CuS/Prussian blue core-shell nanohybrid as electrochemical sensor for ascorbic acid detection.

08:00 EDT 4th April 2019 | BioPortfolio

Summary of "CuS/Prussian blue core-shell nanohybrid as electrochemical sensor for ascorbic acid detection."

An electrochemical sensor based on core-shell nanostructured copper sulfide@Prussian blue composites (CuS@PB) was investigated for ascorbic acid (AA) detection. CuS nanoparticles (NPs) were prepared by a hydrothermal method, then core-shell CuS@PB nanohybrid was fabricated through in situ synthesis of PB on CuS NPs. Taking advantage of their enhanced properties, a novel electrochemical AA sensor was developed by drop-coating of CuS@PB nanohybrid on glassy carbon electrode (GCE). As expected, electrochemical observations showed that CuS@PB/GCE presented higher performance for electrocatalytic of AA than PB/GCE, with wide linear range (5-3875 μM, R=0.9997), fast response time (<3 s), high sensitivity (256.91 μAmM-1cm-2), as well as low limit of detection (LOD) (0.24 μM at S/N=3). Additionally, CuS@PB/GCE showed excellent reproducibility, storage stability, anti-interference and selectivity. The application of CuS@PB/GCE sensor for AA assay in beverage samples achieved satisfactory results, demonstrating a great prospect for quantitative detection to AA of various fields.


Journal Details

This article was published in the following journal.

Name: Nanotechnology
ISSN: 1361-6528


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