Design of miniaturized nitrite sensors based on silicon structure with back-side contacts

Wyglądacz, Katarzyna; Malinowska, Elżbieta; Pijanowska, D. G.; Jazwinski, Jerzy; Brzózka, Zbigniew

doi:10.1016/s0925-4005(01)01052-8

Cited by 20 publications

(14 citation statements)

References 36 publications

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“…Quite interesting results were reported, for example, for miniaturized ISEs with polymeric membranes containing Co(III)-porphyrin as an ionophore [23]. A hydrogel (pHEMA) layer, containing aqueous internal electrolyte, was used as a intermediate layer in this earlier work, resulting in pronounced improvement of sensor EMF stability with time, compared to sensors with no hydrogel layer.…”

Section: Resultsmentioning

confidence: 99%

“…Miniaturized planar electrodes with polymeric membranes containing metalloporphyrins were also described, with a hydrogel as an intermediate layer. Co(III)-tetraphenylporphyrin [23], Zr(IV)- tetraphenylporphyrin and Zr(IV)- octaethylporphyrin [24] were used as ionophores for the preparation of electrodes selective towards nitrite and fluoride anion. It was shown that the working parameters (e.g., selectivity, linear range, slopes of the calibration curves) of the sensors were comparable to classic ISEs with bulk internal electrolyte solutions.…”

Section: Introductionmentioning

confidence: 99%

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Influence of inner transducer properties on EMF response and stability of solid-contact anion-selective membrane electrodes based on metalloporphyrin ionophores

Górski

Matusevich

Pietrzak

et al. 2008

J Solid State Electrochem

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The performance of solid-contact/coated wire type electrodes with plasticized PVC membranes containing metalloporphyrins as anion selective ionophores is reported. The membranes are deposited on transducers based on graphite pastes and graphite rods. The hydrophobicity of the underlying conductive transducer surface is found to be a key factor that influences the formation of an aqueous layer beneath the polymer film. Elimination of this ill-defined water layer greatly improves the electrochemical properties of the ion-sensors, such as EMF stability and life-time. Only highly lipophilic electrode substrates, namely graphite paste with mineral oil, were shown to prevent the formation of aqueous layer underneath the ion-sensing membrane. The possibility of employing Co(III)-tetraphenylporphyrin both as NO2− selective ionophore and as electron/ion conducting species to ensure ion-to-electron translation was also discussed based on the results of preliminary experiments.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Influence of inner transducer properties on EMF response and stability of solid-contact anion-selective membrane electrodes based on metalloporphyrin ionophores

Górski

Matusevich

Pietrzak

et al. 2008

J Solid State Electrochem

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“…In our works BSC silicon-based transducers were also presented [2,5,6]. They were prepared using standard IC technology.…”

Section: Transducers Designmentioning

confidence: 99%

“…Silver was electrochemically deposited from a silver cyanide solution and it was later chlorinized using KCl/HCl solution. For details on the fabrication and the design of transducers see [2,5,6]. The transducers were covered with various chemosensitive materials to obtain sensors of demanded work parameters.…”

Section: Transducers Designmentioning

confidence: 99%

“…Tecoflex polyurethane (PU), polymer of improved adhesion to solid substrates, has been used in our group for the preparation of modified silicone based BSC sensors. In one of the experiments, Co(III)-tetraphenylporphyrin (Co(III)-TPP) was introduced as ionophore for the preparation of miniaturized nitrite-selective electrodes [6]. As PU has relatively high glass transition temperature, the addition of external plasticizer (PU/plasticizer wt.…”

Section: Membrane Materialsmentioning

confidence: 99%

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Potentiometric Studies and Various Applications of Solid State Electrodes Based on Silicon and Epoxy Glass Structures – an Overview

et al. 2009

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Potentiometric microelectrodes are attractive sensor tools for the determination of ionic components in liquids, in wide area of applications, from environmental monitoring to medical diagnostics. Appropriate design of miniaturized transducers based on solid-state technology and the fabrication of dedicated flow multiparameter systems allow the reduction of sample volume and reagents loss. In this overview various examples of the design, performance, and applications of solid-state potentiometric microelectrodes based on back-side contact transducers for flow-cell analysis are presented. The presented results summarize the research works on that field that were conduced in CSRG/Warsaw University of Technology.

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Solid‐State Microelectrodes for Flow‐Cell Analysis Based on Planar Back‐Side Contact Transducers

Mamińska

Wróblewski

2006

Electroanalysis

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This paper presents an overview of the studies carried out in the recent years in our laboratory, on the construction of different solid-state microelectrodes for flow-cell analysis. The microelectrodes were based on planar transducers made from a printed circuit board and manufactured as back-side contact structures, which facilitate their mounting in a flow-cell. Performances of the polymeric membrane ion-selective: coated-wire microelectrodes and microsensors with a polyHEMA layer containing internal electrolyte are compared. Conducting polymer -polypyrrole doped with ester of sulfosuccinic acid -was added to the PVC membranes to develop all-solid-state microelectrodes without internal electrolyte solution, exhibiting good potential stability in time. Finally, all-solid-state reference microelectrodes based on back-side contact transducers are prepared and examined. These structures were applied as reference electrodes in flow-cell measurements with potassium-selective planar microelectrodes.

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Design of miniaturized nitrite sensors based on silicon structure with back-side contacts

Cited by 20 publications

References 36 publications

Influence of inner transducer properties on EMF response and stability of solid-contact anion-selective membrane electrodes based on metalloporphyrin ionophores

Influence of inner transducer properties on EMF response and stability of solid-contact anion-selective membrane electrodes based on metalloporphyrin ionophores

Potentiometric Studies and Various Applications of Solid State Electrodes Based on Silicon and Epoxy Glass Structures – an Overview

Solid‐State Microelectrodes for Flow‐Cell Analysis Based on Planar Back‐Side Contact Transducers

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