Solid-state Electrogenerated Chemiluminescence Based on Semiconductor Nanocrystals and Tris(2,2’-bipyridyl)Ruthenium(II) Complex

Kargbo, Osman; Ding, Shou-Nian; Li, Qile

doi:10.2174/157341101004140701123801

Cited by 5 publications

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“…) ECL as a sensitive detection method has received considerable attention in chemical analysis because of its excellent stability and high efficiency in aqueous phase. [25][26][27][28][29][30][31][32][33] Moreover, because (Ru(bpy) 3 2+ ) is regenerated during the ECL process, a reagentless ECL sensor can be constructed by immobilizing the (Ru(bpy) 3 2+ ) on an electrode surface. 34 Carbon paste electrodes have been widely applied in electrochemical research due to their simplicity of fabrication, low cost, low background current, easily renewable surface.…”

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confidence: 99%

Enhanced solid-state electrochemiluminescence of Ru(bpy)₃²⁺with nano-CeO₂modified carbon paste electrode and its application in tramadol determination

et al. 2015

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A sensitized solid-state electrochemiluminescence (ECL) was successfully used for determination of tramadol. The ECL signal was produced by a sensitive Ru(bpy) 3 2+ -tramadol reactions. A modified carbon paste electrode (CPE) was applied as a working electrode.Incorporation of cerium oxide nanoparticles in the carbon paste led to the fabrication of a novel ECL sensor. CeO 2 showed attractive sensitizing effect on Ru(bpy) 3 2+ -tramadol electrochemiluminescence system. Under the optimal conditions for Ru(bpy) 3 2+ -tramadol system, a linear relationship between the ECL intensity and concentration of tramadol in the range of 1.0×10 -10 to 2.5×10 -8 mol/L was obtained with detection limit of 9.0 ×10 -11 mol/L and relative standard deviation of 2.9% (S/N=3). The method is sensitive, selective, and simple and has been successfully applied to the analysis of tramadol in human serum, urine and pharmaceutical formulation.

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confidence: 99%

Enhanced solid-state electrochemiluminescence of Ru(bpy)₃²⁺with nano-CeO₂modified carbon paste electrode and its application in tramadol determination

et al. 2015

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“…The method has an excellent stability and high efficiency in aqueous media. [2][3][4][5][6][7][8][9] Solution phase and solid-state methods are two different trends in generating ECL signals. Ru(bpy) 3 2+ is one of the most important ECL probes, which is due to its regeneration properties during the ECL process, and that it is possible to immobilize it on electrode surfaces.…”

Section: Introductionmentioning

confidence: 99%

A novel solid-state electrochemiluminescence sensor based on a Ru(bpy)₃²⁺/nano Sm₂O₃modified carbon paste electrode for the determination ofl-proline

et al. 2015

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A novel solid-state electrochemiluminescence (ECL) sensor was successfully developed for the determination of L-proline. The ECL signal was generated by a sensitive reaction between Ru(bpy) 3 2+ and L-proline on a carbon paste electrode (CPE) modified samarium oxide nanoparticles. Presence of Sm 2 O 3 nanoparticles (NPs) in the carbon paste was found to enhance the electrochemiluminescence signal. Under optimized conditions, a linear relation between the ECL intensity and the concentration of L-proline was observed in the linear range of 1.00×10 -9 to 1.65×10 -7 mol/L (R 2 =0.996) with a detection limit of 6.0×10 -10 mol/L (S/N=3) and relative standard deviation of 3.3%. The method was sensitive, selective and simple and successfully applied to the analysis of L-proline in human serum and urine samples.

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Enhanced Anodic Electrochemiluminescence of Dissolved Oxygen with 2‐(Dibutylamino) ethanol at TiO₂ Nanoparticles Modified Platinum Electrode for Dopamine Detection

