Direct Laser Writing of Poly(furfuryl Alcohol)/Graphene Oxide Electrodes for Electrochemical Determination of Ascorbic Acid

Abstract

Due to the considerable importance of preventing and treating diseases, efficient detection methods are required to monitor levels of ascorbic acid (AA) in beverages, foods, dietary supplements, and biological fluids. In this work, an efficient, easy handling, low cost, and simple fabrication process for non‐enzymatic electrochemical sensors was fabricated through the carbonization of a graphene oxide filled biomass‐derived polymer poly(furfuryl alcohol) (PFA/GO), as sustainable alternative, using a high throughput CO2 laser‐scribing process. The laser power was found to determine the physicochemical properties of the resulting graphene‐like electrodes. As an electrochemical sensor, devices presented a detection limit of 1.0 μmol cm2 L−1 with good reproducibility towards AA oxidation. For real sample measurements, recovery rates between 97 and 113 % were found in commercial vitamin‐C tablet. Analysis of AA in synthetic sweat presented good intra‐electrode reproducibility and limit of detection of 1.3 μmol cm2 L−1.

Laser-Scribed Graphene-Based Electrochemical Sensors: A Review

“…[36]. License number: 5432021450144 (B) Direct laser engraving of graphene oxidebiomass-derived poly(furfuryl alcohol) electrode for non-enzymatic electrochemical detection of ascorbic acid in vitamin C pills and synthetic sweat [42]. License number: 543203029591.…”

“…The graphene layer printed film was treated with a pulsed laser (15 ns) of 355 nm wavelength to anneal and nanostructure the electrode. Alternatively, GO prepared by Hummer's method was mixed with furfuryl alcohol (PFA), and the resulting poly condensed PFA/GO was used to coat a glass substrate, followed by CO 2 laser treatment to carbonize the electrode pattern using 3.88 W of laser power and 100 mm s −1 scan rate (Figure 3B) [42].…”

Effectively Reinforced α-Bi2O3 MPs/PDA-RGO Sensor for Selective Modality Sensing of a Hazardous Phenolic Compound

“…Additionally, GO conserved its shape and morphology, which was appropriate for separating the desired pollutant without destroying the environment . Given that, GO has been widely applied in many fields, including energy storage devices, fuel cells, OER, HER, solar cells, electrochemical sensors, and photocatalysis. − However, GO has some limitations, such as poor water dispersibility, defect of conjugated sp 2 network, and agglomeration, possibly impacting charge transfer ability. − On this account, surface modification of GO is conjugated with a biomolecule combination, which can feasibly improve the dispersibility and good binding ability on the electrode surface and provide an excellent electrochemical platform. As a result, the self-polymerization capability of dopamine (PDA) in an alkaline environment modifies reduced graphene oxide (rGO), which functions as both a reducing agent to facilitate GO conversion and a capping agent to enhance the stability and ornamentation of the resulting rGO. , The PDA possesses various functional groups (hydroxyl/–OH, amine/–NH 2 , imine/CN), confers the chemically active functional groups, and provides excellent binding sites for various functional molecules. , The PDA will most likely bind with substrates via noncovalent interactions, including metal coordination, π–π stacking, and hydrogen bonding. , Furthermore, these functional groups electrochemically interact with 2,4,6-trichlorophenol, making TCP more selective on Bi 2 O 3 MPs/PDA-RGO/SPCE.…”

Rapid and sensitive determination of ascorbic acid based on label-free silver triangular nanoplates

“… Wu et al, 2017 ; Zhong et al, 2022 ), chromatography( Abe et al, 2022 ; Borras et al, 2021 ), electrochemistry(Y. Li et al, 2022 ; M. Liu et al, 2013 ; Loguercio et al, 2022 ), spectrophotometry (Y. Y. Li et al, 2023 ; Shen et al, 2022 ), which have high sensitivity and specificity, but their further application was still hampered by their expensive cost, long time-consuming, intricate sample processing, and sophisticated instrument operation ( Gong et al, 2017 ; Lihuang et al, 2019 ; Zhuo et al, 2019 ).…”