Simultaneous electrochemical detection of catechol and hydroquinone based on gold nanoparticles@carbon nanocages modified electrode.

08:00 EDT 21st October 2015 | BioPortfolio

Summary of "Simultaneous electrochemical detection of catechol and hydroquinone based on gold nanoparticles@carbon nanocages modified electrode."

In the present study, carbon nanocages (CNCs) decorated with gold nanoparticles (AuNPs) with diameters of 2-5 nm were synthesized by simply mixing their solutions. The sizes of the AuNPs are small enough to diffuse into the inside of the CNCs by electrostatic incorporation and their morphologies were characterized by transmission electron microscopy, X-ray diffraction, energy dispersive spectrometry, Raman spectrometry and ultraviolet visible absorption spectra. The AuNPs@CNCs modified electrode was prepared for simultaneous highly sensitive determination of catechol (CC) and hydroquinone (HQ). This modified electrode demonstrated fantastic eletrochemical catalytic activities towards CC and HQ by cyclic voltammetry and differential pulse voltammetry. The calibration curves showed a linear response between the peak currents and the concentrations of CC and HQ. A wide dynamic detection range of 1.0-250.0 μM and 0.1-200.0 μM with a low detection limits (S/N = 3) of 0.0986 μM and 0.0254 μM can be obtained for CC and HQ respectively. The present method was successfully employed for determination of CC and HQ in a practical sample.


Journal Details

This article was published in the following journal.

Name: The Analyst
ISSN: 1364-5528


DeepDyve research library

PubMed Articles [22704 Associated PubMed Articles listed on BioPortfolio]

Voltammetric simultaneous determination of catechol and hydroquinone using a glassy carbon electrode modified with a ternary hybrid material composed of reduced graphene oxide, magnetite nanoparticles and gold nanoparticles.

An electrochemical sensor is described for the simultaneous determination of the pollutants catechol (CC) and hydroquinone (HQ). A glassy carbon electrode (GCE) was modified with reduced graphene oxid...

Voltammetric determination of hydroquinone, catechol, and resorcinol by using a glassy carbon electrode modified with electrochemically reduced graphene oxide-poly(Eriochrome black T) and gold nanoparticles.

A nanocomposite consisting of electrochemically reduced graphene oxide, poly(Eriochrome black T) and gold nanoparticles (ERGO-pEBT/AuNPs) was prepared for the simultaneous detection of resorcinol (RC)...

A catechol biosensor based on immobilizing laccase to FeO@Au core-shell nanoparticles.

This work is directed towards the synthesis of the magnetic nanoparticle in a core and a gold shell with immobilized of laccase on its surface (FeO@Au@ Lac). The prepared FeO@Au@ Lac core/shell nanopa...

A novel non-enzymatic zinc oxide thin film based electrochemical recyclable strip with device interface for quantitative detection of catechol in water.

Catechol, one of the major effluents released by various chemical and metal processing industries, causes severe pollution of groundwater. Monitoring of catechol in water using cost-effective, handhel...

A paper-based electrochemical immunosensor with reduced graphene oxide/thionine/gold nanoparticles nanocomposites modification for the detection of cancer antigen 125.

A paper-based electrochemical immunosensor was developed for the detection of cancer antigen 125 (CA125) by screen-printing technique. The reduced graphene oxide/thionine/gold nanoparticles (rGO/Thi/A...

Clinical Trials [6096 Associated Clinical Trials listed on BioPortfolio]

Topical Silver Nanoparticles for Microbial Activity

Silver nanoparticles are one of most nanoparticles use nowadays in the research area because it has specific physical and chemical properties, in medical fields silver nanoparticles can in...

Efficacy and Safety of a 4% Hydroquinone Cream (Melanoderm 4%) for the Treatment of Melasma: a Randomized Controlled Split-face Study

To assess the ability of a new 4% Hydroquinone formulation (Melanoderm 4% Crema) to reduce melasma on the face, using a split-face randomization design, evaluating the MASI Score from base...

Salicylic Acid Peels Combined With 4% Hydroquinone in the Treatment of Moderate to Severe Melasma in Hispanic Women

This study will enroll 20 adult Hispanic women. Participants will apply 4% hydroquinone cream twice daily to affected areas on the face for 14 weeks and half the face will be peeled with ...

Electrochemical Skin Conductance in Evaluation of Chronic Neuropathy électrochimique cutanée

Use of cutaneous electrochemical conductance for preclinical screening of small-caliber nerve fibers

Oral Tranexamic Acid and Topical Hydroquinone in the Treatment of Melasma

This study assess the effectiveness of oral tranexamic acid in combination with hydroquinone cream in the treatment of melasma.

Medical and Biotech [MESH] Definitions

Nanoparticles produced from metals whose uses include biosensors, optics, and catalysts. In biomedical applications the particles frequently involve the noble metals, especially gold and silver.

Nanometer-sized particles that are nanoscale in three dimensions. They include nanocrystaline materials; NANOCAPSULES; METAL NANOPARTICLES; DENDRIMERS, and QUANTUM DOTS. The uses of nanoparticles include DRUG DELIVERY SYSTEMS and cancer targeting and imaging.

The fusion of ceramics (porcelain) to an alloy of two or more metals for use in restorative and prosthodontic dentistry. Examples of metal alloys employed include cobalt-chromium, gold-palladium, gold-platinum-palladium, and nickel-based alloys.

Unstable isotopes of gold that decay or disintegrate emitting radiation. Au 185-196, 198-201, and 203 are radioactive gold isotopes.

Enzyme that catalyzes the movement of a methyl group from S-adenosylmethionone to a catechol or a catecholamine. EC

Quick Search


DeepDyve research library

Relevant Topic

Radiology is the branch of medicine that studies imaging of the body; X-ray (basic, angiography, barium swallows), ultrasound, MRI, CT and PET. These imaging techniques can be used to diagnose, but also to treat a range of conditions, by allowing visuali...

Searches Linking to this Article