.78 µA/µM.cm2, respectively. The ZIF-8@SPE also demonstrated good reproducibility, repeatability of 50 cycles and storage stability of 30 days with insignificant change in the performance. The ZIF-8@SPE exhibited decent selectivity for the sensing of DA in presence of various interfering molecules/compounds. We believe that the present work would be beneficial for the scientific scholars working on the development of DA sensors for practical applications.
Authors with CRIS profile
Involved external institutions
Korea, Republic of (KR)How to cite
APA:
Ahmad, K., Nde, D.T., Khan, R.A., & Raza, W. (2024). Fabrication of Zeolitic imidazolate framework-8 (ZIF-8) modified screen-printed electrode and its catalytic role for the electrochemical determination of biological molecule (dopamine). Colloids and Surfaces A-Physicochemical and Engineering Aspects, 699. https://doi.org/10.1016/j.colsurfa.2024.134606
MLA:
Ahmad, Khursheed, et al. "Fabrication of Zeolitic imidazolate framework-8 (ZIF-8) modified screen-printed electrode and its catalytic role for the electrochemical determination of biological molecule (dopamine)." Colloids and Surfaces A-Physicochemical and Engineering Aspects 699 (2024).
BibTeX: Download