ArticleElectrochimica acta2016
Morphology of Gold Nanoparticles and Electrocatalysis of Glucose Oxidation.
Article in Electrochimica acta, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 66 citations in OpenAlex.
- A wearable PEDTM/rGO/AuNPs non-enzymatic sensor integrated with nanofiber microfluidic chip for sweat collection and continuous glucose monitoring.Mikrochimica acta · 2026Article
- Facet Control of Gold Nanoplate on Sacrificial Transition Metal Dichalcogenides.Small methods · 2025Article
- Wearable Electrochemical Glucose Sensors for Fluid Monitoring: Advances and Challenges in Non-Invasive and Minimally Invasive Technologies.Biosensors · 2025Review
- Electrochemical immunosensors using electrodeposited gold nanostructures for detecting the S proteins from SARS-CoV and SARS-CoV-2.Analytical and bioanalytical chemistry · 2022Article
- Engineering the Aggregation of Dyes on Ligand-Shell Protected Gold Nanoparticles to Promote Plexcitons Formation.Nanomaterials (Basel, Switzerland) · 2022Article
- Cu(I) Coordination Complex Precursor for Randomized CuOSensors (Basel, Switzerland) · 2019Article
- A nanocomposite consisting of gold nanobipyramids and multiwalled carbon nanotubes for amperometric nonenzymatic sensing of glucose and hydrogen peroxide.Mikrochimica acta · 2019Article
- Three-dimensional porous Cu@CuMikrochimica acta · 2019Article
Corrections and comments
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
Abstract
The shape-dependent activity of gold nanoparticles (AuNP) was studied by testing them as electrocatalysts for the notoriously slow non-enzymatic oxidation of glucose in neutral solutions. The AuNP of spherical and irregular (including polyhedral) morphologies were synthesized and attached to glassy carbon electrodes with chitosan. Voltammetric and mass spectrometric studies showed that the irregular AuNP were more catalytically active toward the oxidation of glucose to gluconic acid. No obvious differences between both morphologies were found based on their X-ray diffraction patterns and HRTEM images suggesting that the crystallographic orientation alone did not account for their catalytic properties. While both morphologies contain the (111) crystallographic planes that are catalytic toward glucose oxidation, the better activity of irregular AuNP was ascribed to a higher surface density of incipient gold oxide acting as a fast redox mediator for glucose oxidation. Supporting this, the AuNP of both morphologies oxidized glucose after their anodic activation, although not to the same extent. The amperometric (0.30 V) determination of glucose at electrodes made of irregular AuNP yielded a wide linear calibration plot (0.20-110 mM; R
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