Pulse Laser Deposition Fabricating Gold Nanoclusters on a Glassy Carbon Surface for Nonenzymatic Glucose Sensing

Shu, Honghui; Chang, Gang; Wang, Zhiqiang; Li, Pai; Zhang, Yuting; He, Yunbin

doi:10.2116/analsci.31.609

Cited by 6 publications

(2 citation statements)

References 38 publications

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“…Ten CV-scans in H 2 SO 4 were recorded before the analysis start. CV-treatment in H 2 SO 4 is also used by many researchers as activation step for noble metals-based electrodes [40]: in our experience, it is convenient to combine this procedure with a further activation step by applying a potential of 0.60 V for 60 s in 0.06 M HCl solution before mercury determination: this step is useful for removing all naturally occurring Au oxides from the surface of the electrode. The combination of these two electrochemical pretreatments permits improving the quality and the reproducibility of Hg signal.…”

Section: Resultsmentioning

confidence: 99%

A Portable Setup for the Voltammetric Determination of Total Mercury in Fish with Solid and Nanostructured Gold Electrodes

et al. 2019

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A simple procedure for field fish sample pretreatment was developed. This treatment in combination with square wave anodic stripping voltammetry (SW-ASV) with solid gold electrodes (SGE) and gold nanoparticle-modified glassy carbon electrodes (AuNPs-GCE) was applied for the determination of total mercury content. A certified reference material (CRM, Tuna Fish BCR 463), ten freeze-dried samples of canned tuna and two fresh fish samples were analysed both with a bench-top voltammetric analyser after microwave digestion and with a portable potentiostat after mild eating using a small commercial food warmer. The results obtained by the two SW-ASV approaches and by a Direct Mercury Analyser (DMA), the official method for mercury determination, were in very good agreement. In particular, (i) the results obtained with in field procedure are consistent with those obtained with the conventional microwave digestion; (ii) the presence of gold nanoparticles on the active electrode surface permits an improvement of the analytical performance in comparison to the SGE: the Limit of Quantification (LOQ) for mercury in fish-matrix was 0.1 μg L−1 (Hg cell concentration), corresponding to 0.06 mg kg−1 wet fish, which is a performance comparable to that of DMA. The pretreatment proposed in this study is very easy and applicable to fresh fish; in combination with a portable potentiostat, it proved to be an interesting procedure for on-site mercury determination.

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Section: Resultsmentioning

confidence: 99%

A Portable Setup for the Voltammetric Determination of Total Mercury in Fish with Solid and Nanostructured Gold Electrodes

et al. 2019

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“…There have been developed glucose sensors using different nanomaterials including platinum, gold, palladium, and metal oxides [1,[4][5][6]. Among them, due to biocompatibility, higher activity, and lower potential of glucose electrooxidation, gold is one of the most inspiring materials for the fabrication of glucose sensors [7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26].…”

Section: Development Of Simple Reliable and Fast Methods For Detectimentioning

confidence: 99%

Non-enzymatic glucose biosensor based on hyperbranched pine-like gold nanostructure

Heli

Amirizadeh

2016

Materials Science and Engineering: C

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Hyperbranched pine-like gold nanostructure was electrodeposited on the polycrystalline gold surface at 0 mV (vs. AgCl) with the assistance of histidine as a soft template. The nanostructure was then applied as a highly sensitive nonenzymatic sensor for glucose. The catalytic activity and sensitivity of the gold nanostructure toward the electrooxidation of glucose was excellent without surface fouling and deterioration effects. The current related to the oxidation of glucose rapidly and linearly depended on its concentration with a sensitivity of 776.8 μA cm(-2)mmol(-1)dm(3), a detection limit of 3.39 μmol dm(-3) with a relative standard deviation of 2.32%.

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Properties of Thermally Dewetted Thin Au Films on ITO-Coated Glass for Biosensing Applications

et al. 2016

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Pulse Laser Deposition Fabricating Gold Nanoclusters on a Glassy Carbon Surface for Nonenzymatic Glucose Sensing

Cited by 6 publications

References 38 publications

A Portable Setup for the Voltammetric Determination of Total Mercury in Fish with Solid and Nanostructured Gold Electrodes

A Portable Setup for the Voltammetric Determination of Total Mercury in Fish with Solid and Nanostructured Gold Electrodes

Non-enzymatic glucose biosensor based on hyperbranched pine-like gold nanostructure

Properties of Thermally Dewetted Thin Au Films on ITO-Coated Glass for Biosensing Applications

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