Applications of Conductive Polymers to Electrochemical Sensors and Energy Conversion Electrodes

Kim, Dong-Min; Noh, Hui-Bog; Shim, Yoon‐Bo

doi:10.5229/jecst.2013.4.4.125

Cited by 6 publications

(2 citation statements)

References 85 publications

(23 reference statements)

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“…Hence, the choice of mediators is another determining factor in biosensor design for ACh detection, and it should be demonstrable and bear reacting functional moieties for anchoring the enzymes. Among several compounds, polyterthiophene is a highly stable conducting polymers, which has a free carboxyl group to form stable amide bonds with primary amino groups of the enzymes [84]. Therefore, to improve the performance of biosensors, a strategy of conjugation of enzymes and mediators on two different electrodes was developed.…”

Section: Smart Biosensorsmentioning

confidence: 99%

An update on smart biocatalysts for industrial and biomedical applications

Shakya

Nandakumar

2018

J. R. Soc. Interface.

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Recently, smart biocatalysts, where enzymes are conjugated to stimuli-responsive (smart) polymers, have gained significant attention. Based on the presence or absence of external stimuli, the polymer attached to the enzyme changes its conformation to protect the enzyme from the external environment and regulate the enzyme activity, thus acting as a molecular switch. Owing to this behaviour, smart biocatalysts can be separated easily from a reaction mixture and re-used several times. Several such smart polymer-based biocatalysts have been developed for industrial and biomedical applications. In addition, they have been used in biosensors, biometrics and nano-electronic devices. This review article covers recent advances in developing different kinds of stimuli-responsive enzyme bioconjugates, including conjugation strategies, and their applications.

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Section: Smart Biosensorsmentioning

confidence: 99%

An update on smart biocatalysts for industrial and biomedical applications

Shakya

Nandakumar

2018

J. R. Soc. Interface.

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“…[10][11][12][13][14] Electrodes modified with conducting polymers (CPs) are widely used for the electrochemical detection of DA in the presence of UA and AA. 15,16 CPs films offer the advantages of chemical stability and the feasibility of selectivity/sensitivity control and they can be deposited electrochemically onto conventional electrode surfaces in a homogeneous fashion. 17,18 Among the conventional electrodes, GCE is a stable and robust carbon-based electrode, has been widely used as substrate for the modification with CPs.…”

mentioning

confidence: 99%

A Poly(trypan blue)-Modified Anodized Glassy Carbon Electrode for the Sensitive Detection of Dopamine in the Presence of Uric Acid and Ascorbic Acid

Rahman

et al. 2016

J. Electrochem. Soc.

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A conducting polymeric film of trypan blue (TB) was deposited onto an anodized glassy carbon electrode (AGCE) surface by electropolymerization. The poly(trypan blue)-modified AGCE was used for the determination of dopamine (DA) in the presence of uric acid (UA) and ascorbic acid (AA). The PTB/AGCE exhibits good electrocatalytic behavior for the oxidation of DA in phosphate buffer solution (PBS, pH 7.0). The electrochemical oxidation signals of DA, UA, and AA are well-resolved into three distinct peaks in cyclic voltammograms (CVs) with the anodic peak potential separations (ΔEpa) of ca. 186, 145, and 331 mV between AA−DA, DA−UA, and AA−UA, respectively. The ΔEpa values are large enough to discriminate DA from the interference of AA and UA. A detection limit of ca. 0.36 μM (S/N = 3) was obtained for the sensing of DA with a linear range of 1–40 μM in PBS (pH 7.0). The sensor could successfully determine the concentrations of DA in human urine samples with the recoveries of ca. 97.6–102.6%. This approach provides a simple, easy, sensitive, and selective method for the detection of DA in the presence of AA and UA.

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Chiral Recognition of Proline Enantiomers by the Catalytic Oxygen Reduction and Formation of Cu(II)‐Polymer Complex Crystals

et al. 2014

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A Cu(II)‐Poly(terthiophene carboxylic acid) (pTTC)/Nafion modified glassy carbon electrode has been used for the chiral recognition and discrimination of d‐ and l‐prolines by the catalytic oxygen reduction process and the shape of crystals formed on the electrode surface. The cyclic voltammetry with the modified electrode in the presence of oxygen recognized d‐ and l‐form of prolines by exhibiting a difference in the peak potential and the peak current of the oxygen reduction. The effect of pH and proline concentration on the peak current and the peak potential of oxygen have been studied. The SEM studies on the nature of crystals formed on a proline‐Cu(II)pTTC complex. The oxidation state of the copper species present at the electrode surface was characterized by ESCA.

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Applications of Conductive Polymers to Electrochemical Sensors and Energy Conversion Electrodes

Cited by 6 publications

References 85 publications

An update on smart biocatalysts for industrial and biomedical applications

An update on smart biocatalysts for industrial and biomedical applications

A Poly(trypan blue)-Modified Anodized Glassy Carbon Electrode for the Sensitive Detection of Dopamine in the Presence of Uric Acid and Ascorbic Acid

Chiral Recognition of Proline Enantiomers by the Catalytic Oxygen Reduction and Formation of Cu(II)‐Polymer Complex Crystals

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