Electrogenerated Chemiluminescence from Ru(bpy)&lt;sub&gt;2&lt;/sub&gt;(ndbpy) LB Monolayer and Its Application to Oxalate Sensor

Sawaguchi, Takahiro; Ishio, Atsushi; Matsue, Tomokazu; Uchida, Isamu; Itaya, Kingo

doi:10.5796/kogyobutsurikagaku.57.1209

Cited by 8 publications

(1 citation statement)

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“…Obeng and Bard 6 immobilized Ru(bpy) 3 2+ on a gold electrode using its mercaptolized derivatives and self-assembly, and the ECL was bright enough to be captured by a CCD camera. Although there have been several application reports, 14 these two approaches suffer from some disadvantages. For example, the LB layer is easily destroyed by some organic solvents and is sensitive to surfactants.…”

Section: Introductionmentioning

confidence: 99%

Electrochemiluminescence sensor using gold-nanoparticle modification combining mercaptoacetic acid-assembly

Shi²,

Chen

et al. 2012

Anal. Methods

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In this paper, an electrochemiluminescence (ECL) sensor is fabricated using a covalent bond immobilization approach. A glassy carbon electrode (GCE) modified with gold nanoparticles (AuNPs@GCE) was prepared using a wet chemical method which acts as a support for the ECL reagent. A monolayer of mercaptoacetic acid (MA) was then assembled onto the AuNPs@GCE surface. Finally, an ECL reagent, bis(2,2 0 -bipyridyl) (5-amno-1,10-phen) dichlororuthenium [Ru(bpy) 2 (phen-NH 2 )] 2 2+ , was attached onto the AuNPs@GCE by condensation of the amino group and carboxylic group of MA. Because [Ru(bpy) 2 (phen-NH 2 )] 2 2+ is covalently immobilized on the electrode surface without any polymaterials and directly contacts to the electrolyte, in contrast to traditional ECL sensors fabricated using a polymer technique, mass transportation and electron transfer hindrance is negligible and ECL stability is increased obviously. The sensor is applied in cathodic ECL analysis and presents good performance in a linear range from 1.0 Â 10 À6 mol L À1 to 0.1 mol L À1 and a detection limit of 5 Â 10 À7 mol L À1 for potassium persulfate.

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Section: Introductionmentioning

confidence: 99%

Electrochemiluminescence sensor using gold-nanoparticle modification combining mercaptoacetic acid-assembly

Shi²,

Chen

et al. 2012

Anal. Methods

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Electrogenerated chemiluminescence using solution phase and immobilized tris(4,7-diphenyl-1,10-phenanthrolinedisulfonic acid)ruthenium(II)

et al. 1998

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Abstract. Electrogenerated chemiluminescence (ECL)with tris(4,7-diphenyl-1,10-phenanthrolinedisulfonic acid)ruthenium(II) (RuBPS) in solution and immobilized on an electrode surface is investigated. Flow injection analysis with a thin layer electrochemical cell modified for ECL detection is used to determine the analytical utility of solution phase RuBPS and RuBPS immobilized in a cationic polypyrrole derivative. The solution phase reaction of RuBPS with oxalate is investigated with regard to the dependence of ECL emission on RuBPS concentration, carrier stream flow rate, and pH. In the parameter range studied, ECL intensity is not linear with the concentration of RuBPS in the sample. A maximum ECL intensity is observed with a RuBPS concentration of approximately 250 gM. Slower linear velocities give greater ECL intensities which is the opposite of what is observed for Ru(bpy)~ + and oxalate. Greater ECL intensity is observed at lower pHs for oxalate and at higher pHs for proline. RuBPS ECL with oxalate yields a working curve with a linear range from 0.1-100 btM oxalate. Solution phase ECL is observed for RuBPS and other amines such as NADH, proline, tripropylamine, and antibiotics including streptomycin and gentamicin. RuBPS is also immobilized by electrochemical polymerization of 1-methyl-3-(pyrrol-1-ylmethyl)pyridinium chloride (MPP) in the presence of RuBPS. This polymer-modified electrode yields ECL for oxalate and for amines.

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Aqueous electrochemiluminescence of polycyclic aromatic hydrocarbons immobilized into Langmuir–Blodgett film at the electrode

Zholudov

Snizhko

Kukoba

et al. 2008

Electrochimica Acta

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Electrogenerated Chemiluminescence from Ru(bpy)<sub>2</sub>(ndbpy) LB Monolayer and Its Application to Oxalate Sensor

Cited by 8 publications

References 0 publications

Electrochemiluminescence sensor using gold-nanoparticle modification combining mercaptoacetic acid-assembly

Electrochemiluminescence sensor using gold-nanoparticle modification combining mercaptoacetic acid-assembly

Electrogenerated chemiluminescence using solution phase and immobilized tris(4,7-diphenyl-1,10-phenanthrolinedisulfonic acid)ruthenium(II)

Aqueous electrochemiluminescence of polycyclic aromatic hydrocarbons immobilized into Langmuir–Blodgett film at the electrode

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