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Diffusion regimes at nanoelectrode ensembles in different ionic liquids

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TLDR
In this article, the electrochemical and diffusion behavior of different redox probes in different ionic liquids is studied at gold nanoelectrode ensembles (NEEs) in comparison with millimetre sized gold (Au-macro) and glassy carbon (GC) disk electrodes.
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This article is published in Electrochimica Acta.The article was published on 2010-03-01 and is currently open access. It has received 34 citations till now. The article focuses on the topics: Diffusion & Ionic liquid.

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A Sensitive Electrochemiluminescence Immunosensor for Celiac Disease Diagnosis Based on Nanoelectrode Ensembles

TL;DR: The design of a novel immunosensor and its application for celiac disease diagnosis, based on an electrogenerated chemiluminescence (ECL) readout, using membrane-templated gold nanoelectrode ensembles (NEEs) as a detection platform, showing to be suitable to discriminate between healthy and celiac patients.
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Ag nanoparticles anchored onto porous CuO nanobelts for the ultrasensitive electrochemical detection of dopamine in human serum

TL;DR: In this article, an electrochemical sensor based on Ag nanoparticles anchored onto CuO porous nanobelts (Ag/CuO PNBs) was constructed for the ultrasensitive determination of dopamine (DA), which was prepared via a facile two-step cation-exchange reaction followed by in-situ thermal conversion.
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Sensitive and anti-interference stripping voltammetry analysis of Pb(II) in water using flower-like MoS2/rGO composite with ultra-thin nanosheets.

TL;DR: A sensitive and anti-interference electrochemical sensing interface for the analysis of Pb(II) was constructed by using MoS2/rGO nanocomposite modified glassy carbon electrode (MoS2 /rGO-GCE), and experiments indicated that the proposed method has good stability and reproducibility.
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Highly sensitive electrochemical detection of Pb(II) based on excellent adsorption and surface Ni(II)/Ni(III) cycle of porous flower-like NiO/rGO nanocomposite

TL;DR: In this article, a porous flower-like NiO/rGO nanocomposite modified glassy carbon electrode (GCE) was used for detecting Pb(II) in real water samples from Taochong wastewater treatment plant in Hefei city.
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Bioelectroanalysis with nanoelectrode ensembles and arrays

TL;DR: This review deals with recent advances in bioelectroanalytical applications of nanostructured electrodes, in particular nanoelectrode ensembles (NEEs) and arrays (NEAs), and nanofabrication techniques, principles of function, and specific advantages and limits of NEEs and NEAs.
References
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Journal ArticleDOI

Diffusion coefficient of ferrocene in 1-butyl-3-methylimidazolium tetrafluoroborate – concentration dependence and solvent purity

TL;DR: In this paper, the ionic liquid l-butyl-3-methylimidazolium tetrafluoroborate is used as electrolyte in the electrochemical determination of the diffusion coefficient of ferrocene as a function of concentration by cyclic voltammetry and chronoamperometry.
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Concentration-dependent diffusion in room temperature ionic liquids: a microelectrode study

TL;DR: In this article, a microelectrode chronoamperometry of ferrocene oxidation in 1-butyl-3-methylimidazolium triflimide room temperature ionic liquid is described.
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Voltammetry of redox analytes at trace concentrations with nanoelectrode ensembles.

TL;DR: Experimental results show that the faradaic/background currents ratios at the NEE are independent on the total geometric area of the ensemble, so that NEE can be enlarged or miniaturized at pleasure without influencing the very favorable signal/noise ratio.
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Scanning electrochemical microscopy in nonusual solvents: inequality of diffusion coefficients problem.

TL;DR: In this paper, an extension of the model originally presented by Martin and Unwin (Martin, R. D., Unwin, P. R., 1997, 439, 123) was adapted to the specific aspects of SECM in ionic liquids.
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Diffusion Coefficients of Ferrocene in Composite Materials Containing Ambient Temperature Ionic Liquids

TL;DR: In this paper, the diffusion coefficients of ferrocene in composite materials composed of the ambient temperature ionic liquids 1,2-dimethyl and 3-(1-propyl) imidazolium tetrafluoroborate (DMPIBF 4 ) were estimated using chronoamperometry.
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Q1. What have the authors contributed in "Iffusion regimes at nanoelectrode ensembles in different ionic liquids" ?

The electrochemical and diffusion behaviour of different redox probes in different ionic liquids is studied at gold nanoelectrode ensembles ( NEEs ) in comparison with millimetre sized gold ( Au-macro ) and glassy carbon ( GC ) disk electrodes. The ILs are the dicyanamide, [ N ( CN ) 2 ] or bis ( trifluoromethylsulfonyl ) amide ), [ N ( Tf ) 2 ] salts of the following cations: 1-butyl-3-methylimidazolium, [ BMIm ], 1-butyl-3-methylpyrrolidonium, [ BMPy ], or tris ( nhexyl ) tetradecylphosphonium [ P14,666 ]. For this reason the diffusion at gold NEEs is studied only in the former ILs.