An innovative electrochemical approach for selective and sensitive urea sensing using NiNPs modified GCE.

Weaam Hakami, Ekram Y Danish, Amna N Khan, Arwa Khudaysh, M Aslam, M Tahir Soomro

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Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

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1citing papers in PubMed

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1 citing paper in PubMed.

Synthesis, Characterization, and Electrochemical Evaluation of Electrodeposited NiCuZn Powders for Urea Oxidation.Materials (Basel, Switzerland) · 2026
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Authors and funding

6 authors.

Weaam HakamiDepartment of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia.

Ekram Y DanishDepartment of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia.

Amna N KhanDepartment of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia.

Arwa KhudayshDepartment of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia.

M AslamCenter of Excellence in Environmental Studies, King Abdulaziz University, Jeddah 21589, Saudi Arabia.

M Tahir SoomroCenter of Excellence in Environmental Studies, King Abdulaziz University, Jeddah 21589, Saudi Arabia. mssoomro@kau.edu.sa.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Urea contamination from waste and sewage sources necessitates a simple, selective, and sensitive method for its detection in food and environmental samples. In this work, an innovative electrochemical approach is presented for urea sensing using a NiNPs modified GCE in 0.1 M NaOH electrolyte. A highly stable colloidal solution of NiNPs was synthesized using tris base as a capping agent and ascorbic acid as a reducing agent, followed by drop-casting onto the GCE surface. The formation of NiNPs was confirmed by surface plasmon resonance (SPR) observed in UV-Visible spectroscopy, while FTIR and Raman analysis validated effective capping by tris base. Structural and morphological characterization using XRD, SEM, and TEM revealed a face-centered cubic (fcc) crystalline structure and oval-shaped nanoparticles with smooth surfaces and an average size of 50-90 nm, dispersed heterogeneously across the GCE surface. The enhanced electrochemical charge transfer properties of NiNPs/GCE were demonstrated using [Fe(CN)

Indexed as

Electrochemical detectionGlassy carbon electrodeNickel nanoparticlesSquare wave voltammetryUrea sensing

Identifiers

PMID41225022

DOI10.1038/s41598-025-23245-y

PMCPMC12612150

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.