Guo

Ding

et al. 2015

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Dopamine (DA), am omentousc atecholamine which belongs to the family of excitatory chemical neurotransmitters,i sw idely distributed in the mammalian centraln erve system [1].N umerousd isorders would emerge once altered the level of DA in human body,t herefore,i ti ss ignificantt of ind sensitive and selective methodst od etect DA for the diagnostics of neurological diseases.Electrochemiluminescence( ECL) is az ero background analytical detectiont echnique due to the ability of access to exciteds tates of molecules withouta na dditional photo-excitation source but with the control of electrochemistry [2].I nt he past decades,m any luminescence systems, such as Ru(bpy) 3 2 + -t ripropylamine (TPA), luminol-H 2 O 2 [3] and QDs-S 2 O 8 2À [4],h ave been widely investigateda nd applied in chemical analysis.N evertheless,t he ECL of dissolved oxygen was always ignored as backgrounde mission in above systems.K umarf irstly proved that the background emission at 630 nm in Ru(bpy) 3 2 + -TPAs ystem originate from the dimeric 1 D g state of dissolved oxygen during the electrochemical oxidation of TPA [ 5].A nd the anodic ECL from dissolved oxygen has been greatly improved and successfully usedt od etect glucoseo xidase by using 2-(dibutylamino) ethanol (DBAE) asc o-reactant by our group [6].H owever, the ECL intensity of dissolvedo xygen is still very limited.In this work, TiO 2 /Pt electrode was fabricated by dropping TiO 2 NPs dispersion ontot he whole platinume lectrode surface directly.C ompared with the bare Pt electrode,t he ECL intensity of O 2 + DBAE system could be enlarged by ca. 3-fold at TiO 2 /Pt electrode.T he enhanced ECL mechanism was investigated by cyclic voltammetry. Furthermore,inthe anodic potential scan, DA can be oxidized to produce o-benzoquinone species,w hich could quench the excited state of dissolved oxygen effectively [7].M oreover, the adsorption of DA on TiO 2 NPs surface form af ive membered ring coordination complex to block the active sites of TiO 2 NPs [8],w hich could also facilitatet he quenching effect. Consequently,ahigh sensitive and selective ECL sensor for the determination of DA has been established. Thed iagrammatic presentation of detecting DA by this ECL senor is shown in Scheme1.Abstract:T he anodic electrochemiluminescence (ECL)o f dissolved oxygen with 2-(dibutylamino)e thanol (DBAE) on platinum electrode has been reported previously by our group. Interestingly,t he ECL intensity can be greatly amplified at TiO 2 nanoparticles modified platinum electrode (TiO 2 /Pt), whichi sd ue to the catalytic effect of TiO 2 nanoparticles to electrochemical oxidation of DBAE. It is the first case to obtain the enhanced ECL froml uminophor by electrochemical catalysis of co-reactant. Thee nhanced anodic ECL intensity can be quenched by dopamine sensitively.A nd the ECL intensity versus the logarithm of concentration of dopaminew as linear over the 4.0 10 À12 -1.8 10 À8 M( R 2 = 0.9957),w ith the limit of detection of 2.7 10 À12 M(S/N = 3).

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Solid-state Electrogenerated Chemiluminescence Based on Semiconductor Nanocrystals and Tris(2,2’-bipyridyl)Ruthenium(II) Complex

Cited by 5 publications

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Enhanced solid-state electrochemiluminescence of Ru(bpy)₃²⁺with nano-CeO₂modified carbon paste electrode and its application in tramadol determination

Enhanced solid-state electrochemiluminescence of Ru(bpy)₃²⁺with nano-CeO₂modified carbon paste electrode and its application in tramadol determination

A novel solid-state electrochemiluminescence sensor based on a Ru(bpy)₃²⁺/nano Sm₂O₃modified carbon paste electrode for the determination ofl-proline

Enhanced Anodic Electrochemiluminescence of Dissolved Oxygen with 2‐(Dibutylamino) ethanol at TiO₂ Nanoparticles Modified Platinum Electrode for Dopamine Detection

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Solid-state Electrogenerated Chemiluminescence Based on Semiconductor Nanocrystals and Tris(2,2’-bipyridyl)Ruthenium(II) Complex

Cited by 5 publications

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Enhanced solid-state electrochemiluminescence of Ru(bpy)32+with nano-CeO2modified carbon paste electrode and its application in tramadol determination

Enhanced solid-state electrochemiluminescence of Ru(bpy)32+with nano-CeO2modified carbon paste electrode and its application in tramadol determination

A novel solid-state electrochemiluminescence sensor based on a Ru(bpy)32+/nano Sm2O3modified carbon paste electrode for the determination ofl-proline

Enhanced Anodic Electrochemiluminescence of Dissolved Oxygen with 2‐(Dibutylamino) ethanol at TiO2 Nanoparticles Modified Platinum Electrode for Dopamine Detection

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Enhanced solid-state electrochemiluminescence of Ru(bpy)₃²⁺with nano-CeO₂modified carbon paste electrode and its application in tramadol determination

Enhanced solid-state electrochemiluminescence of Ru(bpy)₃²⁺with nano-CeO₂modified carbon paste electrode and its application in tramadol determination

A novel solid-state electrochemiluminescence sensor based on a Ru(bpy)₃²⁺/nano Sm₂O₃modified carbon paste electrode for the determination ofl-proline

Enhanced Anodic Electrochemiluminescence of Dissolved Oxygen with 2‐(Dibutylamino) ethanol at TiO₂ Nanoparticles Modified Platinum Electrode for Dopamine Detection