A hydrogen peroxide sensor based on the nanocomposites of poly(brilliant cresyl blue) and single walled-carbon nanotubes

Liu, Huajun; Yang, Dong-wei; Liu, Huihong

doi:10.1039/c2ay05881b

Cited by 13 publications

(5 citation statements)

References 31 publications

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“…The analytical parameters obtained with our system fell within the range of other non-enzymatic sensors of H 2 O 2 based on azine derivative polymers, which reached LODs of a micromolar order. Table 2 shows a comparative study of the analytical performance for the non-enzymatic sensing of H 2 O 2 for different modified electrodes with a variety of conjugated polymers [46,49,50,51,52,53,54,55]. As can be seen, sensitivity reached with our system shows an acceptable value, similar to that obtained by other authors.…”

Section: Resultssupporting

confidence: 77%

A Comparative Study of Poly(Azure A) Film-Modified Disposable Electrodes for Electrocatalytic Oxidation of H2O2: Effect of Doping Anion

et al. 2018

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In the present paper, poly(azure A) (PAA) films were electrosynthetized in the presence of different doping anions on disposable screen-printed carbon electrodes (SPCEs). The anions used included inorganic monoatomic (chloride and fluoride), inorganic polyatomic (nitrate and sulfate) and organic polyatomic (dodecyl sulfate, DS) species. The coated electrodes thus obtained were characterized by electrochemical techniques and SEM. They showed improved electrocatalytic activities towards hydrogen peroxide oxidation compared to that of a bare SPCE. In particular, the insertion of DS anions inside PAA films provided a special sensitivity to the electrocatalysis of H2O2, which endowed these electrodes with promising analytical features for H2O2 quantification. We obtained a wide linear response for H2O2 within a range of 5 µM to 3 mM and a limit of detection of 1.43 ± 0.10 µM (signal-to-noise ratio of 3). Furthermore, sensitivity was 72.4 ± 0.49 nA·µM−1∙cm−2 at a relatively low electrocatalytic oxidation overpotential of 0.5 V vs. Ag. The applicability of this boosted system was tested by the analysis of H2O2 in commercial samples of a hair lightener and an antiseptic and was corroborated by spectrophotometric methods.

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Section: Resultssupporting

confidence: 77%

A Comparative Study of Poly(Azure A) Film-Modified Disposable Electrodes for Electrocatalytic Oxidation of H2O2: Effect of Doping Anion

et al. 2018

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“…12 Since the rst report of Fe 3 O 4 magnetic nanoparticles (MNPs) possessing intrinsic peroxidase-like activity, 13 a variety of inorganic nanomaterials with peroxidase-like activity have been reported, including metal oxide nanomaterials, 14,15 sulde nanomaterials, 16 metal nanomaterials, [17][18][19] and carbon nanomaterials. 20,21 These nanoparticle-based mimics could be potentially effectively employed in colorimetric biosensors.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of copper sulfide nanorods as peroxidase mimics for the colorimetric detection of hydrogen peroxide

2015

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“…Firstly, the PBCB film acts as an electron transfer mediator 26 to accelerate electron transfer rate for oxidation of HQ and CT as:…”

Section: Resultsmentioning

confidence: 99%

“…The detection of HQ and CT and signal separation can be explained in several ways. Firstly, the PBCB film acts as an electron transfer mediator 26 to accelerate electron transfer rate for oxidation of HQ and CT as:…”

Section: Resultsmentioning

confidence: 99%

Poly(brilliant Cresyl Blue)-Modified Electrode for Highly Sensitive and Simultaneous Determination of Hydroquinone and Catechol

Shaikh

Saha

Bakshi

et al. 2013

J. Electrochem. Soc.

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A selective and highly sensitive electrochemical method, based on a poly(brilliant cresyl blue)-modified activated glassy carbon electrode, was developed for the simultaneous determination of hydroquinone (HQ) and catechol (CT). The modified electrode was characterized by cyclic voltammetry (CV). It was found that the modified electrode showed an excellent catalytic activity and enhanced reversibility toward the oxidation of both HQ and CT in 0.1 M phosphate buffer solution (PBS, pH 7.0). The peak-to-peak separations ( E p ) between oxidation and reduction waves in CV were decreased significantly from 360 and 285 mV at the bare electrode, to 59 and 56 mV at the poly(brilliant cresyl blue) modified electrode for HQ and CT respectively. Furthermore, the redox responses from the mixture of HQ and CT were easily resolved in both CV and differential pulse voltammetry (DPV). The oxidation peak currents of HQ and CT were linear up to 250 μM with the detection limits (S/N = 3) of 60 and 56 nM for HQ and CT, respectively. The developed sensor was successfully examined for real sample analysis with tap water and it showed a stable and reliable recovery data with high reproducibility.

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A hydrogen peroxide sensor based on the nanocomposites of poly(brilliant cresyl blue) and single walled-carbon nanotubes

Cited by 13 publications

References 31 publications

A Comparative Study of Poly(Azure A) Film-Modified Disposable Electrodes for Electrocatalytic Oxidation of H2O2: Effect of Doping Anion

A Comparative Study of Poly(Azure A) Film-Modified Disposable Electrodes for Electrocatalytic Oxidation of H2O2: Effect of Doping Anion

Synthesis of copper sulfide nanorods as peroxidase mimics for the colorimetric detection of hydrogen peroxide

Poly(brilliant Cresyl Blue)-Modified Electrode for Highly Sensitive and Simultaneous Determination of Hydroquinone and Catechol

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