ArticleInternational journal of nanomedicine2018
Role of Au(NPs) in the enhanced response of Au(NPs)-decorated MWCNT electrochemical biosensor.
Article in International journal of nanomedicine, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Electron-Donating Benzenethiols Direct Rapid Formation of Plasmonic Gold Nanoflowers.Small (Weinheim an der Bergstrasse, Germany) · 2026Article
- Tyrosinase-Responsive Activated Nano-Coated Sensor for Sensitive Detection of Melanoma Biomarkers.International journal of nanomedicine · 2026Article
- Carbon nanotubes: a powerful bridge for conductivity and flexibility in electrochemical glucose sensors.Journal of nanobiotechnology · 2023Review
- Electrochemical and Electroconductive Behavior of Silk Fibroin Electrospun Membrane Coated with Gold or Silver Nanoparticles.Membranes · 2022Article
- Hybrid Nanobioengineered Nanomaterial-Based Electrochemical Biosensors.Molecules (Basel, Switzerland) · 2022Review
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4 authors.
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Abstract
backgroundThe combination of Au-metallic-NPs and CNTs are a new class of hybrid nanomaterials for the development of electrochemical biosensor. Concentration of Au(nanoparticles [NPs]) in the electrochemical biosensor is crucial for the efficient charge transfer between the Au-NPs-MWCNTs modified electrode and electrolytic solution.
methodsIn this work, the charge transfer kinetics in the glassy carbon electrode (GCE) modified with Au(NPs)-multiwalled carbon nanotube (MWCNT) nanohybrid with varied concentrations of Au(NPs) in the range 40-100 nM was studied using electrochemical impedance spectroscopy (EIS). Field emission scanning electron microscopy and transmission electron microscopy confirmed the attachment of Au(NPs) on the surface of MWCNTs.
resultsThe cyclic voltammetry and EIS results showed that the charge transfer mechanism was diffusion controlled and the rate of charge transfer was dependent on the concentration of Au(NPs) in the nanohybrid. The formation of spherical diffusion zone, which was dependent on the concentration of Au(NPs) in nanohybrids, was attributed to result in 3 times the increase in the charge transfer rate
conclusionThe present study suggested that the formation of spherical diffusion zone in nanohybrid-modified electrodes is critical for the enhanced electrochemical biosensing applications.
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