The electrochemical polymerization of methylene blue and bioelectrochemical activity of the resulting film

Karyakin, Arkady A.; Strakhova, A.K.; Karyakina, Elena E.; Varfolomeyev, S.D.; Yatsimirsky, Anatoly K.

doi:10.1016/0302-4598(93)80018-p

Cited by 134 publications

(80 citation statements)

References 21 publications

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“…Moreover, when the supporting electrolyte contains SO 4 2− or NO 3 − , the polymer films are even thicker, suggesting that these anions catalyse the deposition process. The catalytic effect of the nitrate ions was already observed in the case of MB electropolymerisation [26].…”

Section: Electropolymerisation Of the Monomer Dyesmentioning

confidence: 76%

Electrosynthesis and electrochemical characterisation of phenazine polymers for application in biosensors

Bârsan

Pinto

Brett

2008

Electrochimica Acta

109

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A comparative investigation has been undertaken of the electrosynthesis and electrochemical properties of three different electroactive polymers on carbon film electrode substrates: poly(neutral red) from the phenazine dye neutral red, and poly(methylene green) and poly(methylene blue), from the corresponding phenothiazine dyes. The formation of the radical cation at different potentials and the chemical structures of the monomers both influence the electropolymerisation process of the three polyaromatic dyes. Of the three, poly(neutral red) is shown to have the best adhesion at carbon film electrodes. The influence of the electrolyte and pH on film growth and on electrochemical properties was investigated. The formal potential decreased linearly with increase in pH, in the pH range from 1 to 7 for all three polymers. The modified electrodes were also characterised by electrochemical impedance spectroscopy. The bulk and interfacial characteristics of the two phenothiazine polymers were similar and oxygendependent, but different to those of the phenazine polymer, poly(neutral red), which were not significantly influenced by the presence of oxygen in solution. Perspectives for use in electrochemical biosensors are indicated.

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Section: Electropolymerisation Of the Monomer Dyesmentioning

confidence: 76%

Electrosynthesis and electrochemical characterisation of phenazine polymers for application in biosensors

Bârsan

Pinto

Brett

2008

Electrochimica Acta

109

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“…Methylene blue [21][22][23] and azure B 24,25 can be polymerized electrochemically. Poly(methylene blue) 22 and poly(azure B) 24 have good electrochemical activity in the pH range of 2-8 and 2-11, respectively, so they can be used for immobilization of enzymes 21,25 and catalysts.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical polymerization of azure A and properties of poly(azure A)

Chen¹,

Mu²

2003

J of Applied Polymer Sci

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ABSTRACT:The electrochemical polymerization of azure A has been carried out using repeated potential cycling. The scan potential is set between Ϫ0.2 and 1.3 V (vs. Ag/AgCl). The electrolytic solution consisted of 5 mmol dm Ϫ3 azure A and 0.5 mol dm Ϫ3 Na 2 SO 4 with pH 6.0. The temperature for polymerization was controlled at 50°C. An anodic peak and a cathodic peak appear at 0.38 and 0.23 V, respectively, on the cyclic voltammogram of poly(azure A) in 0.5 mol dm Ϫ3Na 2 SO 4 solution of pH 1.0. Their peak potentials shift toward the negative direction as pH value increases from 1.0 to 4.0. Poly(azure A) has good electrochemical activity and stability in the aqueous solution at the above pH range. The UV-visible spectrum and FTIR spectrum of poly(azure A) are different from those of azure A. The FTIR spectrum of poly(azure A) indicates that no anions were doped into the oxidation form of poly(azure A).

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“…The poly(methylene blue)-modified electrode was prepared from 1.0 mM monomeric methylene blue solution by cycling the electrode potential from −1.00 and +0.60 V at a scan rate of 100 mV/ sec in 2.5 × 10 −2 M phosphate buffer according to the literature. 17 As shown in Figure 1, the growth of the polymer film was confirmed by a decrease in the redox waves at −0.05 V and −0.24 V for the monomeric methylene blue and by an increase in the redox waves at 0.05 V and −0.04 V for the poly(methylene blue) film. .…”

Section: Resultsmentioning

confidence: 78%

“…The methylene blue was electropolymerized from 1.0 mM methylene blue solution prepared in 2.5 × 10 −2 M phosphate buffer solution (pH = 6.8) by cycling the electrode potential from −1.00 and +0.60 V at a scan rate of 100 mV/sec according to the literature. 17 The thickness of the polymer was controlled by the number of potential cycling. After electropolymerization, the electrodes were thoroughly rinsed with buffer to remove any remaining monomeric methylene blue.…”

Section: Methodsmentioning

confidence: 99%

Amperometric Determination of Nitrite at Poly(Methylene Blue)-Modified Glassy Carbon Electrode

et al. 2012

Bulletin of the Korean Chemical Society

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Electrochemical characteristics of nitrite ion were investigated at a poly(methylene blue)-modified glassy carbon electrode by cyclic voltammetry and differential pulse voltammetry. The poly(methylene blue)-modified glassy carbon electrode exhibited enhanced anodic signals for nitrite. The effects of key parameters on the detection of nitrite were evaluated at the modified electrode, such as pH, accumulation time, and scan rate. Under optimum condition, the chemically modified electrode can detect nitrite in the concentration range 2.0 × 10 −6 to 5.0 × 10 −4 M with the detection limit of 2.0 × 10 −6 M and a correlation coefficient of 0.999. The detection of nitrite using the chemically modified electrode was not affected by common ions such as Na2− and H 2 PO 4 − . The modified electrode showed good stability and reproducibility. The practical application of the present method was successfully applied to the determination of nitrite ion in cabbage samples.

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The electrochemical polymerization of methylene blue and bioelectrochemical activity of the resulting film

Cited by 134 publications

References 21 publications

Electrosynthesis and electrochemical characterisation of phenazine polymers for application in biosensors

Electrosynthesis and electrochemical characterisation of phenazine polymers for application in biosensors

Electrochemical polymerization of azure A and properties of poly(azure A)

Amperometric Determination of Nitrite at Poly(Methylene Blue)-Modified Glassy Carbon Electrode

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