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

Mamińska, Renata; Wróblewski, Wojciech

doi:10.1002/elan.200603538

Cited by 19 publications

(8 citation statements)

References 35 publications

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“…Over the past few years, conducting polymers have been applied as promising ion-to-electron transducers for solid contact ISEs because they exhibit both electrical and ionic conductivity which means they can help ion-to-electron transition by oxidation/reduction of conducting polymers (Figure 1b) [22], [23]. Many electronically conducting polymers including polypyrroles [24], poly(3-octylthiophene) (POT) [25], and poly(3,4-etyhlene-dioxythiophene) (PEDOT) [26], and polyaniline (PANI) [27] were tested as ion-to-electron transducers. It should be noted that PANI does not prevent water layer formation; rather, its conductivity is stable over a wide range of water content [28], [29].…”

Section: Introductionmentioning

confidence: 99%

Potassium Ion Selective Electrode Using Polyaniline and Matrix-Supported Ion-Selective PVC Membrane

2018

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Solid-state potassium ion selective electrode (K + ISE) has been the most studied chemical sensors due to its practical importance in biomedical applications. One of the major obstacles that prevented widespread use of solid-state K + ISE has been output potential drift problem. In this paper, we developed an electrochemical sensing unit in which working, counter, and reference electrodes are integrated in a single plane as all-solid-state form. In order to mitigate the output potential drift, a polyaniline intermediate layer and salt-saturated polyvinylebutyral top coating are introduced in the working and reference electrodes, respectively. Using cyclic voltammetry (CV), uniform layers of polyaniline are deposited on carbon electrode, as confirmed by scanning electron microscope observation. Potentiometry and electrochemical impedance spectroscopy measurement on our K + ISE show high sensitivity (60.5 mV/decade), low concentration for the limit of detection (10 −5.8 M), and large range of linear detection (10 −5 − 1 M), and superior selectivity of K + ISE against NH + 4 , Na + , Mg 2+ , Ca 2+ , and Fe 3+. With its high potential to be miniaturized, we foresee that our solid-state K + ISE will motivate the future applications in microdevices for clinical analysis, agricultural, and environmental applications.

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Section: Introductionmentioning

confidence: 99%

Potassium Ion Selective Electrode Using Polyaniline and Matrix-Supported Ion-Selective PVC Membrane

2018

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“…The ion-selective microelectrodes have been fabricated by direct deposition of the PVC/DOS-based membranes containing appropriate ionophores on Au transducers made on epoxy-glass laminate (coated-wire type microsensors) [47]. Comparable ion selectivity (log K K,Na ¼ À 3.30) and calibration curves (slope: 54 -55 mV/pK þ ) of the exemplary K þ -selective microelectrodes have been measured in combination with the designed reference microelectrode and a commercial double junction Ag/ AgCl reference electrode (see Fig.…”

Section: Complete Miniaturized Electrochemical Cell For Flow Analysismentioning

confidence: 99%

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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“…Usually, it is caused by various polyHEMA thickness. It is possible to eliminate the polyHEMA layer (Mamiń ska and Wróblewski, 2006), the result is a so-called coated wire electrode. The advantage of this solution is the simplicity of the design and the complete elimination of liquid electrolyte solution (Cattrall and Freiser, 1971).…”

Section: Introductionmentioning

confidence: 99%

Ion-selective electrode made with LTCC (low temperature co-fired ceramics) technology

Malecha

Dawgul

Pijanowska

2014

Microelectronics International

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Purpose -The purpose of this paper is to focus on development and electrical characterization of miniature ion-selective electrode (ISE) for application in micro total analysis system or lab-on-chip devices. The presented ISE is made using low temperature co-fired ceramics (LTCC). It shows possibility of integration chemically sensitive layers with structures fabricated using modern microelectronic technology. Design/methodology/approach -The presented ISEs were fabricated using LTCC microelectronic technology. The possibility of ISE fabrication on multilayer ceramic substrate made of two different LTCC material systems (CeramTec GC, Du Pont 951) with deposited thick-film silver pad is studied. Different configurations of LTCC/silver pad (surface, embedded) are taken into account. Electrical performance of all LTCC-based structures with integrated ISE was examined experimentally. Findings -The preliminary measurements made for ammonium ions have shown good repeatability and linear response with slope of about 30-35 mV/dec. Moreover, no significant impact of the LTCC material system and silver pad configuration on fabricated ISEs' electrical properties was noticed.Research limitations/implications -The presented research is a preliminary work. The authors focused on ISE fabrication on LTCC substrates without any microfluidic structures. Therefore, further research work will be needed to evolve ion-selective membrane deposition inside microfluidic structures made in LTCC substrates. Practical implications -Development of the LTCC-based ISE makes the fabrication of detection units for integrated microfluidic systems possible. These devices can find practical applications in analytical diagnosis and continuous monitoring of various biochemical parameters. Originality/value -This paper shows design, fabrication and performance of the novel ISE fabrication using LTCC technology.

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

Cited by 19 publications

References 35 publications

Potassium Ion Selective Electrode Using Polyaniline and Matrix-Supported Ion-Selective PVC Membrane

Potassium Ion Selective Electrode Using Polyaniline and Matrix-Supported Ion-Selective PVC Membrane

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

Ion-selective electrode made with LTCC (low temperature co-fired ceramics) technology

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