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Development of a conducting polymer-based microelectrode array detection system (1996)

John, Richard ; Ongarato, Daniela M. ; Wallace, Gordon G.

Weinheim : Wiley-Blackwell

Electroanalysis 8 (1996), S. 623-629

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ISSN: 1040-0397

Keywords: Microelectrode ; Array electrode ; Conducting polymers ; Chemistry ; Polymer and Materials Science

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: An individually addressable microelectrode array system has been developed in the course of this work. The performance of this system was investigated using conventional electrochemistry (oxidation/reduction or ferrocene carboxylic acid) to demonstrate that independent potential control and current measurement at each of the array components was possible. The practical utility of this system has been demonstrated using a conducting polymer based microarray detection system subsequent to Ion Chromatography. The detection of simple electroinactive ions (e.g., Cl-, SO42-, K+, NH4+) using the array system was achieved and the response at each of the array components was studied as a function of polymer composition.

Additional Material: 12 Ill.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/elan.1140080704

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Effect of polymer composition on the detection of electroinactive species using conductive polymers (1993)

Sadik, Omowunmi A. ; Wallace, Gordon G.

Weinheim : Wiley-Blackwell

Electroanalysis 5 (1993), S. 555-563

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ISSN: 1040-0397

Keywords: Conducting polymers ; Electroinactive species ; Polypyrrole ; Chemistry ; Polymer and Materials Science

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: Previous workers have demonstrated that conducting electroactive polymers can be used to detect electroinactive species. In this work, the effect of polymer composition, the nature of the eluent, and the electrochemical waveform on the selectivity of this detection process have been investigated.

Additional Material: 8 Ill.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/elan.1140050705

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Detection of electroinactive ions using conducting polymer microelectrodes (1994)

Sadik, Omowunmi A ; Wallace, Gordon G.

Weinheim : Wiley-Blackwell

Electroanalysis 6 (1994), S. 860-864

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ISSN: 1040-0397

Keywords: Conducting polymers ; Electroinactive ions ; Microelectrodes ; Chemistry ; Polymer and Materials Science

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: The detection of electroinactive ions using conducting polymers has been described previously. In this work, we show that the analytical performance of this method is greatly improved using microelectrodes. The use of microelectrodes overcomes the problems associated with the implementation of this detection scheme in low conductivity eluents.

Additional Material: 5 Ill.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/elan.1140061009

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Studies of the preparation and analytical application of polypyrrole-coated microelectrodes for determination of aluminum (1996)

Barisci, Joseph N. ; Murray, Peta ; Small, Chris J. ; [et al.]

Weinheim : Wiley-Blackwell

Electroanalysis 8 (1996), S. 330-335

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ISSN: 1040-0397

Keywords: Conducting polymers ; Aluminum ; Polypyrrole ; Microelectrode ; Chemistry ; Polymer and Materials Science

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: Methods that enable the preparation of cation sensitive polymer-coated microelectrodes have been developed. The analytical utility of these electrodes has been demonstrated with the detection of aluminum in flowing solutions. Detection limits in the low ppb range have been obtained. The response for several potentially interfering cations was evaluated.

Additional Material: 9 Ill.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/elan.1140080406

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Conducting polymer sensors for the amperometric detection of proteins in a flow system - the use of sulfonated dye counterions to induce selectivity (1997)

Lu, W. ; Wallace, Gordon G.

Weinheim : Wiley-Blackwell

Electroanalysis 9 (1997), S. 454-460

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ISSN: 1040-0397

Keywords: Conducting polymers ; Proteins ; FIA detection ; Chemistry ; Polymer and Materials Science

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: In this article, we have demonstrated the feasibility of using dye binding interactions for the amperometric detection of proteins at conducting polymer coated electrodes with flow injection analysis. Incorporation of appropriate dyes into the conducting polymer during synthesis enables sensitive and selective responses to be obtained. The effects of eluent pH and applied potential on the responses obtained for a range of proteins have been investigated. These parameters can be used to modify selectivity and achieve sensitivity.

Additional Material: 10 Ill.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/elan.1140090605

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